Question 1

Coagulation occurs when a protein unfolds and becomes entangled.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following statements concerning proteins is FALSE?

Accepted Answer

A) Proteins are polymers of amino acids joined together by amide bonds. 
B) Proteins serve numerous functions in the body,including structural roles,enzymes,hormones,and transport vehicles. 
C) The N-terminal end of a protein contains a free amino group. 
D) The C-terminal end of a protein contains a free methyl group. 
E) Fibrous proteins have long,extended shapes,and are insoluble in water. 
A) Proteins are polymers of amino acids joined together by amide bonds. 
B) Proteins serve numerous functions in the body,including structural roles,enzymes,hormones,and transport vehicles. 
C) The N-terminal end of a protein contains a free amino group. 
D) The C-terminal end of a protein contains a free methyl group. 
E) Fibrous proteins have long,extended shapes,and are insoluble in water.

Question 3

Which structural protein is found in bone,tendon,and skin?

Accepted Answer

A) collagen 
B) fibrinogen 
C) albumin 
D) keratin 
E) insulin 
A) collagen 
B) fibrinogen 
C) albumin 
D) keratin 
E) insulin

Question 4

What level of protein structure specifies the sequence of amino acids in the protein?

Accepted Answer

A) quaternary 
B) β-pleated sheet 
C) primary 
D) secondary 
E) tertiary 
A) quaternary 
B) β-pleated sheet 
C) primary 
D) secondary 
E) tertiary

Question 5

Which amino acid has a methyl group as its R group?

Accepted Answer

A) glycine 
B) alanine 
C) lysine 
D) valine 
E) tyrosine 
A) glycine 
B) alanine 
C) lysine 
D) valine 
E) tyrosine

Question 6

Which statement is FALSE?

Accepted Answer

A) Hydrophobic amino acids have nonpolar side chains. 
B) Hydrophobic amino acids are usually positively or negatively charged. 
C) Hydrophobic amino acids are found in the interior of proteins. 
D) Hydrophilic amino acids can be subdivided into categories based upon their charge at pH of 7. 
E) Hydrophilic amino acids have polar side chains. 
A) Hydrophobic amino acids have nonpolar side chains. 
B) Hydrophobic amino acids are usually positively or negatively charged. 
C) Hydrophobic amino acids are found in the interior of proteins. 
D) Hydrophilic amino acids can be subdivided into categories based upon their charge at pH of 7. 
E) Hydrophilic amino acids have polar side chains.

Question 7

What two types of secondary structure are depicted in the ribbon diagram of the protein shown below?

Accepted Answer

A) β-spirals and α-turns 
B) double stranded helices and β-arrays 
C) random coils and β-arrays 
D) α-helices and β-pleated sheets 
E) α-spirals and β-turns 
A) β-spirals and α-turns 
B) double stranded helices and β-arrays 
C) random coils and β-arrays 
D) α-helices and β-pleated sheets 
E) α-spirals and β-turns

Question 8

Similarities and differences in the primary structures of a protein isolated from two different organisms can provide an estimate of the evolutionary relationship between the two organisms.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is a source of complete protein?

Accepted Answer

A) beans 
B) rice 
C) peanuts 
D) wheat 
E) chicken 
A) beans 
B) rice 
C) peanuts 
D) wheat 
E) chicken

Question 10

A fully vegetarian diet cannot provide a complete source of protein.

Accepted Answer

A) True 
 B)False

Question 11

Blood proteins will become denatured when they develop an overall negative charge.This would be the result of which of the following?

Accepted Answer

A) a lowering of pH 
B) an increase in pH 
C) a lowering of the partial pressure of oxygen 
D) an increase in the partial pressure of oxygen 
E) poor circulation 
A) a lowering of pH 
B) an increase in pH 
C) a lowering of the partial pressure of oxygen 
D) an increase in the partial pressure of oxygen 
E) poor circulation

Question 12

Which of the following kinds of proteins are biochemical catalysts?

Accepted Answer

A) nutrient proteins 
B) hormones 
C) transport proteins 
D) enzymes 
E) antigens 
A) nutrient proteins 
B) hormones 
C) transport proteins 
D) enzymes 
E) antigens

Question 13

What are the two most common types of secondary structure found in proteins?

Accepted Answer

A) α-helices and β-arrays 
B) double stranded helices and β-arrays 
C) α-helices and β-pleated sheets 
D) β-spirals and α-turns 
E) random coils and β-pleated sheets 
A) α-helices and β-arrays 
B) double stranded helices and β-arrays 
C) α-helices and β-pleated sheets 
D) β-spirals and α-turns 
E) random coils and β-pleated sheets

Question 14

Which of the following are proteins produced by the immune system in response to foreign substances in the body?

Accepted Answer

A) transferases 
B) antibodies 
C) insulins 
D) albumins 
E) myoglobins 
A) transferases 
B) antibodies 
C) insulins 
D) albumins 
E) myoglobins

Question 15

What term describes the type of β-pleated sheet in which both peptides are aligned from amino terminus to carboxy terminus?

Accepted Answer

A) antiparallel 
B) perpendicular 
C) parallel 
D) matched 
E) congruent 
A) antiparallel 
B) perpendicular 
C) parallel 
D) matched 
E) congruent

Coagulation occurs when a protein unfolds and becomes entangled.

Which of the following statements concerning proteins is FALSE?

Which structural protein is found in bone,tendon,and skin?

What level of protein structure specifies the sequence of amino acids in the protein?

Which amino acid has a methyl group as its R group?

Which statement is FALSE?

What two types of secondary structure are depicted in the ribbon diagram of the protein shown below?

Similarities and differences in the primary structures of a protein isolated from two different organisms can provide an estimate of the evolutionary relationship between the two organisms.

Which of the following is a source of complete protein?

A fully vegetarian diet cannot provide a complete source of protein.

Blood proteins will become denatured when they develop an overall negative charge.This would be the result of which of the following?

Which of the following kinds of proteins are biochemical catalysts?

What are the two most common types of secondary structure found in proteins?

Which of the following are proteins produced by the immune system in response to foreign substances in the body?

What term describes the type of β-pleated sheet in which both peptides are aligned from amino terminus to carboxy terminus?

Chemistry - Methods and Measurement

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, chemical Changes, and the Chemical Equation

States of Matter: Gases, liquids, and Solids

Solutions

Energy,rate and Equilibrium

Acids and Bases

The Nucleus, radioactivity, and Nuclear Medicine

An Introduction to Organic Chemistry

The Unsaturated Hydrocarbons: Alkenes, alkynes, and Aromatics

Alcohols, phenols, thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Carbohydrates

Lipids and Their Functions in Biochemical Systems

Enzymes

Introduction to Molecular Genetics

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters

Exam 18: Protein Structure and Function

Coagulation occurs when a protein unfolds and becomes entangled.

Which of the following statements concerning proteins is FALSE?

Which structural protein is found in bone,tendon,and skin?

What level of protein structure specifies the sequence of amino acids in the protein?

Which amino acid has a methyl group as its R group?

Which statement is FALSE?

What two types of secondary structure are depicted in the ribbon diagram of the protein shown below?

Similarities and differences in the primary structures of a protein isolated from two different organisms can provide an estimate of the evolutionary relationship between the two organisms.

Which of the following is a source of complete protein?

A fully vegetarian diet cannot provide a complete source of protein.

Blood proteins will become denatured when they develop an overall negative charge.This would be the result of which of the following?

Which of the following kinds of proteins are biochemical catalysts?

What are the two most common types of secondary structure found in proteins?

Which of the following are proteins produced by the immune system in response to foreign substances in the body?

What term describes the type of β-pleated sheet in which both peptides are aligned from amino terminus to carboxy terminus?

Chemistry - Methods and Measurement

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, chemical Changes, and the Chemical Equation

States of Matter: Gases, liquids, and Solids

Solutions

Energy,rate and Equilibrium

Acids and Bases

The Nucleus, radioactivity, and Nuclear Medicine

An Introduction to Organic Chemistry

The Unsaturated Hydrocarbons: Alkenes, alkynes, and Aromatics

Alcohols, phenols, thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Carbohydrates

Lipids and Their Functions in Biochemical Systems

Enzymes

Introduction to Molecular Genetics

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters