Stabilization of the unique coiled structure of an alpha helix in a protein is mostly attributed to.

Answers

Answer 1

Answer: Hydrogen bond from the carbonyl oxygen of one amino acid to the amino group of second amino acid.

Explanation:


Related Questions

In adults, which bone marrow is limited to the axial skeleton, pectoral and pelvic girdles, and proximal heads of the humerus and femur?

Answers

Red bone marrow in adults is only found in the axial skeleton, the pectoral and pelvic girdles, and the proximal heads of the humerus and femu.

What is bone marrow?

The spongy substance found inside a few of the body's bones, notably the hip and thigh bones, is called bone marrow. Stem cells, which are immature cells, are found in bone marrow. Blood cells and healthy bone marrow are essential for human survival. A marrow or cord blood transplant may be the best course of treatment when a disorder or illness damages bone marrow to the point where it is no longer able to function properly.

Red bone marrow is limited to the axial skeleton, pectoral and pelvic girdles, and proximal heads of the humerus and femur in adults.

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Which one of the following organisms has a cell wall?
a. fungi
b. mycoplasmas
c. protoplasts
d. animal cells

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A cell wall is a structural layer found just outside the cell membrane that surrounds some types of cells.

Fungi have cell wall , which is made up of chitin.

What are the functions of cell wall?

A cell wall is a structural layer found just outside the cell membrane that surrounds some types of cells. It can be tough, flexible, and rigid at times. It provides structural support and protection to the cell, as well as acting as a filtering mechanism.

The main functions are cell wall is to provide structural strength and support, and also provide a semi permeable surface for molecules to pass in and out of the cell.  It maintains the shape of the cell, protect it from burst out, provide protection against pathogens and regulates intercellular transport .



Protoplast is a living protoplasm of a living plant  or bacterial cell wall has been removed, mycoplasma is  Bacteria who lacks cell wall, animal cells also lack cell wall only Fungi have cell wall which made up of chitin.

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When jeremy smith was in the shower, the hot water ran out. the cold water caused the hairs on his skin to stand up. this body response to cold is known as ________.

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This body response to cold is known as piloerection.

What is piloerection?

The involuntary contraction of tiny muscles at the base of hair follicles as a reflexive response of the sympathetic nervous system, particularly in response to cold, shock, or fear, causing an erection or bristling of hairs.

As mentioned in the question, Jeremy Smith was in the shower, the hot water ran out and then she used cold water on her skin. the cold water caused the hairs on his skin to stand up. this body response to cold is known as piloerection.

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What are the primary molecules making up plasma membranes in cells? group of answer choices

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The  primary molecules of the plasma membrane are lipids , protein , cholesterol and carbohydrates groups.

What is the plasma membrane?

The plasma membrane also called the cell membrane, is the membrane found in all cells that seperate the interior of the cell from the outside environment. Plasma membrane provides protection for a cell. It also provides a  fixed environment inside  the cell.

The primary components of the plasma membrane are lipids , protein and carbohydrates groups that are attached to some of the lipids and proteins. A  phospholipid is a lipid made by glycerol ,two fatty acids and phosphate linked head group.

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In 3-5 sentences, explain how the rate of photosynthesis or cellular respiration can be measured using products or reactants.(4 points)

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The rate of photosynthesis or cellular respiration can be determine  by observing the rate at which oxygen is produced or carbon dioxide is produced respectively.

The reaction is an endothermic reaction type because  the temperature of the surroundings decreases.

What is the rate of a reaction?

The rate of a reaction can be  defined as the rate at which reactants  are consumed or the rate at which products are formed in a reaction.

The rate of photosynthesis or cellular respiration can be determine  by measuring  the rate at which oxygen is produce or carbon dioxide is produced .

What is cellular respiration?

Cellular respiration is a group  of chemical reactions that break down glucose to form  ATP, which may be used as energy to power many reactions in  the body. There are three  steps of cellular respiration: glycolysis, the citric acid cycle, and oxidative phosphorylation.

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The name that the manufacturer uses in marketing a drug is called the _____ name.

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It is called the
generic name

Which type of anterior pituitary cell secretes melanocyte stimulating hormone (msh)?

Answers

The anterior pituitary cell secretes melanocyte stimulating hormone (msh) is corticotrophic cell.

What is pituitary gland?

Pituitary gland is known as master's gland because it secretes a number of hormones that are very essential for the growth of the body. Hormones are defined as chemical substances that function as a messenger molecules in the body.

Hormones are produced in a particular part of the body and later travelled to the other parts of the body.

Testosterone is a hormone which is responsible for physical relationships and play a vital role in body. In men it plays a vital role in fat distribution, muscle mass and in the production of sperm as well as red blood cell.

Therefore, the anterior pituitary cell secretes melanocyte stimulating hormone (msh) is corticotrophic cell.

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One of the more serious diseases of the body is renal failure. renal failure occurs when the?

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Renal failure occurs when the Kidney's fail to function ar required.

What is renal failure?When your kidneys are suddenly unable to filter waste from your blood, you experience acute renal failure. Dangerous levels of wastes may build up when your kidneys lose their filtering capacity, and your blood's chemical composition may become out of balance. Acute kidney failure, which is often referred to as acute renal failure or acute kidney damage, occurs suddenly, typically within a few days. The majority of cases of acute renal failure occur in patients who are already hospitalized, particularly in severely ill patients who require intensive care. Acute renal failure is serious and needs aggressive care. Acute renal failure, however, might be curable.

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T7. the presence of a membrane-enclosed nucleus is a characteristic of what? a. bacteria be. eukaryotic cells c. all living organisms d. prokaryotic cells

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The presence of a membrane-enclosed nucleus is a characteristic of (b) eukaryotic cells.

Eukaryotic cells are the advanced cells that have fully developed true nucleus and all the cell organelles. The cell organelles are mitochondria, chloroplast, endoplasmic reticulum, lysosome, etc. These cells have 80S ribosomes. The organisms that possess a eukaryotic cell are: protozoans, plants, fungi and animals.

Nucleus is the double membranous structure that stores the genetic material. The membrane of the nucleus has small pores that regulates the traffic of substances crossing the membrane. It also regulates all the activities of the cell. It is also called the central unit of the cell.

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A commensal bacterium?

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Answer

Commensal bacteria stimulate the immune system of the host to enhance defense mechanisms that block pathogen entrance and colonization.  Moreover, by creating antimicrobial properties and signals & fighting with other bacteria for food and attachment sites, such bacteria might effectively limit the spread of respiratory infections. In healthy animals, the majority of commensal bacteria live inside the intestine's lumen, although some are also found in immediate contact with the intestinal epithelium. New studies have shown that commensal bacteria may live in stable stomach lymphoid tissues. But every once in a while, especially when they travel to other areas and leave their natural habitat, these commensal bacteria might cause illness. In both old and very and also in young persons, it can spread throughout the rest of the body, causing pneumonia, infection, and meningitis.

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Are positive feedbacks necessarily good things? are negative feedbacks necessarily bad things? explain.

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No, it is not necessary that positive feedback would only for good thing and negative feedback would be only for bad things.

Why is feedback really important?

Feedback improves learner confidence, motivation to learn and ultimately, a learner's attainment. Feedback is about listening actively, taking the time to analyze and then thinking of  the best possible solution to perform better.

Positive feedback helps in motivation, increase confidence level and shows people you value them and from negative feedback you can improve your self ,it tells about where you have done mistake so you can improve yourself.

Constructive criticism at work is crucial because flourishing workplaces depend on efficient communication. Feedback not only boosts employee morale but also teaches us more about our personalities, our traits, our flaws, how we behave, and how others are affected by what we do.

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Describe two kernel data structures in which race conditions are possi- ble. be sure to include a description of how a race condition can occur.

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Nonpreemptive kernels have a single active process at a time. Therefore, race situation scenarios are not possible in nonpreemptive kernels. If preemptive is properly designed to ensure that shared kernel data is devoid of race circumstances, it is race-free.

An illustration of a race condition is when a data structure updates a list of open files in a system when a new file is closed or opened. In this scenario, opening two files simultaneously would cause the list to receive two separate updates, which could lead to race situations.

Difference between preemptive and nonpreemptive kernaals ?

It is a procedure that might be immediately changed. In comparison to non-preemptive kernels, it is more suited for real-time programming. Preemption is typically permitted, even in kernel mode. Responsive time is deterministic and is more responsive as compared to non-preemptive kernel.

It is a process that keeps running indefinitely until it has handled all execution handlers or willingly gives up the CPU. Compared to a preemptive kernel, it is less suited to real-time programming. Preemption of kernel mode processes is typically not allowed. In comparison to a preemptive kernel, response time is less responsive and nondeterministic.

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An estimate of the proportion of trait variability in a population that is determined by variations in genetic inheritance is termed?

Answers

Heritability ratio

An estimate of the proportion of trait variability in a population that is determined by variations in genetic inheritance is termed as heritability ratio.

What is variations in genetic inheritance?Variants that are inherited (or hereditary) are present in almost all of a person's cells throughout their lifetime and are passed from parent to kid. Because the parent's egg or sperm cells, which are also known as germ cells, contain these variants, they are also referred to as germline variants.

What is heritability ratio?Heritability, which varies from 0 to 1, is the proportion of genetic variance to phenotypic variance. High heritability levels of 0.5 indicate that, on average, half of the variations in animal characteristics are inherited. Low values of around 0.1 indicate that the majority of the variations are not genetic.

The significance of a high heritability ratio:Heritability quantifies a trait's genetic influence. If the heritability is high, close to 1, it means that most of the variation in a variable among individuals can be attributed to genetics; if the heritability is low, close to 0, it means that most of the variation is not genetic.

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Some properties of neoplastic cells are the same as the properties of normal cells, including?

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Some properties of neoplastic cells are the same as the properties of normal cells, including mitosis.

Neoplastic cells are those that gain the property of dividing uncontrollably. These cells form aggregate of cells also called the tumor, which if gain the property of metastasis, become cancerous. If they are present at one place only, they are termed as benign.

Mitosis is the form of cell division. It is also called equational division. The genetic material is passed as it is from the parent cell to the daughter cells. There are 4 phases in mitosis. These are: prophase, metaphase, anaphase and telophase. All the somatic cells in humans undergo mitosis.

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What is the difference between heredity and mutation

Answers

here is the answer

Explanation:

Once an acquired mutation is transmitted along throughout generations, it becomes hereditary.

Which epithelium is best suited for resisting abrasion and preventing pathogen entry into deeper tissues?

Answers

Epithelial cells best suited for resisting abrasion and preventing pathogen entry into deeper tissues are stratified squamous epithelial cells.

Stratified cells are layered cells, squamous cells are flat and epithelial cells are covering cells. Therefore, stratified squamous epithelial cells are flattened, layered covering cells arranged on a basement membrane.

Stratified squamous epithelial cells have very little to no intercellular spaces which prevent pathogen from passing through and entering into the deeper tissues. They are well suited for resisting abrasion because the uppermost layers are subsequently sloughed off and replaced before the basement membrane is exposed. These types of cells form the outermost layer of the skin.

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When the membrane is at the potassium equilibrium potential, in which direction (in or out) is there a net movement of potassium ions?

Answers

The balance between the chemical and electrical forces pushing potassium through potassium channels and across the membrane is represented by the potassium equilibrium potential. At the equilibrium potential of potassium, which is -80mV, there is no net movement of potassium ions.

At potassium's equilibrium potential, what happens?At equilibrium, the electrical potential gradient across the membrane precisely balances the gradient of K+ concentration. There is no net migration of K+ from one side to the other, despite the fact that K+ ions continue to traverse the membrane via channels.

How does potassium diffuse in order to influence the membrane potential?Potassium ions will flow down their concentration gradient, or towards the exterior of the cell, because the membrane is permeable to them. Although the membrane is not permeable to sodium, there is a concentration gradient that favors sodium diffusion in the opposite direction.

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3.05 x 10–3 equals what

Answers

Answer:

0.00305

Explanation:

Calculate 10 to the power of −3 and get  1/1000Multiply 3.05 and 1/1000 to get  61/2000061/2^-5.5^-4 = 0.00305

Hope it helps!!!

;}

Answer:

0.00305

Explanation:

Given the following question:

Since the exponent is negative, we move the decimal point to the LEFT three times.

3.05 * 10^-3
Exponent is negative:
.0.0.3.05
= 0.00305

Which means your answer is "0.00305."

Hope this helps.

The deposits of chalky fossils that built the white cliffs of dover were formed by?

Answers

The deposits of chalky fossils that built the white cliffs of dover were formed by Foraminiferans.

what are fossils?Any remains, impression, or evidence of living things from earlier geological times is called a fossil. Examples include fossil bones, shells, exoskeletons, animal or microbiological imprints in rocks, amber-preserved artifacts, hair, petrification. wood, oil, coal and traces of DNA. The fossil record is the collection of all fossils. The study of fossils, including their age, how they formed, and their evolutionary significance, is called paleontology. If a specimen is over 10,000 years old, it is generally considered a fossil. The oldest fossils date from3.48 and 4.1 billion years.The geologic and relative chronology of the  various fossils was recognized in the 19th century after the discovery that specific fossils were associated with rock layers.

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Endocrine system: the endocrine system is made up of the cells, tissues, and organs that secrete hormones into body fluids such as the blood stream. what is its function?

Answers

Function: -
The advancement of the central nervous system, the growth and operation of the reproductive organs, and also the metabolism and blood sugar level, are all regulated by the endocrine system, which is made up of all the various hormones produced by the body from conception and via adulthood and into old age.

Metabolism- The alterations in an organism's or a cell's chemistry. These modifications generate the ingredients and energy that cells and organisms require to develop, procreate, and maintain health. Anabolism and catabolism are components of metabolism.

Hormones- Chemicals called hormones function in the body as messenger molecules. They are created in one area of the body and then go to other areas where they assist regulate how cells and organs function.

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The cell wall of plants is
composed of what material?
A. cellulose
B. chitin
C. peroxisomes

Answers

answer : cellulose

The cell wall is composed of a network of cellulose microfibrils and cross-linking glycans embedded in a highly cross-linked matrix of pectin polysaccharides.

(q004) which subfield of biological anthropology uses the fossil record to examine the anatomy and behavior of our relatives in the past?

Answers

Paleoanthropology uses the fossil record to examine the anatomy and behavior of our relatives in the past.

What is Paleoanthropology?

Paleoanthropology, also known as paleo-anthropology, aims to comprehend the earliest stages of anatomically modern humans, also known as hominization, by reconstructing evolutionary kinship lines within the family Hominidae using biological evidence (such as petrified skeletal remains, bone fragments, and footprints) (such as stone tools, artifacts, and settlement localities).A single field combines the study of primatology, palaeontology, biological anthropology, and cultural anthropology.As science and methodology advance, genetics is becoming increasingly significant, particularly when it comes to analysing and contrasting DNA structure as a vital tool for determining the evolutionary kinship lines of related species and genera.

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Mendelian inheritance, in which each the alleles of two (or more) different genes get sorted into gametes independently of one another, is the principle of'?

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Mendel's law of independent assortment states that the alleles of two (or more) different genes get sorted into gametes independently of one another. In other words, the allele a gamete receives for one gene does not influence the allele received for another gene.

Unlike the biological species concept, the morphospecies concept relies on? phenotype. behavior. physiology. offspring.

Answers

The correct option is (a) Phenotype

Unlike the biological species concept, the morphospecies concept relies on phenotype.

What is morphospecies?The oldest species notion is the morphological or morphospecies concept, which uses variations in morphological features to define species. Morphospecies include the division of taxa based on readily apparent morphological characteristics rather than the identification of species per se. the use of morphospecies in place of taxonomy species for the purpose of preserving and monitoring the environment. Varying natural communities had different divergence thresholds for phylospecies to correspond to morphospecies, which may have significant ramifications for how metagenomics techniques evaluate diversity.

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Mucus is moved along the lining of the trachea by extensions from cell membranes known as:_________

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The cilia, which are projections from cell membranes, are responsible for moving mucus along the lining of the trachea.

You will find cilia, which are tiny, hair-like structures, in the inner layer of the trachea. Cilia move rhythmically to remove mucus from your trachea so you may either ingest it or expel it. You have a muscle called the trachealis between every ring of cartilage in your trachea. On the outside of airway cells, cilia are movable, tiny projections that resemble fingers. The cilia that line the airways aid in raising and expelling mucus from the lungs. breathing epithelium. Mucus is secreted by the goblet cells, covering the tips of the ciliated cells in a protective layer. The cilia's regular, coordinated beating sweeps any debris attached to the mucus up and out of the airways.

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Which of the following joins amino acids together

Answers

Answer: peptide bonds

Within a protein, multiple amino acids are linked together by peptide bonds, thereby forming a long chain. Peptide bonds are formed by a biochemical reaction that extracts a water molecule as it joins the amino group of one amino acid to the carboxyl group of a neighboring amino acid.

Explanation:

Answer:

peptide bonds

Explanation:

Within a protein, multiple amino acids are linked together by peptide bonds, thereby forming a long chain. Peptide bonds are formed by a biochemical reaction that extracts a water molecule as it joins the amino group of one amino acid to the carboxyl group of a neighboring amino acid.

Enzymes that use oxidation to convert food materials into energy are found in sausage-shaped structures called __________.

Answers

Enzymes that use oxidation to convert food materials into energy are found in sausage-shaped structures called: Mitochondria.

The majority of the chemical energy required to drive a cell's metabolic operations is produced by mitochondria, which are membrane-bound cell organelles (mitochondrion, singular). Adenosine triphosphate, a tiny molecule, serves as a storage container for the chemical energy generated by the mitochondria (ATP).

In addition to producing bioenergy, mitochondria also play important roles in apoptosis, autophagy, heme biosynthesis, oxygen sensing, and calcium homeostasis.

They are tubular-shaped organelles bound by double membranes. The abrupt structural changes from a tubular to a globular shape, known as mitochondrial fragmentation, are brought on by the loss of mitochondrial membrane potential. The globular mitochondria that arise are known as swollen or ring/doughnut mitochondria.

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Identify the location of the majority of triglyceride digestion.

Answers

The location of the majority of triglyceride digestion occurs is small intestine.

Where does the majority of the digestion of triglycerides take place?Lingual lipases, which are released by tongue glands to start the digestion of triglycerides, cause lipid digestion to start in the oral cavity. Gastric and lingual enzymes both contribute to continued digestion in the stomach.

Where are the locations where triacylglycerol fat is metabolized?The mouth is the entry point for lipid digestion, which continues in the stomach and concludes in the small intestine. Lipase is the name of an enzyme that aids in the digestion of triacylglycerol. These are proteins that catalyze the conversion of triglycerides into a mixture of free fatty acids and acylglycerols through partial hydrolysis.

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What is one reason the presence of iridium leads scientists to hypothesize that a meteorite impact caused the mass extinction of dinosaurs?.

Answers

Iridium content in asteroids and comparable extraterrestrial entities is higher than that of the Earth's crust.

One reason the presence of iridium leads scientists to hypothesize that a meteorite impact caused the mass extinction of dinosaurs and Iridium content in asteroids and comparable extraterrestrial entities is higher than that of the Earth's crust.

Asteroids and other such extraterrestrial bodies have higher iridium contents than the Earth's crust, therefore the Alvarez team reasoned that the iridium layer must be made of the dust from the vaporized meteor. This led them to believe that an asteroid impact caused the extinction.

What is one explanation for iridium's presence?The Earth's crust contains an extremely small layer of iridium. This is supposed to have been brought on by a big meteor or asteroid striking the planet. Iridium concentrations are higher in meteors and asteroids than in the crust of the Earth. The iridium would have been dispersed over the earth by the impact's massive dust cloud.

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_________ involves reconciling underlying differences so that issues are resolved to the mutual benefit of all parties.

Answers

Collaboration involves reconciling underlying differences so that issues are resolved to the mutual benefit of all parties.

The collaboration conflict situation is a type of solution in which cooperation is done between the parties in order to solve conflicts. The opponent parties realize that in order to make the situation work, collaboration needs to be done that can mutually benefit the opponent parties.

Hence, through the collaboration system, the opponent parties reconcile their issues and differences and come up with terms that are of mutual benefit.

The system of collaboration is a more peaceful one and all the disputed parties feel heard. They can settle on a mutual agreement and come to terms that can benefit them.

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