Question 1

Which of the following statements is FALSE?

Accepted Answer

A)  Proteins can be structural components of cells. 
B)  Proteins can transmit signals between cells. 
C)  Proteins can transport molecules within cells and between cells. 
D)  Proteins can be both hormones and hormone receptors. 
E)  Proteins are the only biological polymer that can catalyze biochemical reactions. E

Question 2

Nearly all proteins contain:

Accepted Answer

A)  cobalt. 
B)  phosphorus. 
C)  selenium. 
D)  sulfur. 
E)  none of the above. D

Question 3

The water content in the human body is approximately:

Accepted Answer

A)  90%. 
B)  80%. 
C)  70%. 
D)  60%. 
E)  50%. C

Question 4

The principle component of a biological membrane is a triglyceride.

Accepted Answer

A) True 
 B)False

Question 5

Amino acids and simple organic compounds like carbon dioxide and hydrogen cyanide cannot be produced without the use of enzymes.

Accepted Answer

A) True 
 B)False

Question 6

An amphipathic molecule provides the foundation for biological membranes because they have both ________ and ________ functional groups.

Accepted Answer

The answer of An amphipathic molecule provides the foundation for...

Question 7

The four most abundant chemical elements in living systems are:

Accepted Answer

A)  hydrogen, oxygen, sulfur and phosphorus. 
B)  hydrogen, carbon, nitrogen and oxygen. 
C)  sodium, potassium, carbon and oxygen. 
D)  sodium, potassium, nitrogen and sulfur. 
E)  carbon, nitrogen, oxygen and potassium.

Question 8

Genomics is concerned with the entire ________, while ________ is focused on identifying all of the proteins of a cell.

Accepted Answer

The answer of Genomics is concerned with the entire ________,...

Question 9

The chemical element ________ has a role in both transfer of energy as well as in the structure of nucleic acids.

Accepted Answer

The answer of The chemical element ________ has a role...

Question 10

Oxidation-reduction reactions, which are the basis of many biochemical reactions and pathways, cannot take place in the absence of oxygen.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is NOT classed as a lipid?

Accepted Answer

A)  Cholesterol 
B)  Palmitic acid 
C)  Glycerol 
D)  Phosphatidyl serine 
E)  Triacylglycerol

Question 12

List the four major classes of biological macromolecules.

Accepted Answer

The answer of List the four major classes of biological...

Question 13

Many biochemical reactions that form biopolymers from monomeric units involve the removal of water.

Accepted Answer

A) True 
 B)False

Exam 1: Biochemistry and the Language of Chemistry

Which of the following statements is FALSE?

Nearly all proteins contain:

The water content in the human body is approximately:

The principle component of a biological membrane is a triglyceride.

Amino acids and simple organic compounds like carbon dioxide and hydrogen cyanide cannot be produced without the use of enzymes.

An amphipathic molecule provides the foundation for biological membranes because they have both and functional groups.

The four most abundant chemical elements in living systems are:

Genomics is concerned with the entire , while is focused on identifying all of the proteins of a cell.

The chemical element ________ has a role in both transfer of energy as well as in the structure of nucleic acids.

Oxidation-reduction reactions, which are the basis of many biochemical reactions and pathways, cannot take place in the absence of oxygen.

Which of the following is NOT classed as a lipid?

List the four major classes of biological macromolecules.

Many biochemical reactions that form biopolymers from monomeric units involve the removal of water.