Question 1

Collagen can be classified as a ________ protein.

Accepted Answer

The answer of Collagen can be classified as a ________...

Question 2

Which of the following shows all of the tripeptides that can be formed from one molecule each of glycine (Gly), valine (Val), and leucine (Leu)?

Accepted Answer

A)  Gly-Val-Leu 
B)  Val-Gly-Leu, Gly-Val-Leu, Gly-Leu-Val, Leu-Gly-Val 
C)  Gly-Val-Leu, Gly-Leu-Val, Val-Leu-Gly, Val-Gly-Leu, Leu-Gly-Val, Leu-Val-Gly 
D)  Val-Gly-Leu, Gly-Leu-Val 
E)  Gly-Val-Leu, Gly-Leu-Val, Leu-Gly-Val 
A)  Gly-Val-Leu 
B)  Val-Gly-Leu, Gly-Val-Leu, Gly-Leu-Val, Leu-Gly-Val 
C)  Gly-Val-Leu, Gly-Leu-Val, Val-Leu-Gly, Val-Gly-Leu, Leu-Gly-Val, Leu-Val-Gly 
D)  Val-Gly-Leu, Gly-Leu-Val 
E)  Gly-Val-Leu, Gly-Leu-Val, Leu-Gly-Val

Question 3

The fibrous protein responsible for the structure of hair and wool is

Accepted Answer

A) myosin. 
B) endorphin. 
C) keratin. 
D) collagen. 
E) casein. 
A) myosin. 
B) endorphin. 
C) keratin. 
D) collagen. 
E) casein.

Question 4

An acid can denature a protein by

Accepted Answer

A) agitating the protein chains. 
B) removing helping molecules such as heme. 
C) disrupting hydrogen bonds between protein chains. 
D) disrupting hydrophobic interactions within a protein chain. 
E) breaking disulfide bridges. 
A) agitating the protein chains. 
B) removing helping molecules such as heme. 
C) disrupting hydrogen bonds between protein chains. 
D) disrupting hydrophobic interactions within a protein chain. 
E) breaking disulfide bridges.

Question 5

In insulin, two peptide chains are held together in a single unit by

Accepted Answer

A)  a prosthetic group. 
B)    
C)  disulfide bridges. 
D)  hydrogen bonds. 
E)  salt bridges. 
A)  a prosthetic group. 
B)    
C)  disulfide bridges. 
D)  hydrogen bonds. 
E)  salt bridges.

Question 6

Write the structure of glycine at physiological pH.

Accepted Answer

The answer of Write the structure of glycine at physiological...

Collagen can be classified as a ________ protein.

Which of the following shows all of the tripeptides that can be formed from one molecule each of glycine (Gly), valine (Val), and leucine (Leu)?

The fibrous protein responsible for the structure of hair and wool is

An acid can denature a protein by

In insulin, two peptide chains are held together in a single unit by

Write the structure of glycine at physiological pH.

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Exam 19: Amino Acids and Proteins

Collagen can be classified as a ________ protein.

Which of the following shows all of the tripeptides that can be formed from one molecule each of glycine (Gly), valine (Val), and leucine (Leu)?

The fibrous protein responsible for the structure of hair and wool is

An acid can denature a protein by

In insulin, two peptide chains are held together in a single unit by

Write the structure of glycine at physiological pH.

Chemistry in Our Lives

Chemistry and Measurements

Matter and Energy

Atoms and Elements

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Reactions and Quantities

Gases

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, Phenols, Thiols, and Ethers

Aldehydes and Ketones

Carbohydrates

Carboxylic Acids and Esters

Lipids

Amines and Amides

Enzymes and Vitamins

Nucleic Acids and Protein Synthesis

Metabolic Pathways for Carbohydrates

Metabolism and Energy Production

Metabolic Pathways for Lipids and Amino Acids

Filters