Mutations are changes in the DNA sequence that can cause alteration in signaling pathways, transcription, translation, and epigenetics is a reason that a cell might not be able to create and deliver all the protein it needs.
Mutation can change the instructions of a gene to not make protein at all. It can also cause a protein to malfunction.
It can change the transcription of a nucleotide sequence from DNA to mRNA.
A lack of amino acids can also be a major reason that a cell might not be able to create and deliver the protein.
If you need to learn more about why a cell might not be able to create and deliver all the protein it needs, click here
https://brainly.com/question/14401777
#SPJ4
Some ribosomes, which are the protein manufacturing organelles in the cell, are suspended in the cytosol of a cell, whereas other ribosomes ________.
Some ribosomes, which are the protein manufacturing organelles in the cell, are suspended in the cytosol of a cell, whereas other ribosomes are attached to the outside of the nucleus.
What is ribosomes?An intercellular structure made of both RNA and protein, and it is the site of protein synthesis in the cell is said to be ribosomes.
The ribosome reads the messenger RNA (mRNA) sequence and translates that genetic code into a specified string of amino acids, which grow into long chains that fold to form proteins.
Ribosomes was present both in plants cells and animal cells.
Some ribosomes, which are the protein manufacturing organelles in the cell, are suspended in the cytosol of a cell, whereas other ribosomes are attached to the outside of the nucleus.
Learn more about ribosomes,
https://brainly.com/question/241631
#SPJ1
Food is moved down from the mouth into the stomach through:
[A] Osteoporosis
[B] Peristalsis
[C] Ejestion
[D] None of the choices are correct
Answer: B
Explanation:
A homeostatic imbalance that activates these bone cells would lead to a loss of bone density.
Answer: Osteoclasts are the bone cells that break down bone. If they were activated more than normal, you should expect to see bone loss.
Explanation:
All lipids are polymers of? fatty acids. triglycerides. polar. hydrophilic. more soluble in nonpolar solvents than in water.
Answer:
fatty acids
Explanation:
Growth factors:____.
A. are inorganic.
B. are synthesized by the organism.
C. contain elemental oxygen.
D. cannot be synthesized by the organism.
E. all of these choices are correct.
D. cannot be synthesized by the organism.
The Study of Microbial Growth
-The Basis of Population Growth: Bacterial Cell Cycle and Binary Fission
Transverse binary fission is the mechanism used by bacteria to reproduce. In other words, one cell divides into two, and those two divide into four, and so on. A visible colony will emerge through several cell divisions within 10–24 hours once a single cell on a culture plate starts to divide.
-The Rate of Population Growth
The generation time is the length of time needed for one cell to divide. Generation times vary amongst different species; can be as low as 5 minutes and as lengthy as 30 hours. Bacteria evaluate their growth in cell counts rather than individual cell sizes. Growth is expressed in generation time.
Determinants of Population Growth
Over time, bacterial growth adheres to a growth curve—a predictably growing pattern.
Other Methods of Analyzing Population Growth
In liquid media, microbe growth causes turbidity. A spectrophotometer can be used to detect turbidity; however, not all bacterial cells are alive, therefore a higher absorbance indicates a higher bacterial cell count.
The six primary physical elements that influence the proliferation of microbes are highlighted in the following sentences. These elements are:1. Solutes and Water Acidity
2. Temperature
3. pH
4. Oxygen Requirements
5. Pressure
6. Radiation.
To learn more about Growth factors click below-
https://brainly.com/question/14732566
#SPJ4
Which factor causes chemical weathering?
Options:
A: gravity
B: acids
C: wind
D: sunlight
Answer:
B
Explanation:
Think about the fact that it's named "chemical weathering." Acid = chemicals. Acid usually causes weathering because it breaks down objects. Hope this helps!
What feedback mechanisms help you regulate your body temperature?
Answer:
It would be negative feedback.
Explanation:
The reason negative feedback is the type of feedback mechanism that helps you regulate your body temperature is because it reduces excessive responses and keeps a variable within the normal range.
I need help pleaseeI really don’t get this so if y’all could please explain this to me I will appreciate it a lot!!!
Answer:
mRNA: UCU GUA GGU AAU UGG UGU CAC AUC
Amino Acid: Ser Val Gly Asn Trp Cys His Ile
Explanation:
For the mRNA it is the complemetary base pair (A and U) (G and C) remeber in RNA there is no T base pair so there is U intead
For the Amino acid the table above can be used (follow in order that the base triplet)
Place each attribute into the bin of the bacterial group it belongs to, based on whether the bacterium is a gram-positive or a gram-negative cell.
The attributes of the two categories of bacterial groups are given as follows:
Group A: Gram-positive bacterial cell wall:
thick layer of peptidoglycanteichoic acidssingle lipid bilayer membraneGroup B: Gram-negative bacterial cell wall:
thin layer of peptidoglycanperiplasmic spacelipopolysaccharidesdual lipid bilayer membranesWhat is a gram Negative Bacterial Cell wall?Gram-negative bacteria have a thin peptidoglycan cell wall that is surrounded by an outer lipopolysaccharide-containing membrane. Gram-positive bacteria lack an outer membrane but are encircled by peptidoglycan layers that are several times thicker than those seen in Gram-negative bacteria.
What is a gram Positive Bacterial Cell wall?Gram-positive bacteria's cell wall is a complex assembly of glycopolymers and proteins.
A thick peptidoglycan sacculus surrounds the cytoplasmic membrane and is adorned with teichoic acids, polysaccharides, and proteins.
What are the similarities and differences?Bacteria having thick cell walls are classified as Gram-positive bacteria. These organisms show positive in a Gram stain test. The chemical dye used in the test colors the bacterium's cell wall purple.
Gram-negative bacteria, on the other hand, do not. Instead, they stain pink.
Despite the fact that both types of bacteria can cause sickness, they require distinct therapies. If you have a bacterial illness, the Gram stain will tell you what sort of treatment you require.
Learn more about Gram Positive Cells:
https://brainly.com/question/14044503
#SPJ1
Full Question:
The thickness of this sugar-protein scaffold of peptidoglycan can be used to separate most bacteria into two groups. In your tutorial, you want to illustrate to the students that the thickness of the peptidoglycan layer can be used by microbiologists to differentiate many bacteria by only using an easy staining method that all microbiologists will have to master. This staining procedure, known as the Gram stain, is based on the retention of dyes within the cell wall for a positive result or the rinsing away of the dyes and leakage of the membrane for a negative result. A thicker cell wall will allow for retention of dye crystals that will give the bacterial cell a blue-purple color (positive result), but the thinner cell walls will not allow for the retention of these crystals during rinsing, which will mean that these cells will then be colorless unless another dye that does not require interaction with the cell wall to maintain its retention is used (negative result). In addition to differences in cell wall thickness, Gram-positive and Gram-negative bacteria also differ in the proteins and lipids associated with their cell walls, as well as the composition of their cell membranes. Gram-positive walls are composed of an underlying cytoplasmic membrane, with the thick peptidoglycan layer on the outside offering support. Proteins anchor the membrane and the cell wall together to provide support and structure between the two. Gram-negative staining walls have a different layout. You try to explain in your tutorial that even though these bacteria stain "negative" they do have a thin layer of peptidoglycan sandwiched in between two lipid bilayer membranes.
Place each attribute into the bin of the bacterial group it belongs to, based on whether the bacterium is a Gram-positive or a Gram-negative cell.
On easter island, the most isolated piece of inhabited land in the world, the loss of timber due to the cutting down of trees by humans resulted in?
All of the above ( termination of stone carving around AD 1680, cessation of canoe manufacture, soil erosion, lower crop yields.)
What are the effects of deforestation?For indigenous people, losing trees and other vegetation can result in a number of problems, such as climate change, desertification, soil erosion, less harvests, flooding, and an increase in greenhouse gases in the atmosphere.What impact does tree removal have on the soil?Due to the loss of trees, whose roots anchor the soil, soil erosion is a prevalent issue.Good soils are few, and once they have been stripped away by the frequent, heavy rains, they are quickly washed away.How does the cutting down of trees affect global warming?Carbon is stored in plants and forests. When they are damaged or completely destroyed, for example by fire - a process known as deforestation - this stored carbon has the potential to be released back by increasing atmospheric carbon dioxide, which changes the climate.To learn more about deforestation visit:
https://brainly.com/question/1954170
#SPJ4
During the __________ the virus is idle. select one:
a. dormant phase
b. propagation phase
c. triggering phase
d. execution phase
During the dormant phase the virus is idle.
A virus is a small, contagious organism that can only grow inside of living cells.
What are viruses?A virus is an infectious submicroscopic creature that only reproduces inside of live cells.All living things, including plants, animals, and microbes like bacteria and archaea, are susceptible to virus infection.Since they are difficult to classify as living creatures, viruses are referred to as Agents.Because they produce a variety of diseases that are often exceedingly challenging to control and cure, viruses—which are made of DNA and RNA—can be thought of as agents.Viruses don't exhibit the traits of living things; they are cellless and don't fall under the category of bacteria because they exclusively multiply inside the body, whereas bacteria do so everywhere.To learn more about Viruses, refer to the following link:
https://brainly.com/question/25236237
#SPJ4
Thyroid hormone (a small iodinated amine) enters target cells in a manner similar to ________.
Thyroid hormone (a small iodinated amine) enters target cells in a manner similar to steroid hormones.
What is the thyroid hormone?Thyroid hormone is a peptide hormone secreted by the thyroid gland which serves to maintain metabolic rate and it enters into the cells by diffusion in a similar manner to steroid hormones (it is for that reason thyroid hormone is classified as steroid-like hormone).
In conclusion, thyroid hormone (a small iodinated amine) enters target cells in a manner similar to steroid hormones.
Learn more about the thyroid hormone here:
https://brainly.com/question/13065085
#SPJ1
Diatoms, such as members of the genus navicula, belong to which major lineage of eukaryotes?.
Diatoms, such as members of the genus navicula, belong to stramenopila major lineage of eukaryotes.
Stramenopile:- Stramenopiles are group of organisms, that consists of stiff tripartite external hairs and flagella. Stramenopile is also known as heterokonts. It has both photosynthetic and nonphotosynthetic cells. Diatoms, chrysophytes, brown algae and some protozoa are included in the stramenopila kingdom. As stramenopiles are neither fungi, animals nor plants, they are eukaryotes.
Navicula:- Navicula is a genus of diatom algae, whose cells are boat-shaped.
Thus we can conclude that, diatoms such as members of the genus navicula, belong to stramenopila major lineage of eukaryotes.
To know more about eukaryotes refer below link:
https://brainly.com/question/11351358
#SPJ4
Which term is used to describe an objectively identifiable aberration of the disease?
a. syndrome
b. symptom
c. sign
d. stage
Option (c) sign is the correct answer.
The term used to describe an objectively identifiable aberration of the disease is sign.
What does a sickness sign entail?Any objective proof of a sickness, as opposed to a symptom, which is always a subjective indication. For instance, obvious blood in the stool is an indication of sickness that can be identified by the patient, doctor, nurse, or another person.What are the many types of aberration?An aberration is a flaw in how a lens concentrates the light it gathers. Because the light rays travelling through a lens don't converge at a single spot, aberrations happen. Aberrations come in a variety of forms, and they can impact an image's sharpness, focus, magnification, distortion, and color.To learn more about aberration visit:
https://brainly.com/question/1285771
#SPJ4
Drag each tile to the correct location on the table.
Along with the kidneys, the ureters, bladder, and urethra make up the urinary system. Match each function or description to the appropriate structure.
hollow, saclike organ
connected to the
kidneys
narrow duct that
connects to the
bladder
muscular ducts that
connect the kidneys
and bladder
transports urine by
peristaltic action
from the kidney to
the bladder
transports urine from
the bladder to outside
of the body
holds urine
The organs of the urinary system include the kidneys, renal pelvis, ureters, bladder, and urethra. The body absorbs nutrients from food and converts them into energy.
Ureters are small tubes or conduits that connect the bladder and kidneys. Urine travels from the kidneys through the ureters to the bladder. The urethra is a tubular passage that connects the bladder to the outside of the body and allows urine to exit the body.
The urinary system consists of the kidneys, ureters, bladder, and urethra. The kidneys make urine and are responsible for other functions attributed to the urinary system. The ureters carry urine from the kidneys to the bladder. The bladder is a temporary reservoir for urine.
Learn more about The kidney here:-https://brainly.com/question/26062461
#SPJ9
An interdisciplinary science involving biologists, chemists, and biochemists in the study of genes and the proteins they encode is called ______.
Molecular biology is an interdisciplinary science that involves biologists, chemists, and biochemists in the study of genes and the proteins they encode.
In Molecular biology, we read mostly about the nucleic acids (DNA & RNA) and proteins which are essential for life processes. This emerged as a different field in the 1930s and developed out of biochemistry, genetics, and biophysics and today it remains closely associated with these fields only. Its application is used in the materials industry, in the development of new energy sources, in forensic engineering, and in improvement of the food and energy industry. It helps in collecting and understanding data on the genome sequence of living organisms.
Read more about molecular biology:
brainly.com/question/7306674
#SPJ4
Taxol is a chemotherapeutic drug that will attach to the spindle fibers and prevent their function thereby killing the cancer cell. which process does this drug prevent from occurring?
Taxol is a chemotherapeutic drug that will attach to the spindle fibers and prevent their function thereby killing the cancer cell. The Anaphase process is avoided from occurring by this drug.
What is Taxol?Taxol (chemical name: paclitaxel) is a anti-cancer chemotherapy drug used to treat cancer, blocks cancer cell growth by stopping cell division, resulting in cell death. It is used in treatment of breast cancer, ovarian cancer, non-small cell lung cancer, pancreatic cancer, and AIDS-related Kaposi sarcoma.
Taxol interferes with anaphase process by inhibiting the shortening of the microtubules attached to the sister chromatids, so the chromatids do not separate and hence, will not move to the ends of the cells. Ultimately the cell division does not take place.
To learn more about Taxol, click the given link https://brainly.com/question/15860122
#SPJ4
According to ecological theory, the people closest to a developing child represent his or her?
Microsystem
According to ecological theory, the people closest to a developing child represent his or her microsystem.
What is a child's microsystem development?The immediate surroundings of a child is referred to here, including their family, playgroup, neighborhood, and peer group. Meosystem: This term describes the links that young children establish between their immediate surroundings, such as their home and playgroup.Which exemplifies a child's microsystem the best?The family, school, religion, peer groups, and neighborhoods are a few examples of microsystems. The closest stimuli to a child that have a direct impact on their psychosocial development are called microsystems.How does a child's microsystem effect them?Children do not often connect with significant adults, which is essential for development. The ecological hypothesis states that if the connections in the immediate microsystem fail, the youngster will lack the resources to investigate other areas of his surroundings.To learn more about microsystem visit:
https://brainly.com/question/23006324
#SPJ4
What are the focus areas of the to err is human recommendations? (select all that apply.)
TheThe focus areas of recommendation are Enhance knowledge and leadership regarding safety , identify and learn from errors , set performance standards and expectations for safety and implement safety system within health care organizations.
What is the point of err in human ?The phrase" to point err human" means that human beings make mistakes and emphasize the quality of forgiveness and kindness. To err is human and to forgive is divine , which means it is natural for human beings to make mistakes as they are not perfect.
So there are four focus areas knowledge and leadership , Identity and learning from mistake.
to learn more about To err is human click here
https://brainly.com/question/11254328
#SPJ4
The __________ is located under the forebrain and midbrain. a. forebrain b. midbrain c. hindbrain d. brainstem please select the best answer from the choices provided a b c d
Answer:
it's C
Explanation:
The dense fibrous connective tissue portion of the skin is located in the reticular region of the dermis.
a. true
b. false
Yes, it is true that the dense fibrous connective tissue portion of the skin is located in the reticular region of the dermis.
The deeper layer of the dermis is known as the reticular layer. It is made up of collagen and elastic fiber-containing thick, uneven connective tissue. Adipocytes, hair follicles, sebaceous glands, sudoriferous glands, and nerves are also present in the reticular layer. The dermis, also known as the corium, is a layer of skin that lies between the epidermis (along with which it forms the cutis) and subcutaneous tissues. It shields the body from strain and stress and is largely formed of dense, wavy connective tissue. It is divided into two layers: the reticular dermis, which is thicker and deeper, and the papillary area, which is superficial and adjacent to the epidermis.
The dermis and epidermis are securely joined by a basement membrane. The structural components of the dermis are collagen and elastic fibers.
Learn more about dermis here: https://brainly.com/question/893214
#SPJ4
Suppose that 100 pollen grains land on a stigma, and 50 mature seeds are formed in the fruit. what does this indicate about the pollination process and success?
100 pollen grains land on a stigma, and 50 mature seeds are formed in the fruit, it indicates 50%success: 50 sperm fertilized 50 eggs, and 50 sperm fused with 50 polar nuclei.
According to the question,
The number of mature seeds are formed in the fruit = 50 (Given)
The number of pollen grains land on a stigma = 100 (Given)
We know that, one male gamete will fuse with one egg nuclei to form zygote. In the double fertilization process, one gamete fuses with polar nuclei and forms endosperm. The other male gamete fuses with the egg to form zygote then it gives rise to seeds.
∴ 50 male gametes fuse with egg cells to form 50 seeds and other 50 male gametes fuse with 100 polar nuclei.
Thus we can conclude that, 100 pollen grains land on a stigma, and 50 mature seeds are formed in the fruit, it indicates 50%success: 50 sperm fertilized 50 eggs, and 50 sperm fused with 50 polar nuclei.
To know more about pollination process refer below link:
https://brainly.com/question/28357630
#SPJ4
8. Gene's doctor taps him on the knee and his leg kicks out
(straightens). What motion did his leg make?
Gene's doctor taps him on the knee and his leg kicks out. The motion of his leg makes deep tendon reflex (DTR).
Lower motor neuron lesions have varying effects on tendon reflexes, also referred to as myotatic reflexes. The efferent limb of a tendon reflex will not function if a muscle loses all motor neuron innervation. Lower motor neuron lesions are frequently accompanied by hypoactive or absent reflexes.
This is frequently caused by the simultaneous activation of muscle spindle sensory afferent fibers inside peripheral nerves or roots, though.
Muscle stretch reflexes, which are deep tendon reflexes, are carried out by neuromuscular spindles. They are the only objective aspect of the clinical assessment. The patient may intentionally change their responses to the motor and mental examinations, their performance on sensory tests, or even their stride, for a number of different reasons.
To learn more about tendon reflexes refer to:
https://brainly.com/question/28289495
#SPJ9
The very simplest members of the order pythiales (oomycota) have a _____ thallus (chytridlike) that may occur entirely within the living host.
The very simplest members of the order pythiales (oomycota) have a monocentric, holocarpic thallus (chytridlike) that may occur entirely within the living host.
The Oomycota are a huge and diversified collection that includes two main (class level) clades, the Saprolegniomycetes and Peronosporomycetes and other early diverging classes, the majority of which are basic holocarpic creatures with no mycelial organization. The early-diverging orders include the marine seaweed parasites Eurychasmales and Olpidiopsidales, the worm infecting Haptoglossales, and the crab infecting Haliphthorales. The Saprolegniomycetes, which include the orders Atkinsiellales s.lat., Leptomitales, and Saprolegniales, are usually saprophytes or parasites of invertebrates and, on rare occasions, vertebrates such as fish and amphibians.
Peronosporomycetes have a variable thallus shape, ranging from a mycelium of hyphae (similar to Mycota hyphae, with tip growth) to allantoid or ellipsoid (holocarpic) cells, or monocentric and eucarpic thalli with an assimilative system formed of branching rhizoids. Obligate parasites can be endobiotic (completely contained inside a single host protoplast), intracellular (some hyphae entering the protoplasts of a host thallus), or intercellular with specialized side branches (haustoria) that pierce the host cell walls but not the protoplasts.
To learn more about oomycota. Click, https://brainly.com/question/1166724
#SPJ4
Through which cellular interactions are the cells of the stratum basale firmly attached to the plasma membrane?
The stratum basale is a single layer of cuboidal basal cells attached to the basement membrane by hemidesmosomes that contain integrins. Adjacent cells are attached by desmosomes that contain cadherins
What is plasma membrane ?The membrane that divides the interior of the cell from the external environment is known as the plasma membrane, sometimes known as the cell membrane, and it is present in all cells. A cell wall is affixed to the plasma membrane on the exterior of bacterial and plant cells.
The inner cell organelles and the exterior environment are physically separated by the plasma membrane. Only a limited range of molecules can enter and exit the cell through the selectively permeable plasma membrane.Learn more about Plasma membrane here:
https://brainly.com/question/734740
#SPJ4
The process of using a carrier to passively transport a solute through a membrance down its concentration gradient is known as?
The process of using a carrier to passively transport a solute through a membrane down its concentration gradient is known as facilitated diffusion.
What is cell membrane?The cell membrane, a biological barrier, encloses each cell's interior from the outside world.A lipid bilayer that comprises of two phospholipid layers with cholesterol dissolved in them in between makes up the cell membrane.Because of its configuration, the membrane may remain fluid at various temperatures.Membranes are composed of membrane proteins, such as integral proteins that cross the membrane and serve as membrane transporters and peripheral proteins that only cling to the outside membrane of the cell and serve as enzymes to assist the organism in interacting with its environment.The glycolipids contained in the outer lipid layer serve a similar purpose.The cell membrane controls the movement of substances into and out of cells and organelles because it is only permeable to ions and organic molecules.
To learn more about membrane , refer to the following link:
https://brainly.com/question/1768729
#SPJ4
Low-density lipoprotein is brought into the cell by receptor-mediated endocytosis. True or false?.
Low-density lipoprotein is brought into the cell by receptor-mediated endocytosis is referred to as true statement.
What is Low-density lipoprotein?This is also referred to as bad cholesterol because it transports cholesterol in the blood thereby leading to the clogging of the blood vessels and may cause different types of diseases such as high blood pressure etc.
This type of lipoprotein transports all fat molecules around the body in extracellular water and are brought into the cell by receptor-mediated endocytosis which imports the macromolecules from the extracellular fluid thereby making it the correct choice in this context.
Read more about Low-density lipoprotein here https://brainly.com/question/841110
#SPJ1
Which type(s) of bond(s) is (are) found between atoms within hydrocarbon molecules?
Answer:
hydrogen bondingcovalent boundingVander waals boundingmetallic boundingionic boyionic boundingWhen forming a semi-solid gel such as gelatin, which molecules does the process of protein coagulation entrap?.
Answer:
When forming a semi-solid gel such as gelatin, water molecules does the process of protein coagulation entrap.
Explanation:
Since the proteins that make up gelatin, which is mostly generated from collagen, are significantly bigger than typically dissolved different molecules but are uniformly distributed all across the water, gelatin is just a colloid once it is dissolved in liquid. It is particularly a solution, a colloid that consists of solid particles spread throughout another material. The distributed phase refers to the inferior component of a colloid, in this example gelatin. Gelatin is just a liquid while it's heated and turns into a gel when it's cold. Another sort of colloid is a gel, which is created when a liquid is spread by a solid. The gelatin gel may be made liquid again by heating it. Furthermore, any colloid contains extremely big particles in solution. Since organic molecules may be much bigger than the majority of inorganic molecules, colloidal particles are particularly prevalent in biomolecules.
You can learn more from the following link:
https://brainly.com/question/28504048
#SPJ4
At a chemical synapse, the release of neurotransmitter occurs in response to a graded depolarization of the synaptic terminal. True or false?.
Answer:
True: Neurotransmitters are released at chemical synapses in reaction to a gradual depolarization of a synaptic terminal.
The basic building block of the neurological system is indeed the neuron. A junction known as a synapses connects neurons in the neurological system. Neurotransmitters, which are released into synapses by neurons, are used for communication.
A stimulus that causes this nerve's resting membrane potential activates a presynaptic neuron. An action potential is then carried by the presynaptic nerve. The chemicals called neurotransmitters are being secreted into synapses together with action potential after passing via synaptic terminals.
Synaptic terminals get depolarized as a response of action potentials travelling thru the axon at those terminals. Depolarization causes the synaptic ion channels to open. In light of this, we may state that within a chemical synapse, neurotransmitters are released in response to a gradual depolarization of the synaptic terminal.
You can learn more at:
https://brainly.com/question/26387085
#SPJ4