Biochemistry 4th Edition Test Bank Exam with all correct questions and answers
(verified answers)
1) The synthesis of which molecule is considered by many to be the root of biochemistry
since it was the first synthesis of a biological molecule from non-biological precursors?
A) DNA
B) urea
C) glucose
D) glycine
E) adenosine triphosphate (ATP) Answer: B
Difficulty: 1 Topic: The Roots of Biochemistry
2) Prior to 1926, the source of biological catalysis was postulated to be possessed by
“ferments” which today are called _______.
A) proteins
B) nucleic acids
C) enzymes
D) polysaccharides
E) membranes Answer: C
Difficulty: 1 Topic: The Roots of Biochemistry
3) Originally, nucleic acids were thought to serve what role within a cell?
A) catalysts
B) genetic
C) structural
D) buffer
E) none of the above Answer: C
Difficulty: 1 Topic: The Roots of Biochemistry
4) Which of the following organelles is found in plant cells, but not in animal cells
,A) chloroplast
B) Golgi apparatus
C) mitochondrion
D) smooth endoplasmic reticulum
E) rough endoplasmic reticulum Answer: A
Difficulty: 1 Topic: The Roots of Biochemistry
5) Which of the following elements is considered a second tier biochemical element
meaning that it is less abundant than first tier elements but still required for life in all
organisms?
A) H
B) N
C) P
D) C
E) O Answer: C
Difficulty: 1 Topic: Biochemistry as a Chemical Science
6) Which of the following is a polymer derived from glucose?
A) cellulose
B) ribonucleic acid
C) polypeptide
D) deoxyribonucleic acid
E) none of the above Answer: A
Difficulty: 1 Topic: Biochemistry as a Chemical Science
7) Which of the following macromolecules is considered a homopolymer?
A) polypeptides
B) ribonucleic acids
C) deoxyribonucleic acids
D) starch
E) all of the above Answer: D
,Difficulty: 2 Topic: Biochemistry as a Chemical Science
8) Which of the following is a role played by proteins?
A) structural
B) transport
C) information signaling
D) catalysts
E) all of the above Answer: E
Difficulty: 2 Topic: Biochemistry as a Chemical Science
9) Of the following biomolecules, which is found only in a monomeric form as opposed
to a polymeric form?
A) amino acids
B) carbohydrates
C) lipids
D) nucleotides
E) none of the above Answer: C
Difficulty: 1 Topic: Biochemistry as a Chemical Science
10) What functional groups are found in the following molecule?
A) amine, carboxylic acid and ketone
B) amine, carboxylic acid and amide
C) amine, aldehyde and amide
D) amine, aldehyde and ketone
E) none of the above Answer:
Difficulty: 2 Topic: Biochemistry as a Chemical Science
11) What functional groups are found in the following molecule?
A) carboxylic acid, ether, amine and alcohol
B) carboxylic acid, ester, amine and alcohol
C) carboxylic acid, acetal, amine and alcohol
, D) carboxylic acid, ether, amide and alcohol
E) carboxylic acid, hemiacetal, amine and alcohol Answer: E
Difficulty: 3 Topic: Biochemistry as a Chemical Science
12) Of Koshland’s “pillars of life,” which deals specifically with the structure and function
of DNA?
A) program
B) compartmentation
C) energy
D) regeneration
E) adaptability
Answer: A
Difficulty: 2 Topic: Biochemistry as a Biological Science
13) Which of the following best describes homeostasis?
A) a non-equilibrium, non-steady state
B) a non-equilibrium steady state
C) an equilibrium-controlled, non-steady state
D) an equilibrium-controlled steady state
E) none of the above
Answer: B
Difficulty: 2 Topic: Biochemistry as a Biological Science
14) Since the earth is approximately 4.5 billion years old, which of the following is true
regarding life on this planet?
A) life forms that arose 3.8 billion years ago were able to synthesize the building blocks
of life from non-organic molecules
B) the earliest organisms on this planet were anaerobic
C) the oxygen in the earth’s atmosphere was originally trapped in ice and thus
unavailable for living organisms
D) all multi-cellular anaerobic organisms died out as oxygen became more plentiful
E) none of the above
(verified answers)
1) The synthesis of which molecule is considered by many to be the root of biochemistry
since it was the first synthesis of a biological molecule from non-biological precursors?
A) DNA
B) urea
C) glucose
D) glycine
E) adenosine triphosphate (ATP) Answer: B
Difficulty: 1 Topic: The Roots of Biochemistry
2) Prior to 1926, the source of biological catalysis was postulated to be possessed by
“ferments” which today are called _______.
A) proteins
B) nucleic acids
C) enzymes
D) polysaccharides
E) membranes Answer: C
Difficulty: 1 Topic: The Roots of Biochemistry
3) Originally, nucleic acids were thought to serve what role within a cell?
A) catalysts
B) genetic
C) structural
D) buffer
E) none of the above Answer: C
Difficulty: 1 Topic: The Roots of Biochemistry
4) Which of the following organelles is found in plant cells, but not in animal cells
,A) chloroplast
B) Golgi apparatus
C) mitochondrion
D) smooth endoplasmic reticulum
E) rough endoplasmic reticulum Answer: A
Difficulty: 1 Topic: The Roots of Biochemistry
5) Which of the following elements is considered a second tier biochemical element
meaning that it is less abundant than first tier elements but still required for life in all
organisms?
A) H
B) N
C) P
D) C
E) O Answer: C
Difficulty: 1 Topic: Biochemistry as a Chemical Science
6) Which of the following is a polymer derived from glucose?
A) cellulose
B) ribonucleic acid
C) polypeptide
D) deoxyribonucleic acid
E) none of the above Answer: A
Difficulty: 1 Topic: Biochemistry as a Chemical Science
7) Which of the following macromolecules is considered a homopolymer?
A) polypeptides
B) ribonucleic acids
C) deoxyribonucleic acids
D) starch
E) all of the above Answer: D
,Difficulty: 2 Topic: Biochemistry as a Chemical Science
8) Which of the following is a role played by proteins?
A) structural
B) transport
C) information signaling
D) catalysts
E) all of the above Answer: E
Difficulty: 2 Topic: Biochemistry as a Chemical Science
9) Of the following biomolecules, which is found only in a monomeric form as opposed
to a polymeric form?
A) amino acids
B) carbohydrates
C) lipids
D) nucleotides
E) none of the above Answer: C
Difficulty: 1 Topic: Biochemistry as a Chemical Science
10) What functional groups are found in the following molecule?
A) amine, carboxylic acid and ketone
B) amine, carboxylic acid and amide
C) amine, aldehyde and amide
D) amine, aldehyde and ketone
E) none of the above Answer:
Difficulty: 2 Topic: Biochemistry as a Chemical Science
11) What functional groups are found in the following molecule?
A) carboxylic acid, ether, amine and alcohol
B) carboxylic acid, ester, amine and alcohol
C) carboxylic acid, acetal, amine and alcohol
, D) carboxylic acid, ether, amide and alcohol
E) carboxylic acid, hemiacetal, amine and alcohol Answer: E
Difficulty: 3 Topic: Biochemistry as a Chemical Science
12) Of Koshland’s “pillars of life,” which deals specifically with the structure and function
of DNA?
A) program
B) compartmentation
C) energy
D) regeneration
E) adaptability
Answer: A
Difficulty: 2 Topic: Biochemistry as a Biological Science
13) Which of the following best describes homeostasis?
A) a non-equilibrium, non-steady state
B) a non-equilibrium steady state
C) an equilibrium-controlled, non-steady state
D) an equilibrium-controlled steady state
E) none of the above
Answer: B
Difficulty: 2 Topic: Biochemistry as a Biological Science
14) Since the earth is approximately 4.5 billion years old, which of the following is true
regarding life on this planet?
A) life forms that arose 3.8 billion years ago were able to synthesize the building blocks
of life from non-organic molecules
B) the earliest organisms on this planet were anaerobic
C) the oxygen in the earth’s atmosphere was originally trapped in ice and thus
unavailable for living organisms
D) all multi-cellular anaerobic organisms died out as oxygen became more plentiful
E) none of the above
