Question 1

Which polypeptide decreases urine production?

Accepted Answer

A)  gastrin 
B)  oxytocin 
C)  vasopressin 
D)  insulin 
A)  gastrin 
B)  oxytocin 
C)  vasopressin 
D)  insulin

Question 2

Consider the tertiary structure of a protein containing two peptides with the segments shown below.What type(s)of interaction(s)would be possible between the side chains?

Accepted Answer

A)  hydrogen bonding 
B)  hydrophobic interactions 
C)  salt bridges 
D)  all of the above 
A)  hydrogen bonding 
B)  hydrophobic interactions 
C)  salt bridges 
D)  all of the above

Question 3

A denatured protein

Accepted Answer

A)  has undergone a process which changes the D isomer to an L isomer. 
B)  has the same shape but lacks all cross links. 
C)  does not have the function it previously had. 
D)  is a stereoisomer of the original form.. 
A)  has undergone a process which changes the D isomer to an L isomer. 
B)  has the same shape but lacks all cross links. 
C)  does not have the function it previously had. 
D)  is a stereoisomer of the original form..

Question 4

A large protein undergoes a hydrolysis reaction.The product(s)of such a reaction include _____ .

Accepted Answer

A)  amino acids 
B)  glycerol 
C)  water 
D)  Large proteins do not undergo hydrolysis reactions 
A)  amino acids 
B)  glycerol 
C)  water 
D)  Large proteins do not undergo hydrolysis reactions

Question 5

Measurement of C-reactive Protein (CRP)levels can be used as an indicator of inflammation related to cardiovascular disease.

Accepted Answer

A) True 
 B)False

Question 6

Amino acids with acidic side chains contain a ____ group.

Accepted Answer

A)  -COOH 
B)  -NH2 
C)  -SH 
D)  -OH 
A)  -COOH 
B)  -NH2 
C)  -SH 
D)  -OH

Question 7

A hormone sometimes given to induce labor is _____ .

Accepted Answer

A)  prolactin 
B)  FSH 
C)  glucagon 
D)  oxytocin 
A)  prolactin 
B)  FSH 
C)  glucagon 
D)  oxytocin

Question 8

Denaturation usually involves a change in the primary structure of the protein.

Accepted Answer

A) True 
 B)False

Question 9

The structure of human insulin

Accepted Answer

A)  includes disulfide bridges averaging every 6 amino acid pairs. 
B)  includes both an alpha and a beta helix. 
C)  is characterized by being a large molecule with a complex three-dimensional structure. 
D)  None of the above. 
A)  includes disulfide bridges averaging every 6 amino acid pairs. 
B)  includes both an alpha and a beta helix. 
C)  is characterized by being a large molecule with a complex three-dimensional structure. 
D)  None of the above.

Question 10

The following peptide could be named as _____ .

Accepted Answer

A)  valinylphenylalanyl 
B)  alanylphenylvaline 
C)  glycylphenylleucine 
D)  glycylphenylalanine 
A)  valinylphenylalanyl 
B)  alanylphenylvaline 
C)  glycylphenylleucine 
D)  glycylphenylalanine

Question 11

If the following compound were completely hydrolyzed,how many amino acids could be produced?

Accepted Answer

A)  3 
B)  4 
C)  5 
D)  6 
A)  3 
B)  4 
C)  5 
D)  6

Question 12

Protein denaturation results in a disruption of the

Accepted Answer

A)  primary structure. 
B)  secondary and tertiary structure. 
C)  primary and secondary structure. 
D)  primary,secondary and tertiary structure. 
A)  primary structure. 
B)  secondary and tertiary structure. 
C)  primary and secondary structure. 
D)  primary,secondary and tertiary structure.

Question 13

The reaction of amino acids to form peptides involves which pair of functional groups?

Accepted Answer

A)  two amino groups 
B)  two carboxyl groups 
C)  an amino and a carboxyl group 
D)  a carboxyl and an alcohol group 
A)  two amino groups 
B)  two carboxyl groups 
C)  an amino and a carboxyl group 
D)  a carboxyl and an alcohol group

Question 14

Ferritin functions as an iron storage protein.

Accepted Answer

A) True 
 B)False

Question 15

Whipping of egg white involves protein denaturation.

Accepted Answer

A) True 
 B)False

Question 16

Foreign substances that stimulate an immune response are called _____ .

Accepted Answer

A)  antigens 
B)  antibodies 
C)  immunoglobolins 
D)  lymphocytes 
A)  antigens 
B)  antibodies 
C)  immunoglobolins 
D)  lymphocytes

Question 17

A protein is hydrolyzed,and yields only amino acids as the products.What would the protein be classified as?

Accepted Answer

A)  a simple protein 
B)  a glycoprotein 
C)  a lipoprotein 
D)  a metalloprotein 
A)  a simple protein 
B)  a glycoprotein 
C)  a lipoprotein 
D)  a metalloprotein

Question 18

Which of the following best classifies the side chain of the amino acid listed below?

Accepted Answer

A)  neutral,nonpolar 
B)  basic,polar 
C)  neutral,polar 
D)  acidic,polar 
A)  neutral,nonpolar 
B)  basic,polar 
C)  neutral,polar 
D)  acidic,polar

Question 19

Hemoglobin is just one of several significant examples of a hemoprotein in humans.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is not a protein?

Accepted Answer

A)  enzymes 
B)  antibodies 
C)  collagen 
D)  All these substances are proteins. 
A)  enzymes 
B)  antibodies 
C)  collagen 
D)  All these substances are proteins.

Exam 19: Proteins

Which polypeptide decreases urine production?

Consider the tertiary structure of a protein containing two peptides with the segments shown below.What type(s)of interaction(s)would be possible between the side chains?

A denatured protein

A large protein undergoes a hydrolysis reaction.The product(s)of such a reaction include _____ .

Measurement of C-reactive Protein (CRP)levels can be used as an indicator of inflammation related to cardiovascular disease.

Amino acids with acidic side chains contain a ____ group.

A hormone sometimes given to induce labor is _____ .

Denaturation usually involves a change in the primary structure of the protein.

The structure of human insulin

The following peptide could be named as _____ .

If the following compound were completely hydrolyzed,how many amino acids could be produced?

Protein denaturation results in a disruption of the

The reaction of amino acids to form peptides involves which pair of functional groups?

Ferritin functions as an iron storage protein.

Whipping of egg white involves protein denaturation.

Foreign substances that stimulate an immune response are called _____ .

A protein is hydrolyzed,and yields only amino acids as the products.What would the protein be classified as?

Which of the following best classifies the side chain of the amino acid listed below?

Hemoglobin is just one of several significant examples of a hemoprotein in humans.

Which of the following is not a protein?

Matter, measurements, and Calculations

Atoms and Molecules

Electronic Structure and the Periodic Law

Forces Between Particles

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Acids,bases,and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Carbohydrate Metabolism

Lipid and Amino Acid Metabolism

Body Fluids

Filters