Test Bank for - Course Title: Wessner2e Chapter Number: 1 Quest...

Test Bank for Microbiology, 2e Dave Wessner, Christine Dupont, Trevor Charles, Josh Neufeld (All Chapters) 1 / 4

Package Title: Test Bank

Course Title: Wessner2e

Chapter Number: 1

Question Type: Multiple Choice

1) Which of these is considered to be the smallest unit of life?

• the nucleus
• the mitochondrion
• a plasmid
• the cell
• a prion

Answer: d

Difficulty: Easy

Learning Objective: LO 1.1 Discuss what microbiology is and what separates it from other biological sciences.

2) The study of microbiology includes all of the following EXCEPT _____ .

• plants
• viruses
• bacteria
• fungi
• algae

Answer: a

Difficulty: Easy

Learning Objective: LO 1.1 Discuss what microbiology is and what separates it from other biological sciences.

3) What percent of the dry weight of the cell is composed of DNA?

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• 2 – 5
• 12 -15
• 25 - 30
• 35 -40
• 50 – 55

Answer: a

Difficulty: Medium

Learning Objective: LO 1.1 Discuss what microbiology is and what separates it from other biological sciences.

4) What are the three Domains of life?

a) Monera, Animals, and Plants

b) Bacteria, Archaea, and Eukarya

c) Prokaryote, Eukaryote, and Fungi

d) Animals, Plants, and Bacteria

e) Prokaryote, Eukaryote, Archaea

Answer: b

Difficulty: Medium

Learning Objective: LO 1.1 Discuss what microbiology is and what separates it from other biological sciences.

5) Which of the characteristics of life is not displayed by any individual organism?

• metabolism
• growth
• reproduction
• evolution
• response
• homeostasis

Answer: d

Difficulty: Medium

Learning Objective: LO 1.1 Discuss what microbiology is and what separates it from other biological sciences.

6) Viruses are considered “nonliving” for all of the following reasons EXCEPT that they:

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• need a host cell for replication.
• are metabolically inert.
• possess DNA that can evolve.
• do not maintain internal homeostasis.
• are not responsive to environmental changes.

Answer: c

Difficulty: Medium

Learning Objective: LO 1.1 Discuss what microbiology is and what separates it from other biological sciences.

7) Which is a macromolecular difference between the Domains Bacteria and Archaea?

a) Archaea contain a nucleus and Bacteria do not.

b) Bacteria contain DNA and Archaea do not.

c) Bacteria contain a plasma membrane and Archaea do not.

d) Bacteria cell wall contains peptidoglycan and the Archaea cell wall does not.

e) Archaea contain multiple types of RNA polymerase and Bacteria has only one type.

Answer: d

Difficulty: Hard

Learning Objective: LO 1.1 Discuss what microbiology is and what separates it from other biological sciences.

8) The size and shapes of Archaean cells suggest relatedness to:

a) Bacteria

b) Prokaryotes

c) Eukaryotes

d) All other life forms

e) No other life forms; their sizes and shapes are unique

Answer: a

Difficulty: Medium

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