"They have mass and take up room" is not described in the lecture presentation as a definitive characteristics of organisms, separating them from non-living things.
Numerous essential traits or capabilities are shared by all living things:
1) Order: Cells make up organisms, which are highly coordinated, ordered structures. Even very basic, single-celled creatures are astonishingly complicated because within each cell, atoms form molecules, which in turn form cell organelles and other cellular inclusions.
2) Reproduction: DNA replication is the first step in the reproduction of single-celled organisms. Then, as the cell is about to split into two new cells, they equally divide it. Specialized reproductive germline cells that develop into new individuals are frequently produced by multicellular organisms. DNA-containing genes are transferred to the progeny of an organism during reproduction. The presence of these genes guarantees that the progeny will be of the same species and will share traits like size and shape.
3) Expansion and development: Each organism's growth and development are governed by particular instructions encoded in its genes. A species' offspring will develop into adults who share many traits with their parents thanks to the instructions provided by these genes, which control cellular growth and development.
4) Energy conversion: For their metabolic processes, all living things need an energy source. Others use the chemical energy found in the molecules they consume as food. Some species use the chemical energy found in food molecules.
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The complete question is:
Which of the following is NOT described in the lecture presentation as definitive characteristics of organisms, separating them from non-living things?
1) They have mass and take up room.
2) They either partially or fully replicate.
3) They alter both matter and energy.
4) They are built upon one or more cells.
The primary structure of a protein determines its secondary and tertiary structures. Arrange these steps in the folding of a globular protein.
- rapid and reversable formation of local secondary structure.
- "molten globule" formation of assembled domains.
- final protein monomer formation.
- adjustments in the conformations of domains.
- formation fo domains through cooperative aggregation fo folding nuclei.
It should go in this order: D, B, A, C, and E. A protein's secondary and tertiary structures are determined by its original structure.
Peptide bonds are created when amino acids condense to form protein structures. The main structure of a protein is its arrangement of amino acids. The dihedral angles of the peptide bonds determine the secondary structure, while the folding of protein chains in space determines the tertiary structure.
Set up these procedures for globular protein folding.Local secondary structure forms quickly and reversibly.The development of assembled domains into "molten globules."creation of the final protein monomer.Modifications to domain conformations.-the cooperative aggregation of folding nuclei to produce domains.Learn more about globular protein Visit: brainly.com/question/13637212
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Correct Question:
The primary structure of a protein determines its secondary and tertiary structures. Arrange these steps in the folding of a globular protein.
1- rapid and reversable formation of local secondary structure.
2- "molten globule" formation of assembled domains.
3- final protein monomer formation.
4- adjustments in the conformations of domains.
5- formation fo domains through cooperative aggregation fo folding nuclei.
mitochondria are thought to have evolved from ancient bacteria. which characteristics of a free-living bacteria have mitochondria lost over time? question 10 options: motility ribosomes an independent genome phospholipid membranes ribosomes, phospholipid membranes, motility, and an independent genome
Motility characteristics of a free-living bacteria have mitochondria lost over time
A mitochondrion is a kind of organelle present in the cells of most eukaryotes, including mammals, plants, and fungi. Mitochondria have a double membrane structure and employ aerobic respiration to produce adenosine triphosphate (ATP), which is used as a source of chemical energy throughout the cell. Albert von Kölliker identified them in the voluntary muscles of insects in 1857 .
Carl Benda invented the name mitochondrion in 1898. The mitochondrion is commonly referred to as the "powerhouse of the cell," a term originated by Philip Siekevitz in a 1957 essay of the same title.
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Full Question :Mitochondria are thought to have evolved from ancient bacteria. Which characteristics of a free-living bacteria have mitochondria lost over time?
1. ribosomes
2. motility
3. phospholipid membranes
4. an independent genome
5. ribosomes, phospholipid membranes, motility, and an independent genome
the primary feature distinguishing human intelligence from that of intelligent animals like dolphins and chimpanzees is
Humans differ from most other creatures in that they are self-aware. Self-awareness is characterized in psychology as metacognition, or awareness of one's own ability to think.
Humans are thought to be the most intellectual living species on the planet. Animals lack the ability to think and react to situations like humans do. In comparison to animal brains, the human brain is considered enormous.
While measuring intelligence in any organism is challenging, numerous studies indicate that dolphins are second only to humans in intelligence. Dolphins are second only to humans in terms of brain-to-body size ratio when using brain size as a barometer. Dolphins, on the other hand, perform well on IQ tests.
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which of the following best describes evolution? the disappearance of a species. there is competition for resources. a change in a population over time. survival of the fittest.
Survival of fittest best describes evolution. Evolution is the method by which a species changes over time to accommodate its environment.
Evolution is the shift in a biological population's heritable traits over successive generations. These traits are the expressions of genes, which are passed down through reproduction from parent to offspring. Genetic recombination and mutation frequently result in variation within a population. This variety is subjected to evolutionary processes like natural selection (including sexual selection) and genetic drift, which cause some traits to become more or less prevalent within a population. This is when evolution happens. Heritable traits evolve over successive generations as a result of shifting evolutionary forces that determine whether a trait is prevalent or rare within a population.
The phrase "survival of the fittest," popularised in Charles Darwin's fifth edition of On the Origin of Species (published in 1869), argued that animals most adapted to their environment have the best chances of surviving and procreating. In this theory, he provided an explanation of how to thoroughly and accurately characterise the mechanism and process of natural selection. The reproductive success of an organism can be used to gauge the effectiveness of this physical biology principle.
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select the situations in which the weight of the person is zero. multiple select question. an astronaut far from any planets, moons, or asteroids an astronaut aboard the international space station a skydiver an astronaut exactly between two identical asteroids
The weight of a person is defined as the force of gravity acting upon the person's mass.
Weight is determined by the mass of an object and the strength of the gravitational field it is in. In the case of an astronaut far from any planets, moons, or asteroids, they would technically have zero weight because they are in a state of free-fall, meaning they are being acted upon by gravity but are not being supported by any solid surface. However, this does not mean that the astronaut has no mass.
Similarly, an astronaut aboard the International Space Station is in a state of microgravity, and although they technically have zero weight, they still have mass. On the other hand, a skydiver is affected by gravity, and therefore has weight, while falling towards the ground. The same applies to an astronaut exactly between two identical asteroids, as they are under the influence of gravity from both objects, and therefore have weight.
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Why would a change in the numbers of producers (for example phytoplankton ) cause a large change to the rest of an ecosystem
Answer:
Explanation:
A large change in the number of producers(for example phytoplankton) would have a huge effect on the rest of the ecosystem because there would be so much phytoplankton that fish would feed so much and keep increasing their population and sharks would eat so much of the fish that the sharks would be increasing their population rapidly. If the change in producers increases, then the rest of the population on the planet increases.
a gene can be described as a unit of heredity or as a segment ___ of that produces a functional product.
A gene can be described as a unit of heredity or as a segment of DNA of that produces a functional product.
A gene is a segment of DNA that provides the instructions to create a functional product, such as a protein. Genes play a critical role in determining our inherited traits, such as eye color, height, and susceptibility to certain diseases. The DNA in a gene contains the code for making a specific protein, which in turn performs a specific function in the body. Genes are passed from parent to offspring during reproduction and can be passed on unchanged for generations or they can mutate, leading to changes in the DNA code and potentially resulting in different traits or health outcomes. The study of genes and their functions is known as genetics, and understanding the role of genes in health and disease has important implications for medicine and human biology.
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Enzymes use several types of catalytic mechanisms. Differentiate between acid-base catalysis, covalent catalysis, and metal ion catalysis. (If you answer any part of this question incorrectly, a single red X will appear indicating that one or more of the phrases are sorted incorrectly.) (Place the correct definitions in the correct categories (there are 4 categories), acid-base, covalent, metal or all):
catalysts may participate in oxidation-reduction reactions by changes in the oxidation state
a Zn2+ cofactor may properly orient the substrate in the active site through ionic interactions
may take part in interactions involving Fe2+
lowers the energy or stabilizes the transition state or intermediate
catalyst retains its original form after reaction occurs
a proton is transferred between enzyme and substrate
a covalent bond forms between enzyme and substrate
two-part catalytic process (for example, the chymotrypsin mechanism)
use a nucleophilic function group
may use amino acids such as aspartate or lysine for protonation or proton abstraction
The differentiation between acid-base catalysis, covalent catalysis, and metal ion catalysis is given below:
The DifferentiationAcid-base catalysis
a proton is transferred between the enzyme and substratemay use amino acids such as aspartate or Lysine for protonation or proton abstractionCovalent catalysis
a covalent bond is formed between enzyme and substratetwo-part catalytic process (for example; chymotrypsin mechanismuses a nucleophilic functional groupMetal ion catalysis
catalysts may participate in oxidation-reduction reactions by changes in the oxidation state.a Zn2+ cofactor may properly orient the substrate in the active site through ionic interactions.May take part in interactions involving Fe2+All
lowers activation energy or stabilizes the transition state or intermediatecatalyst retains its original form after the reaction occursRead more about covalent catalysis here:
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which of the following statements about species, as defined by the biological species concept, is (are) correct? i. biological species are defined by reproductive isolation. ii. biological species are the model used for grouping extinct forms of life. iii. all members of a species can potentially interbreed.
Option i, iii are Correct. According to the biological species idea, the following statements concerning species are true:
i. Reproductive isolation characterizes biological species.
iii. There is a chance that all members of a species could interbreed.
"A population must be reproductively isolated from other species in order to be designated a species." The biggest population unit in which gene flow is conceivable is the biological species, which is defined by reproductive isolation.
It mostly depends on reproductive seclusion. The idea of a biological species was put forth by Ernst Mayr. This group defines a species as a collection of living things with the ability to breed with one another and produce fruitful offspring.
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consider three yellow, round peas, labeled a, b, and c. each was grown into a plant and crossed to a plant grown from a green, wrinkled pea. exactly 100 peas derived from each cross were sorted into phenotypic classes as follows:
Genotypes of A, B, and C:
A: YyRR >< yyrrB: YYRR >< yyrrC: YyRr >< yyrrFirst, we should analyze the frequencies of each phenotype to determine the genotype of the parents.
Seed A
Yellow, round frequency = 51/100 = 0.51
Green, round frequency = 49/100 = 0.49
Y= Yellow
y=green
R=round
r=wrinkled
YyRR >< yyrr
Seed B
In this case, it is easier, if you obtain offspring with the same genotype, which means that both parents are homozygous. So:
YYRR >< yyrr
Seed C
Finally, if you observe the offspring of seed C, you will notice that the ratio is close to 1:1:1:1. The only way to obtain this result is that the Seed was heterozygous for both traits
YyRr >< yyrr
Your question is incomplete but most probably your full question was:
Consider three yellow, round peas, labeled A, B, and C. Each was grown into a plant and crossed to a plant grown from a green, wrinkled pea. Exactly 100 peas derived from each cross were sorted into phenotypic classes as follows:
A: 51 yellow, round,
49 green, round
B: 100 yellow, round
C: 24 yellow, round
26 yellow, wrinkled
25 green, rounds
25 green, wrinkled
What are the genotypes of plants A, B, and C? (Use gene symbols of your own choosing; be sure to define each one.)
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When a protein encoding gene is transcribed, the RNA molecule that is produced is referred to as ______ RNA (mRNA)
The majority of genes found in a cell's DNA dictate the amino acid composition of its proteins; these genes' translated products, known as messenger RNA (mRNA) molecules.
They ultimately control how proteins are made. By means of the transcription and translation processes, messenger RNA (mRNA) is a type of RNA that carries genetic information from DNA to protein. Making an RNA copy of a gene's DNA sequence is a process known as transcription in the context of genomics. The messenger RNA (mRNA) copy carries the DNA-encoded protein information for the gene.
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bio 345 lecture which of the following insertions or deletions would cause a frameshift mutation if the insertion/deletion starts at the beginning of a codon? (multiple answers) group of answer choices 1 basepair
The insertions or deletions of base pairs 1, 2, and 3 would cause a frameshift mutation if the insertion/deletion starts at the beginning of a codon.
The reading frame is altered when a number of nucleotides in the DNA sequence are removed or added that are not more than three in number, and this is known as a frameshift mutation. That is, a codon is when three nucleotide sequences are read simultaneously. Triplet codons in mRNA are read by ribosomes. Since codons are triplets, adding or subtracting three nucleotides will not alter the codon reading frame and will not affect the protein's function because of this. However, if the nucleotides that are added or removed are not a multiple of three, this will result in a shift in the reading frame, resulting in the incorporation of incorrect amino acids and the formation of a protein that is not functional due to the possibility that the new reading frame will contain a stop codon prior to the end of the sequence (premature termination).
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(complete question)
which of the following insertions or deletions would cause a frameshift mutation if the insertion/deletion starts at the beginning of a codon? (multiple answers) group of answer choices
1 basepair
2 basepair
3 basepair
4 basepair
scientists use a general process known as the blankto ask and answer questions about nature.target 1 of 4 2. a(n) blank is a proposed explanation for a set of observations. it leads to predictions that can be tested by additional observations or by experiments.target 2 of 4 3. a(n) blank involves running a test multiple times while changing one variable, leaving the others the same.target 3 of 4 4. a(n) blank is broader in scope than a hypothesis, is supported by a large body of evidence, and generates many new hypotheses.
scientists use a general process known as the scientific method observations to ask and answer hypotheses questions about nature.
A hypothesis is a proposed explanation for a set of observations. It leads to predictions that can be tested by additional observations or by experiments. An experiment involves running a test multiple times while changing one variable, leaving the others the same. A observations theory is broader in scope than a hypothesis, is supported by a large body of evidence, and generates many new hypotheses.
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in a hypothetical environment, fishes called pike-cichlids locate their prey by sight and eat small, immature algae-eating fish. thus, the population of algae-eaters experiences predatory pressure from pike-cichlids. which of the following possible changes is least likely to occur in the algae-eater population in future generations?
Female algae eaters may grow bigger and produce larger and more numerous broods.
The larger size of the female algae eaters is a conspicuous trait, and since predators hunt by sight, they will be able to quickly recognize the fishes. A crucial part of repopulating the decimated population of preyed animals is played by larger female fish that have better broods.
As it is said that populations of fish that eat algae are threatened by predation, populations of large broods will only increase if predators are able to release large fish. This demonstrates that these would be less likely to be found among the population of algae eaters.
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What animal did the soldiers have to eat when food supplies were low?
O Ground hogs
O Skunks
O Dogs
O Snakes
What motion of the skeleton involves putting your hand out straight and then turning it over and back again?
Pronation is the motion of the skeleton muscle which involves putting your hand out straight and then turning it over and back again.
What is Pronation?Pronation is the motion which moves the forearm (hand) from the anatomical position to the pronated position or palm backward. This motion of the forearm is produced by the rotation of the radius at the proximal radioulnar joint of the forearm, accompanied by movement of the radius at the distal radioulnar joint of the hand.
Overpronation is linked to several conditions and symptoms, such as Achilles tendinitis. Achilles tendinitis happens when we put stress on the Achilles tendon. Bunions are the painful bony lumps on the outside of the big toe. Heel pain can have pain behind, beneath or within the heel bone.
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drag the organelle labels of group 1 to the appropriate targets. then identify the function of each organelle on the target below it. resethelp group 1 group 2 group 1 group 2 group 1 group 2 group 1 group 1 group 1 group 1 group 2 group 2 group 2 group 2
a ) Group 1 : Nucleus
Group 2 : stores genetic information
Reason : The above options are correct because, the nucleus is a membrane-enclosed organelle, in eukaryotic cells, which stores the genetic material (DNA).
b.) Group 1 : Plasma membrane
Group 2 : regulates transport
Reason : The above options are correct because, the plasma membrane separates the interior of the cell from the outside environment and also regulates the transport of materials entering and exiting the cell.
c.) Group 1 : Cytoskeleton
Group 2 : provides support
Reason : The above options are correct because, the cytoskeleton is a structure that provides mechanical support and helps cells maintain their shape and internal organization.
d.) Group 1 : Golgi
Group 2 : processes protein
Reason : The above options are correct because, the Golgi processes proteins made by the endoplasmic reticulum before sending them out to the cell.
e.) Group 1 : Lysosome
Group 2 : Breakdown and recycling
Reason : The above options are correct because, the lysosomes recycle the cell's organic material and break down cellular waste products into simple compounds.
f.) Group 1 : flagellum
Group 2 : movement
Reason : The above options are correct because, flagellum is primarily a motility organelle that helps in movement.
g.) Group 1 : Mitochondrion
Group 2 : energy harvest
Reason : The above options are correct because, mitochondria are small organs that has a lot of energy stored in them that mitochondria can harvest from.
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Full Question ;
Drag the organelle labels to the appropriate pink targets. Then identify the function of each organelle on the blue target below it. Reset Help nucleus mitochondrio Group toskeleton Group 2 Nagelum Group membrane (b Group 2 Gold Group 1 Group 2 otome support רהיווווותוח רוווחחח שווי בהווחוסן חוphווהוותם Group 2 Tagem Group 1 f membrane Group 2 Gold Group CD Group 2 ysosome Droo Woes genee infomation movement transport Group Group 1 Group Group proces Group 2 Group 2 Group 2 Group 2 torns down and Parson Education, Inc
fill in the blank. reddish-pink color of these algae is due to presence of ___pigments, which absorb blue light, while reflecting ___light. those pigments protect the chloroplast from intense ___light and also blank radiation, as well as absorbing ___, which provides the alga with liquid water as the snow melts around it.
These algae are reddish-pink in hue because they contain carotenoid pigments, which absorb blue light while reflecting red light.
These pigments shield the chloroplast from UV and bright blue light while also absorbing heat, which helps the alga produce liquid water when the snow melts around it.
Because of the pigment phycoerythrin, which reflects red light and absorbs blue light, red algae are red. The principal pigment in photosynthesis, chlorophyll, absorbs red and blue light the most effectively while reflecting green light.
In chloroplasts, which also house the pigment and algae chlorophyll, photosynthesis occurs in plants. The function of chlorophyll in a plant is to absorb light, typically sunlight. Two different types of energy-storing molecules receive the energy that light absorbs.
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As two different hormones reach the same cell they counteract the effect of one another. This outcome is known as a(n) ________.
As two different hormones reach the same cell they counteract the effect of one another. This outcome is known as an antagonistic effect.
A biological reaction to exposure to numerous chemicals is less severe than what would be predicted if the known effects of the individual substances were combined together. This is called a dose-dependent response.
Antidotes for poisonings and other medical therapies are frequently based on substances that have antagonistic effects. For instance, ethyl alcohol, also known as ethanol, can counteract the harmful effects of methyl alcohol, often known as methanol, by displacing it from the enzyme that is responsible for oxidizing the methanol.
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suppose meselson and stahl had done their experiment the other way around, starting with cells fully labeled with 14 n light dna and then transferring them to medium containing only 15 n heavy dna. predict the density of dna molecule after one round and two rounds of replication.
The density of dna molecule after one round and two rounds of replication is half to be [tex]1.722gm/cm^3.[/tex]
In 1958, Matthew Meselson and Franklin Stahl conducted the Meselson-Stahl experiment, which proved Watson and Crick's theory that DNA replication was semiconservative. When the double-stranded DNA helix is reproduced in semiconservative replication, each of the two new double-stranded DNA helices is made up of one strand from the original helix and one that was freshly synthesised.
You would only anticipate 14N/15N hybrid DNA, which has a density of 1.715 gm/cm3, after one replication cycle. You would anticipate that after two rounds of replication,
half of the molecules would be 15N/15N heavy DNA (density[tex]1.722 gm/cm^3[/tex])
and half would be 14N/15N hybrid DNA (density [tex]1.722 gm/cm^3[/tex]).
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complete queestion:Suppose Meselson and Stahl had done their experiment the other way around, starting with cells fully labeled with 14N light DNA and then transferring them to medium containing only 15N heavy DNA. What density of DNA molecule would you predict after one and two rounds of replication?
These junctions can be cell-matrix junctions.
A) gap junction
B) tight junction
C) anchoring junction
D) connexin
E) neuromuscular junction
C) Cell-matrix junctions may be anchoring junctions.Occluding junctions, anchoring intersections, as well as communicating junctions are the three functional classes of cell junctions.
Cell junctions, also known as intercellular bridges as well as junctional complexes, are indeed a group of cellular structures made up of multiprotein complexes that, in animals, provide contact as well as adhesion between a cell as well as the extracellular matrix or between a cell and a neighbouring cell.Occluding junctions, anchoring intersections, as well as communicating junctions are the three functional classes of cell junctions. The maintenance of a concentration differences of tiny hydrophilic molecules all over epithelial cell layers depends on tight junctions, which are occluding junctions. They carry it out in two ways. Adherens junctions, desmosomes, hemidesmosomes, as well as cell-matrix adhesion complexes are the four main types of anchoring junctions. Different types of adhesion involve different types of anchoring junctions.
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make a claim about the relative soil nutrient levels in silty loam soil compared to sandy loam soils.
Ammonium-N buildup in soil lasts just a short time because nitrate is formed from ammonium more quickly than it is through mineralization. Soil nitrate monitoring was decided upon for this reason. Silty soils have significantly smaller particles than sandy soil. Sandy soils have very few nutrients and a poor capacity to store water.
Knowing how much soil nitrogen is present also aids in minimizing the amount of environmental pollution caused by runoff from too much soil nitrogen. Because the process of converting ammonium to nitrate proceeds more quickly than mineralization, the buildup of ammonium-N in soil is only temporary. Although plants may also take up ammonium, the majority of the nitrogen (N) that a vegetable crop obtains comes in the form of nitrate. Rock fragments, humus, inorganic, and organic components are all found in the soil, which is a portion of the earth's surface. The breakdown of rocks into their component pieces typically results in the formation of soil. Silty soil has a smooth, fine texture and is better than sand in retaining water. Silt is frequently found next to rivers, lakes, and other bodies of water because it is easily carried by flowing currents. The most fruitful soil is silt soil, which is superior to the other three kinds. It's also applied to agricultural practices to boost soil fertility. Sandier soil types are excellent for drainage systems. Sandalwood is often created when rocks like granite, limestone, and quartz break down or fragment.
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The complete question is:
Now a scientist wants to investigate how burning of land affects nutrient levels in soil. The scientist sets up 1010 plots, each with an area of 1 m21 m2. Five plots are burned, and five plots are not burned. Over the next year, a variety of soil tests are performed in the plots every month.
(a) Explain why the scientist would test for nitrate levels in the soil in the study plots.
(b) Soil texture also affects soil nutrient levels. Make a claim about the relative soil nutrient levels in silty loam soil compared to sandy loam soils.
fill in the blank. your diaphragm is in its relaxed, arc-shaped confirmation when breathing out, so this means that that pressure within your lungs is___when compared with the atmospheric pressure outside of the body.
The main muscle used for breathing is the diaphragm, which is situated underneath the lungs.
This is a large, dome-shaped muscle which frequently contracts unconsciously and regularly. The diaphragm flattens and tightens during inhalation, as well as the chest cavity widens. A vacuum is produced by the contraction, drawing oxygen into the lungs. Air is driven out of the lungs during exhalation when the diaphragm relaxes & assumes its original form. This contraction generates a vacuum, which draws air into the lungs. Air is driven out of the lungs when the diaphragm relaxes and assumes its dome-like form during expiration. The reduction in thoracic volume and rise in intraalveolar pressure during expiration are caused by the relaxation of a diaphragm and elastic tissue rebound. The act of exhaling forces air from the lungs.
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list the tissue layers of the urinary bladder from the most interior cell type or tissue layer to the final exterior layer.
List the tissue layers of the urinary bladder from the most interior cell type or tissue layer to the final exterior layer are transitional epithelium, lamina propria, muscle layer, and adventitia.
The urinary system is an organ system that functions to filter and dispose of waste substances by producing urine. The organs included in this system are the kidneys, urethra, bladder and urethra.
The bladder is an organ that is shaped like a pouch and is located behind the pubic bone stores urine from the kidneys until it is ready to be excreted. The bladder consists of layers of mucosa, muscularis and adventitia. The mucosa itself is covered by a thick transitional layer of loose connective tissue forming the lamina propria. While the tunica masculinis consists of bundles of smooth muscle fibers and the tunica adventasia consists of fibroelastic tissue.
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Which of the following describes a common feature of F-actin, microtubules and intermediate filaments? a) filaments are all made of up monomeric subunits b) filaments provide tracks for molecular motors c) filament assembly depends on ATP hydrolysis d) filament assembly depends on GTP hydrolysis e) filaments are all polar structures
Option b is Correct. The fact that filaments serve as tracks for molecular motors is what the next sentence refers to as a characteristic of intermediate filaments, microtubules, and F-actin.
Similar to actin filaments, microtubules are dynamic structures that can quickly expand and contract by the addition or subtraction of tubulin proteins. Microtubules exhibit directionality, which means they have two structurally distinct ends, making them similar to actin filaments in this regard.
For mobility and stability, this structure serves as a skeleton and muscle at the same time. The cytoskeleton's long fibers are polymers of subunits. The cytoskeleton is made up primarily of intermediate filaments, microfilaments, and microtubules. Actin filaments and microtubules are constructed of compact and globular actin subunits, whereas intermediate filaments are composed of smaller, elongated, and fibrous subunits.
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the following graphic shows the major steps of gene expression. place the following descriptions of the steps in the correct order.
A strand of DNA's information gets replicated into a fresh messenger RNA molecule through a process called transcription (mRNA). The correct order of the given statements according to the graphic representation is D, A, C, E, and B.
DNA preserves genetic material as a reference or template safely and permanently in the cell nucleus. A complementary strand of mRNA is produced after the transcription of genetic information from DNA. A protein chain is created as a result of the amino acids joining together and finally separating from the ribosome. The ribosome transports mRNA, an intermediary molecule, from the nucleus. DNA, which is found in the nucleus, acts as a blueprint for the expression of genes. The ribosome in the cytoplasm translates the mRNA and its codons, which designate a tRNA containing certain amino acids.
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The complete question is:
The following graphic shows the major steps of gene expression. Place the following descriptions of the steps in the correct order.
A) The genetic information is transcribed from DNA into a complementary strand of mRNA.
B) The amino acids bind together to form a growing protein chain that eventually breaks off from the ribosome.
C) mRNA, an intermediate molecule, leaves the nucleus to the ribosome.
D) Located in the nucleus, DNA serves as the template for gene expression.
E) In the cytoplasm, mRNA and its codons are translated at the ribosome and specify a tRNA carrying specific amino acids.
true/false. birth control pills contain a combination of estrogen and progesterone that signal the pituitary gland to not release follicle-stimulating hormone and luteinizing hormone which results in the ovary not releasing an egg for fertilization.
True. Birth control pills, also known as oral contraceptives, contain a combination of estrogen and progesterone hormones.
These hormones signal the pituitary gland to not release follicle-stimulating hormone and luteinizing hormone, which in turn results in the ovary not releasing an egg for fertilization. This mechanism of action is one of the ways that birth control pills prevent pregnancy. However, it is important to note that birth control pills do not protect against sexually transmitted infections.
Birth control pills are a commonly used form of contraception. They work by containing a combination of estrogen and progesterone hormones that signal the pituitary gland to not release follicle-stimulating hormone and luteinizing hormone, which prevents the ovary from releasing an egg for fertilization. This mechanism of action is effective in preventing pregnancy.
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Estimate the specimen size below if the low power lens was used. The circle indicates the field of view. 1.8 mm
0.9 mm 90 um 180 um
180 um would be the deemed specimen size. A specimen is a piece of matter, an organism, or some other object that has been taken for scientific investigation.
Typically, specimens are utilized in testing, research, and teaching settings. Biological samples like blood, tissue, and cells as well as inanimate items like rocks, minerals, and fossils are examples of specimens. The size of the specimen and the lens's power are inversely proportional. Less lens power is required to see a specimen the larger it is. In contrast, a stronger lens is required to observe a specimen that is smaller in size.
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Place the types of mutations in humans in the correct order going from most frequent (on top) to least frequent (at the bottom).1. SNV mutations2.Indels3. Mobile element insertion4.CNV mutation
SNV mutations, Indels, CNV mutations, and Mobile genetic insertion are the different mutation types that occur in humans in the right order, from most often (at the top) to least frequent (at the bottom).
The Brain Somatic Mosaicism Network coordinates a multi-institutional study to assess how well current methods can identify simulated somatic single-nucleotide variants (SNVs) in DNA mixing experiments, produce multiple copies of whole-genome sequencing data from a single neurotypical individual's dorsolateral prefrontal cortex, other brain regions, dura mater, and dural fibroblasts, develop methods to find somatic SNVs, and use various analytical techniques. There are hundreds to thousands of somatic single-nucleotide variants (SNVs) in each cell of the human brain, and a lower proportion of cells also carry somatic copy number variations (CNVs) and mobile genetic elements, such as retrotransposon insertions. Numerous somatic SNVs have significant variable allele fractions (VAFs), which suggests that they first appeared during early development.
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An example of a biomarker is A. cholesterol. B. any DNA sequence. C. sodium chloride. D. hydrogen
A biomarker is a pharmacologic reaction to an intervention or a normal biological or pathologic process. An example of a biomarker is cholesterol.
The body uses cholesterol to make hormones, sustain cell structure, and preserve neurons. It is made by your liver and received from the consumption of animal items such as meat, cheese, and egg yolks.
The cholesterol biomarker panel is used to measure cardiovascular health. High cholesterol levels are linked to artery plaque formation, which raises the risk of cardiovascular disease.
LDL-C (low-density lipoprotein cholesterol) is a common cardiovascular biomarker. Biological plausibility was established several decades ago, and a substantial link between LDL-C and coronary artery disease (CAD) was revealed.
Several major clinical trials have now demonstrated that lowering LDL-C clearly reduces the risk of CAD-related clinical events. LDL-C as a surrogate end goal remains popular since it accurately reflects the clinical impact of treatments through this method.
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