Educational Purposes Only. Photocopy Prohibited.
Biochemistry 4th edition test bank exam with 100 complete
questions and answers with correct detailed answers already
ranked 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?
©2014 BioSci 106 Revision Notes IV: Signal Transduction – Page 1 Of 52
, Educational Purposes Only. Photocopy Prohibited.
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: B
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?
©2014 BioSci 106 Revision Notes IV: Signal Transduction – Page 2 Of 52
, Educational Purposes Only. Photocopy Prohibited.
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
Answer: B
Difficulty: 2 Topic: Biochemistry as a Biological Science
15) While there are many ways to compare biochemical similarities in organisms, the molecular tree of life is
based predominantly on similarities in what biological molecule?
A) DNA
B) proteins
C) ribosomal RNA
D) transfer RNA
E) lipids of cell membranes
Answer: C
Difficulty: 1 Topic: Biochemistry as a Biological Science
16) The genetic information of viruses is contained within __________ .
A) DNA
B) DNA or RNA
C) specialized proteins with defined amino acid sequence
D) specialized carbohydrates with defined sequence
E) none of the above
Answer: B
Difficulty: 1 Topic: Biochemistry as a Biological Science
Short Answer Questions
1) The molecule pyruvic acid is found at the crossroads of several biochemical pathways. Pyruvic acid is also
known as 2-oxopropanoic acid. Based upon this name, draw the molecule.
Answer:
Difficulty: 2 Topic: Biochemistry as a Chemical Science
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 _______.
©2014 BioSci 106 Revision Notes IV: Signal Transduction – Page 3 Of 52
, Educational Purposes Only. Photocopy Prohibited.
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
1. The following reactions are all common parts of some hormone processes:
1. Binding of the hormone to a receptor.
2. Synthesis of cyclic AMP
3. Phosphorylation of the target enzyme.
4. Release of a G-protein from the interior cell membrane.
5. Activation of a protein kinase.
A typical path of reactions would follow this sequence:
a. 1 → 2 → 4 → 3 → 5.
b. 1 → 4 → 2 → 3 → 5.
c. 1 → 4 → 2 → 5 → 3.
d. 1 → 2 → 4 → 5 → 3.
e. 2 → 1 → 4 → 5 → 3.
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
TOPICS: Hormones and Second Messengers
DATE CREATED: 12/23/2013 2:15 PM
DATE MODIFIED: 12/23/2013 2:15 PM
2.Which of the following is not a potential mechanism to activate protein kinases?
©2014 BioSci 106 Revision Notes IV: Signal Transduction – Page 4 Of 52
Biochemistry 4th edition test bank exam with 100 complete
questions and answers with correct detailed answers already
ranked 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?
©2014 BioSci 106 Revision Notes IV: Signal Transduction – Page 1 Of 52
, Educational Purposes Only. Photocopy Prohibited.
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: B
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?
©2014 BioSci 106 Revision Notes IV: Signal Transduction – Page 2 Of 52
, Educational Purposes Only. Photocopy Prohibited.
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
Answer: B
Difficulty: 2 Topic: Biochemistry as a Biological Science
15) While there are many ways to compare biochemical similarities in organisms, the molecular tree of life is
based predominantly on similarities in what biological molecule?
A) DNA
B) proteins
C) ribosomal RNA
D) transfer RNA
E) lipids of cell membranes
Answer: C
Difficulty: 1 Topic: Biochemistry as a Biological Science
16) The genetic information of viruses is contained within __________ .
A) DNA
B) DNA or RNA
C) specialized proteins with defined amino acid sequence
D) specialized carbohydrates with defined sequence
E) none of the above
Answer: B
Difficulty: 1 Topic: Biochemistry as a Biological Science
Short Answer Questions
1) The molecule pyruvic acid is found at the crossroads of several biochemical pathways. Pyruvic acid is also
known as 2-oxopropanoic acid. Based upon this name, draw the molecule.
Answer:
Difficulty: 2 Topic: Biochemistry as a Chemical Science
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 _______.
©2014 BioSci 106 Revision Notes IV: Signal Transduction – Page 3 Of 52
, Educational Purposes Only. Photocopy Prohibited.
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
1. The following reactions are all common parts of some hormone processes:
1. Binding of the hormone to a receptor.
2. Synthesis of cyclic AMP
3. Phosphorylation of the target enzyme.
4. Release of a G-protein from the interior cell membrane.
5. Activation of a protein kinase.
A typical path of reactions would follow this sequence:
a. 1 → 2 → 4 → 3 → 5.
b. 1 → 4 → 2 → 3 → 5.
c. 1 → 4 → 2 → 5 → 3.
d. 1 → 2 → 4 → 5 → 3.
e. 2 → 1 → 4 → 5 → 3.
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
TOPICS: Hormones and Second Messengers
DATE CREATED: 12/23/2013 2:15 PM
DATE MODIFIED: 12/23/2013 2:15 PM
2.Which of the following is not a potential mechanism to activate protein kinases?
©2014 BioSci 106 Revision Notes IV: Signal Transduction – Page 4 Of 52
