A small generic section of the primary structure of an alpha helix is given below
-amino acid1-amino acid2-amino acid3-amino acid4-amino acid5-amino acid-6-amino acid7-
A) Which amino acid residue's backbone forms a hydrogen bond with the backbone of the seventh(7th) residue?
B) which of the following peptide segments is most likely to be part of a stable alpha helix at physiological pH?
A) -Lys-Lys-Ala-Arg-Ser-
B) -Gly-Arg-Lys-His-Gly-
C) -Pro-Leu-Thr-Pro-Trp-
D) -Gly-Gly-Gly-Ala-Gly-
E) -Glu-Glu-Glu-Glu-Glu-
F) -Glu-Leu-Ala-Lys-Phe-
G) -Tyr-Trp-Phe-Val-IIe-

Answers

Answer 1

Answer:

The correct answers are "amino acid3" and option F) "-Glu-Leu-Ala-Lys-Phe-"

Explanation:

The alpha helix is one the most common secondary structures of proteins, characterized by seven residue repeating units that alternate hydrophobic and hydrophilic residues. This sequence match with the peptide segment "-Glu-Leu-Ala-Lys-Phe-", where glutamic acid (Glu) is hydrophilic, leucine (Leu) is hydrophobic; and it does not contain amino acids that disrupt alpha helix such as proline and glycine. The alpha helix structure is stabilized by hydrogen bonds within the residue's backbone, one of them stablished between the third and the seventh amino acid residues.


Related Questions

Which of the following sentences best describes what happened to the pansies receiving liquid fertilizer?

Answers

Answer: They grew more during week 1 than any other week.

Explanation:

It reads it on the graph and I also just answered the question.

Answer:

They grew more during week 1 than any other week.

Explanation:

Edge 2020-2021

For the following questions, please fill in the blank with the correct number of chromosomes (e.g. 4). Please do not spell out the number (e.g. four) or include any kind of punctuation (e.g. 4.). In an organism where the diploid number of chromosomes is 2N=16, how many chromosomes would you expect to find in cells that are in G2 of the cell cycle?

Answers

Answer:

Double number of chromosome.

Explanation:

There are 16 chromosomes in G2 phase of the cell cycle because in G2 phase, the replication of DNA occurs which doubles the number of chromosome. It is a gap phase present between replication of DNA and mitosis so it contains 16 number of chromosomes in the cell. After mitosis, the chromosomes number distributed equally among daughter cells.

the diagram shows the general structure of a lipid l, which consists of two main parts.
which part is circled?
a- alcohol group
b- fatty acid
c- carboxyl group
d- unsaturated lipid

Answers

Answer:

The correct answer is - carboxyl group.

Explanation:

Lipids are one of the major macromolecules that are made up of fatty acid and carboxyl groups as two main parts of the molecules. The most common type of lipid is formed with the glycerol associated with the fatty acid chain.

In the provided structure the circled part is the carboxyl group with the long fatty acid chain. However, glycerol belongs to the alcohol group.

Thus, the correct answer is - carboxyl group.

All mail leaving a physician’s office represents the professionalism of the physician and his or her staff. A medical assistant is responsible for the written communication and makes several glaring mistakes in grammar, spelling, and punctuation. What mistakes would make the letter unmailable? What would you do to help the medical assistant correct the problem?

Answers

Answer:

Medical-related errors such as, for example, improper drug doses. These errors may be avoided by learning medical terminology, especially publications in the field of study (health care/medicine)

Explanation:

Communication errors represent a serious problem when they alter the specific instructions of therapies and treatments. These errors include mistakes in prescription, wrong times, omission, inexact drug names, improper doses, wrong dose preparation, incorrect administration, etc. A medical assistant is responsible both for writing medical documentation and for transcribing this Information. By reading publications in the field of study, a person can be rapidly trained to understand highly specific medical terminology, thereby avoiding transcription problems and communication errors.

The mistakes that will make the letter unmailable can be due to wrong drug

prescription or medical terminology used. I would ensure that the test

results are cross-examined and the appropriate terminology are explained

used.

A mail leaving the physician office must be very accurate as it deals with the

prescription of drugs to cure an ailment. A mistake in the letter can lead to

the wrong drug and dosage used by the patient which may lead to death.

The medical assistant has to ensure the test results align with the drug ,

dosage and terminology used to prevent serious issues.

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If a solution is undergoing a reaction where CO2 is being created a product, what color is the phenol red-containing solution shifting toward?

Answers

Answer:

YELLOW

Explanation:

Phenol red is a biological indicator used to monitor changes in pH. The phenol red indicator changes color ranging from yellow to pink with respect to changes in pH. In an acidic pH i.e. <7, the phenol red changes to a YELLOW color while in an alkaline pH i.e. >7, the phenol red changes to a PINK pH.

The presence of carbon dioxide (CO2) increases the hydrogen ion concentration (H+) of a solution (lowering its pH or making it acidic).

Therefore, in a reaction where CO2 is created as a product, it means the CO2 content of that solution increases. Hence, the phenol red solution will be shifting towards the YELLOW color in response to a decreasee in pH (acidic).

If a solution is undergoing a reaction where CO2 is being created a product, the phenol red-containing solution will be shifting toward the yellow color.

An indicator is an organic dye that changes its color as the pH of the solution changes. An indicator has a different color in acid, base and neutral media.

Phenol red has a yellow color in acidic medium and red color in a basic medium.

Since the production of CO2 lowers the pH of the system, the color of the solution shifts towards yellow.

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how can chimpanzees have different traits from one another

Answers

Answer: Because they have different genes.

Hope this helps! <3

Answer: They have different genes.

Explanation: took the quiz.

What type of cell organelle is only found in animal cells? (1 point)
ribosomes
vacuole
cytoplasm
lysosomes



Answers

Answer:

lysosomes

Explanation:

Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.

Among the given options only  lysosomes is  found animal cells

Animal cells can be regarded as  eukaryotic cells containing membrane-bound nucleus as well as other membrane-bound organelles.

The organelles  contained in this cell are there to carry out specific functions which the body needs for the normal functioning of the cell.

Some of the organelles that can be found in the cell of animals are:

 nucleus

cytoplasm

nucleolus

mitochondria

Lysosome.

Ribosomes, vacuole and cytoplasm can as well be found in plant cell not only in animal cell.

lysosome can be regarded as membrane-bound cell organelle which has some contains digestive enzymes in it, that helps in breaking down of excess as well as worn-out cell parts.

Therefore, among the given options only lysosomes found animal cells

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Which description is accurate regarding newspaper maps?
PLEASE HELP NOW

include isobars
are created using more complicated maps
are a good resource for long-range planning
are used by meteorologists to create other maps

Answers

Answer:

good resource for long range planning

Explanation:

let me know if its correct

Answer:

A

Explanation:

What is loveand it's causes​

Answers

When you first fall in love, you experience a rush of hormones to the brain — including oxytocin, the “love hormone,” the “pleasure hormone” dopamine, and sex hormones like estrogen and testosterone. ... This influx of hormones plays a major role in those intense feelings of fluttery excitement, attraction and euphoria.

Answer:

this is also a disease which make maid to the people

Identify the food that is a rich source of the protein gluten.


a. Mashed potato

b. Wheat bread

c. Boiled egg

d. Tapioca pudding

e. Rice cake

Answers

Answer:

boiled egg.... is the correct answer...

Gluten is a protein found naturally in grains such as wheat, barley, and rye. Wheat bread is the food that is a rich source of the protein gluten.

What exactly is gluten protein?"As humans, we have consumed gluten for as long as bread has been made." Gluten-containing foods have long provided people with protein, soluble fiber, and nutrients."Gluten, especially gluten found in whole grains, is not toxic to healthy people whose bodies can tolerate it.Gluten is a protein found in grains like wheat, barley, and rye. It acts as a binder, holding food together and giving it a "stretchy" texture, similar to how a pizza maker would toss and stretch out a ball of dough.Bread. This includes all breads (except those labelled "gluten-free"), as well as rolls, buns, bagels, biscuits, and flour tortillas.

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#SPJ2

Cell membranes are primarily made of a component that contains fatty acids. This component is most likely a...

Answers

Answer:

Lipid

Explanation:

Fatty acids fit into the category of lipids.

Answer:

Lipid

Explanation:

Briefly describe the terms "Drug" and "Addiction​

Answers

Answer:

drug: a medicine or other substance which has a physiological effect when ingested or otherwise introduced into the body.

addiction: the fact or condition of being addicted to a particular substance, thing, or activity.

Explanation:

Which is an example of a chemical change. A candle burns. A teaspoon of salt dissolves

Answers

Answer:

Both are actually chemical changes but a candle burning is a better example of a chemical change

Explanation:

Hope it helps

Answer:

It's a candle burning

Explanation:

What is true of protein glycosylation in the ER?
A. Only proteins phosphorylated on an asparagine residue become glycosylated.
B. Sugar residues are added one at a time by a series of enzymes attached to the ER membrane. C. A block of sugar residues is added to the N-terminal signal sequence, creating a common, N-linked oligosaccharide.
D. Only proteins bearing a dolichol residue become glycosylated.
E. Oligosaccharides are added by an enzyme that has its active site on the lumenal side of the ER membrane.

Answers

Answer: A. Only proteins phosphorylated on an asparagine residue become glycosylated.

Explanation: Protein glycosylation helps in proper folding of proteins, stability and in cell to cell adhesion commonly needed by cells of the immune system. The major sites of protein glycosylation in the body are ER, Golgi body, nucleus and the cell fluid.

hope this helps

Plz mark brainliest

The______is a signifiant site of absorption of water and elcrtrolytes but not of nutrients.
a. mouth.
b. stomach.
c. intestine.
d. large intestine.

Answers

Answer:

D

Explanation:

Pls check the attachment,technical reasons

How many centimeters are in 33 inches? 1 inch=2.54 cm

Answers

Answer:

There are 83.82 centimeters in 33 inches.

Answer:

1 inch=2.54 centimeters

Expansion:

Multiple by length value by 2.54

What is the independent variable in an experiment? A) The variable that remains the same throughout the experiment. B) The variable being tested in the experiment. C) The variable being measured in an experiment.

Answers

Answer:

A

Explanation:

looked it up for reassurance

16.)Which of the following properties of water help to dissolve sugar?
A.) adhesion
B.) cohesion
C.) surface tension
D.)Universal Solvent

Answers

Answer:

D

Explanation:

The property of water that helps it to dissolve sugar is the universal solvent property.

Water has the inherent attribute to dissolve a wide variety of substances due to the arrangement of the atoms that make up water molecules. The molecules of water are made up of hydrogen and oxygen, with the latter being negatively charged while the former is positively charged.

The polar arrangement gives water the capacity to be able to dissociate ionic substances into their respective positive and negative ions and also allow water to dissolve more substances than any other solvent in the world.

The correct option is D.

Write an argument that supports that a car is a LIVING organism.

Answers

Answer:

Explanation:

a car is a living organism because like all living organismkkkk it needs food/fuel in order to function.

match the mRNA sequences to their DNA sequences

Answers

No pic no answers lol

repost ur question with a pic of the problem.

thanks for the free points tho have an amazing day

for which of the following purposes would a transmission electron microscope be the best type of microscope to use?

A. studying the structures of living paramecium
B. Looking at the surface features of a virus
C. Seeing animal tissue that is visible to the naked eye
D. Viewing a cell's mitochondria in detail

Answers

Answer:

d. viewing a cells mitochondria in details

Answer:

D

Explanation:

Define clouds in your own definition and reflect it in your life​

Answers

Answer:

clouds are coulds

Explanation:

could are just clouds

) Mention two areas where CBT can be used to train people.​

Answers

Answer:

By office staffs and actors.

Explanation:

Cognitive behavioral therapy (CBT) can be used for the people who work in offices and going to stage for performing the plays. Some people in offices can't do presentation due to low confidence, fear or anxiety so Cognitive behavioral therapy is very effective for them. This therapy can also be used for the people who can't perform plays or acting in front of large audience.

PALS Which statement about hydrocortisone is NOT correct? Hydrocortisone cannot be used for adrenal insufficiency associated with septic shock. A common side effect is hyperglycemia. Hydrocortisone inhibits vascular leak due to proinflammatory mediators. Hydrocortisone is classified as a corticosteroid.

Answers

Answer:

Hydrocortisone inhibits vascular leak due to proinflammatory mediators.

Explanation:

Hydrocortisone is a corticosteroid anti-inflammatory medication capable of reducing the body's immune response, and thus reduce pain and itching. Hydrocortisone treatment is used in different health problems, including, among others, piles and itchy bottom, mouth ulcers, skin problems, adrenal insufficiency, etc. This drug is also utilized in persons that don't produce enough cortisol, a natural stress hormone. It has been shown that hydrocortisone may lead to enhancement of vascular leak, which suggests secondary effects on myocardial and endothelial cells.

Hydrocortisone inhibits vascular leak due to proinflammatory mediators.

Hydrocortisone is a corticosteroid anti-inflammatory medication that relieves pain and itching by decreasing the body's immunological reaction. It is used to treat piles and itchy bottoms, mouth ulcers, skin diseases, adrenal insufficiency, and other conditions. People who don't produce enough stress hormones may benefit from this medicine. The statement about hydrocortisone that is not correct is ''Hydrocortisone inhibits vascular leak due to proinflammatory mediators.''

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What do u hope u don’t have to learn in science this year?

Answers

I hope i had learn of brain cells?
About any type of insects .

The division of the cytoplasm and organelles occur during
O Interphase
O. Cytokinesis
OS phase
O Metaphase

Answers

Cytokinesis because now the cells are multiplying
Cytokinesis

Hope this helps!! :))

The structures in the lungs where gas exchange occurs are called ___________.

Answers

Answer:

Alveoli

Explanation:

Gas exchange refer to the transmission of oxygen from the lungs to the bloodstream and removal of carbondioxide from the bloodstream to the lungs.

Gas exchange occur in the alveoli of the lungs and the capillaries envelope in them. Alveoli is responsible for diffusion of gases to the blood stream through the lungs and removal of gases.

Inhaled oxygen is moved from the alveoli to the blood capillaries and carbondioxide is eliminated from the blood capillaries into the alveoli.

Which motion of particles across a membrane requires energy?
O from high concentration to low concentration
from low concentration to high concentration
with no concentration gradient
O through dynamic equilibrium

Answers

Answer:

B. From low concentration to high concentration

Explanation:

I got it right on edge :)

Answer:

B

Explanation:

You can think of it as a very useless sponge and water.

If you have a dry sponge you can consider this an area of low concentration, and the bucket of water as an area of high concentration of water.

It is easy to soak up water with a dry sponge with osmosis when the high concentration easily fills the low concentration sponge.

On the other hand, a soaked sponge will have a great time trying to soak up a bucket of water with an already wet sponge.

This is a crude example of differing high to low or low to high concentration.

Osmosis is limited to water particles, whereas diffusion is basically molecules.

 

Osmosis is the movement of water along the concentration gradient.

Active transport is the use of energy to move particles against the concentration gradient so it is active, it is attempting to enact homeostasis.

Passive transport is the movement of particles by diffusion without energy so it is just passive, not aggressive.

Diffusion is the movement of particles along the concentration gradient.

1. What percentage of American Farms are family operated?

Answers

97% of all American farms are family operated. Hope this helps!

Why do doctors have to check what blood type a person has before receiving a transfusion?
A. Different blood types have different antibodies that will be attacked by someone with antigens against that blood type.
B. Different blood types have different antigens that will be attacked by someone with antibodies against that blood type.
C. They need to have the same blood type because their DNA must be similar enough to blend or will cause side-effects and possibly be rejected.
D. Your blood type doesn't matter as long as you get the correct amount of blood in a transfusion.

Answers

Answer:

A and B

Explanation:

Doctors need to check the blood type of a person before administering blood transfusion because different blood types have different antibodies that will be attacked by someone with antigens against that blood type.

The blood that would be given to a person must match the blood of that person in terms of the type of antigens. If the blood antigens are different, the antigens present in the blood of the individual undergoing blood transfusion would consider the antigens present in the blood being received as an enemy and attack it. This will lead to agglutination of the blood in the system of the person, a process that often leads to death.

Hence, O-positive individuals must always receive O-positive blood while O-negative individuals must always receive O-negative blood.

The correct options are A and B.

Other Questions
when molecules are joined I an ordered structure Read the excerpt from W.E.B. Du Bois: Social Justice Leader. Du Bois graduated at the top of his high school class. With the help of his community, he graduated from Fisk University -- a historically black university -- in Nashville, Tennessee. He later went on to get a Bachelor of Arts and a Doctorate -- two different degrees -- from Harvard. He was the first African American student to earn a Doctorate at Harvard. Which is the best objective summary of this excerpt? After excelling in high school, Du Bois graduated from Fisk and Harvard, and then earned his doctorate at Harvard. With his trio of university degrees, Du Bois was the most intelligent man of his time. Du Bois was the first African American student to earn a doctorate at Harvard. Du Bois attended Fisk University in Nashville after he graduated high school at the top of his class. y = 1/3 (x - 3) - 7 Regions in high mountains have climates that are mostly:A. cooler than the areas surrounding them.B. hot with both wet and dry seasons.C. temperate with several distinct seasons.D. cold with no precipitation.SUBMIThelp please!! What is the correct definition of citizenship? A.the loyalty that a person feels to a state or nation B.the beliefs and values that are shared by the people in a nation C.the powers that are granted to a state by its people D.the rights and duties of a person who has legal status as a member of a nation -1/9 -1/2, 14/9,4/3 midpoints Which of the Following is the solution to 4|x+3| greater than equal to 8? Options are as followed: A.x less then equal to -5 or x greater than equal to -1 B. x greater than equal to -1 C.x less then equal to -5 and x greater than equal to -1 D. x greater then equal to -5 and x greater then equal to -1 compare and contrast mental health and emotional health Which of these molecules might be found in a molecule that catalyzes a chemicalreaction?(B.9A, B.90)DNA, a nucleic acidlard, a fatvaline, an amino acidglucose, a sugar 3. Find the value of the expression below: *4(1) Evaluate 33b-40 when b=11. Which of the following is true of HTML and CSS?OCSS wasn't intended to be able to style web pages; HTML allowsdevelopers to add style.Using both HTML and CSS allows developers to separate the content ofa web page from the design of a web page.HTML is typically used to modify the style of a website at a largescale, while css is used to style smaller, more simple websites.OHTML and css play similar roles in web design, but most developersprefer using one over the other. If u have a old dogs and it starts whining and it's legs lockup ,and wont let u pick it up. What do i do Im s scared? Given: -7(x+2)+4x=6(2x-4); Prove x=2/3 Some individual states have abolished slavery in their constitutions. Confederation delegates Nevin Weinberg and Dani Kwatcher propose an amendment to abolish slavery in the entire country. Can the Articles of Confederation solve this problem? Why/Why not? In the formula l=Prt, what does the P stand for? How is the manor system connected tofeudalism Explain Mercantilism in your own words. HURRY! How much money will you save on the 25-gallon purchase by choosing the less expensive option? You work for a house-painting company and need to purchase 25 gallons of white paint. One store charges $44.99 per gallon (including tax). A second store usually charges $52.50 per gallon (including tax), but offers 10% off because you are making a bulk purchase. O $2.26 O $7.51 O $56.50 O $168.98 O $187.75 complete each sentence with the correct form of a verb from the list.