,Molecular Biology- Principles and Practice 2e
Cox et. al
Chapter 1
1. The requirements of a living system include:
A. raw materials and energy.
B. catalysis of reactions.
C. a selective barrier.
D. biological information.
E. All of these choices are correct.
Answer: E
Section: 1.1
Level: Easy
Blooms: Knowledge
2. The cell keeps pH, temperature, and ion concentrations within a narrow window in order to maintain
______________.
Answer: homeostasis
Section: 1.1
Level: Easy
Blooms: Knowledge
3. The process of synthesizing DNA from RNA is called:
A. reverse transcription.
B. transcription.
C. translation.
D. replication.
Answer: A
Section: 1.1
Level: Medium
Blooms: Knowledge
4. Deinococcus radiodurans is (select all that apply):
A. resistant to ionizing radiation.
B. able to repair DNA breaks without ATP.
C. killed via desiccation.
D. unique in its ability to withstand ionizing radiation.
E. adapted to withstand the desert environment.
Answer: A, E
,Section: 1.1
Level: Medium
Blooms: Comprehension
5. Earth’s early atmosphere contained (select all that apply):
A. methane.
B. water.
C. nitrogen.
D. hydrogen.
E. organic molecules.
Answer: A, B, C, D
Section: 1.1
Level: Easy
Blooms: Knowledge
6. The RNA World hypothesis is directly supported by all the following except:
A. catalytic RNAs.
B. ribozymes showing diverse function.
C. ribosome structure.
D. micelle to vesicle formation.
Answer: D
Section: 1.1
Level: Medium
Blooms: Comprehension
7. When a cell acquires a new function, it usually has acquired:
A. additional nutrients.
B. additional energy.
C. additional volume.
D. a new enzyme.
Answer: D
Section: 1.1
Level: Easy
Blooms: Knowledge
8. LUCA, the last universal common ancestor, is:
A. a prehistoric protozoan cell.
B. an embryonic cell (in fetus).
C. the simplest bacterial cell.
, D. a cell from which all organisms descended.
Answer: D
Section: 1.1
Level: Medium
Blooms: Knowledge
9. Scientists currently theorize that:
A. it is possible to synthesize a simple cell similar to LUCA.
B. cells from the Archaea group are most similar to LUCA.
C. cells from the Bacteria group can be mutated so they revert to LUCA.
D. evolution created LUCA from the Archaea group.
Answer: A
Section: 1.1
Level: Hard
Blooms: Application
10. The three main groups of known organisms include (select all that apply):
A. Bacteria.
B. Archaea.
C. Eukaryotes.
D. Fungi.
E. Prokaryotes.
Answer: A, B, C
Section: 1.1
Level: Easy
Blooms: Knowledge
11. The two tenets of natural selection are (select all that apply):
A. sexual reproduction in a population.
B. variation in a population.
C. competition in a population.
D. increasing number of members in a population.
Answer: B, C
Section: 1.1
Level: Easy
Blooms: Knowledge
Cox et. al
Chapter 1
1. The requirements of a living system include:
A. raw materials and energy.
B. catalysis of reactions.
C. a selective barrier.
D. biological information.
E. All of these choices are correct.
Answer: E
Section: 1.1
Level: Easy
Blooms: Knowledge
2. The cell keeps pH, temperature, and ion concentrations within a narrow window in order to maintain
______________.
Answer: homeostasis
Section: 1.1
Level: Easy
Blooms: Knowledge
3. The process of synthesizing DNA from RNA is called:
A. reverse transcription.
B. transcription.
C. translation.
D. replication.
Answer: A
Section: 1.1
Level: Medium
Blooms: Knowledge
4. Deinococcus radiodurans is (select all that apply):
A. resistant to ionizing radiation.
B. able to repair DNA breaks without ATP.
C. killed via desiccation.
D. unique in its ability to withstand ionizing radiation.
E. adapted to withstand the desert environment.
Answer: A, E
,Section: 1.1
Level: Medium
Blooms: Comprehension
5. Earth’s early atmosphere contained (select all that apply):
A. methane.
B. water.
C. nitrogen.
D. hydrogen.
E. organic molecules.
Answer: A, B, C, D
Section: 1.1
Level: Easy
Blooms: Knowledge
6. The RNA World hypothesis is directly supported by all the following except:
A. catalytic RNAs.
B. ribozymes showing diverse function.
C. ribosome structure.
D. micelle to vesicle formation.
Answer: D
Section: 1.1
Level: Medium
Blooms: Comprehension
7. When a cell acquires a new function, it usually has acquired:
A. additional nutrients.
B. additional energy.
C. additional volume.
D. a new enzyme.
Answer: D
Section: 1.1
Level: Easy
Blooms: Knowledge
8. LUCA, the last universal common ancestor, is:
A. a prehistoric protozoan cell.
B. an embryonic cell (in fetus).
C. the simplest bacterial cell.
, D. a cell from which all organisms descended.
Answer: D
Section: 1.1
Level: Medium
Blooms: Knowledge
9. Scientists currently theorize that:
A. it is possible to synthesize a simple cell similar to LUCA.
B. cells from the Archaea group are most similar to LUCA.
C. cells from the Bacteria group can be mutated so they revert to LUCA.
D. evolution created LUCA from the Archaea group.
Answer: A
Section: 1.1
Level: Hard
Blooms: Application
10. The three main groups of known organisms include (select all that apply):
A. Bacteria.
B. Archaea.
C. Eukaryotes.
D. Fungi.
E. Prokaryotes.
Answer: A, B, C
Section: 1.1
Level: Easy
Blooms: Knowledge
11. The two tenets of natural selection are (select all that apply):
A. sexual reproduction in a population.
B. variation in a population.
C. competition in a population.
D. increasing number of members in a population.
Answer: B, C
Section: 1.1
Level: Easy
Blooms: Knowledge
