Question 1

The life cycle of viruses involves:

Accepted Answer

A)  production of new virus particles on the outside of a cell.
B)  reproducing on the surface of a cell.
C)  filling the host cell with viral particles.
D)  attaching viral DNA to the surface of a cell.E) B) and C)
F) A) and D)

Question 2

Which of the following is the best description of a virus?

Accepted Answer

A)  A virus is the smallest living thing.
B)  A virus is a life-form that can reproduce inside cells or independently.
C)  A virus is a tiny spore-producing cell.
D)  A virus is a noncellular, replicating entity.E) A) and B)
F) A) and C)

Question 3

Which of the following would support the statement that bacteria represent the most fundamentally diverse group on Earth?

Accepted Answer

A)  Bacteria exist in varieties with and without cell walls.
B)  Bacteria accomplish all characteristics of life as small, single cells.
C)  Bacteria are metabolically diverse regarding oxygen and food requirements.
D)  Bacteria come in several different shapes.E) A) and C)
F) B) and D)

Question 4

The core of some viruses is carbohydrate in nature.

Accepted Answer

A) True 
 B)False

Question 5

Malaria is caused by a bacterium.

Accepted Answer

A) True 
 B)False

Question 6

When a virus takes over the machinery of a cell,it forces the cell to manufacture more viral particles.

Accepted Answer

A) True 
 B)False

Question 7

A major difference between bacteria and eukaryotes is that bacteria have:

Accepted Answer

A)  a rod-shaped nucleus.
B)  no membrane-bound organelles.
C)  faster mitosis as their method of sexual reproduction.
D)  no ribosomes.E) A) and B)
F) A) and C)

Question 8

Most bacteria present in the human intestines are pathogenic.

Accepted Answer

A) True 
 B)False

Question 9

Refer to the scenario below, and then answer the following question(s) .
As part of your field biology independent study, you visit a small lake with an extremely high salt concentration. Searching with nets and other sampling devices, you find no fish, plants, algae, or any visible signs of life in the lake. Still, you decide to take a few samples of the water back to the lab. You find the sample teeming with very small cells, hundreds of times smaller than a typical human cell. These cells have cell walls, which you analyze chemically and find they are not made of peptidoglycan or cellulose.
-Based upon the environment in which you found these life-forms,how would you categorize them?

Accepted Answer

A)  thermophiles
B)  halophiles
C)  anaerobes
D)  methanogensE) All of the above
F) C) and D)

Question 10

Methanogens are in the ________ category of extremophile.

Accepted Answer

The answer of Methanogens are in the ________ category of...

Question 11

What is the benefit of sexual reproduction in protists?

Accepted Answer

A)  greater variation among offspring
B)  fast increase in numbers
C)  availability of more environments
D)  ease of finding a mateE) B) and C)
F) C) and D)

Question 12

Chlamydomonas "mating types" differ in what way?

Accepted Answer

A)  chloroplasts
B)  flagella structure
C)  interlocking male and female parts
D)  membrane phospholipidsE) A) and C)
F) C) and D)

Question 13

Protists are arguably the most diverse of the eukaryotic kingdoms.Defend that statement using examples to support your ideas.

Accepted Answer

The protists include photosynthetic orga...

Question 14

Cells such as those of golden algae that form stable associations but do not take on specialized roles are described as:

Accepted Answer

A)  incomplete unicellular.
B)  selective multicellularity.
C)  true multicellularity.
D)  colonial multicellularity.E) B) and D)
F) B) and C)

Question 15

If antibiotics seem effective against a human illness,then this illness is probably caused by a/an:

Accepted Answer

A)  protist.
B)  autoimmune disease.
C)  virus.
D)  bacterium.E) B) and D)
F) B) and C)

Question 16

In general,most antibiotics work by:

Accepted Answer

A)  exploiting differences between human and bacterial cells.
B)  preventing bacteria from entering human cells.
C)  preventing viruses from entering human cells.
D)  boosting the human immune system.E) A) and B)
F) None of the above

Question 17

Which phrase most accurately describes the genome of most viruses?

Accepted Answer

A)  surprisingly complex, with tens of thousands of genes
B)  surprisingly complex, with around 1 million genes
C)  the same as most bacteria, with hundreds of genes
D)  relatively simple, with around a dozen genes or fewerE) None of the above
F) B) and D)

Question 18

Amoeba and phytoplankton differ in that phytoplankton can:

Accepted Answer

A)  perform photosynthesis.
B)  eat krill.
C)  move with pseudopodia.
D)  live on land.E) None of the above
F) A) and C)

Question 19

In what type of environment would you be most likely to find anaerobes?

Accepted Answer

A)  high temperature
B)  high acidity
C)  high salt content
D)  no oxygenE) B) and C)
F) A) and B)

Question 20

Which of the following areas/conditions would be favored by thermophiles?

Accepted Answer

A)  anaerobic conditions
B)  deep-sea volcanic vents
C)  the arctic tundra
D)  the stomachs of herbivoresE) A) and C)
F) A) and D)

Exam 21: Viruses,bacteria,archaea,and Protists: the Diversity of Life 1

What is the benefit of sexual reproduction in protists?

Correct Answer
verified

If antibiotics seem effective against a human illness,then this illness is probably caused by a/an:

Correct Answer
verified

Protists are arguably the most diverse of the eukaryotic kingdoms.Defend that statement using examples to support your ideas.

Correct Answer
verified
The protists include photosynthetic orga...
View Answer

Chlamydomonas "mating types" differ in what way?

Correct Answer
verified

Correct Answer
verified

When a virus takes over the machinery of a cell,it forces the cell to manufacture more viral particles.

Correct Answer
verified

In general,most antibiotics work by:

Correct Answer
verified

Amoeba and phytoplankton differ in that phytoplankton can:

Correct Answer
verified

A major difference between bacteria and eukaryotes is that bacteria have:

Correct Answer
verified

Methanogens are in the ________ category of extremophile.

Correct Answer
verified

The core of some viruses is carbohydrate in nature.

Correct Answer
verified

Which of the following would support the statement that bacteria represent the most fundamentally diverse group on Earth?

Correct Answer
verified

Most bacteria present in the human intestines are pathogenic.

Correct Answer
verified

The life cycle of viruses involves:

Correct Answer
verified

Malaria is caused by a bacterium.

Correct Answer
verified

Cells such as those of golden algae that form stable associations but do not take on specialized roles are described as:

Correct Answer
verified

Which phrase most accurately describes the genome of most viruses?

Correct Answer
verified

Which of the following areas/conditions would be favored by thermophiles?

Correct Answer
verified

In what type of environment would you be most likely to find anaerobes?

Correct Answer
verified

Which of the following is the best description of a virus?

Correct Answer
verified

Exam 21: Viruses,bacteria,archaea,and Protists: the Diversity of Life 1

What is the benefit of sexual reproduction in protists?

Correct AnswerverifiedShow Answer

If antibiotics seem effective against a human illness,then this illness is probably caused by a/an:

Correct AnswerverifiedShow Answer

Protists are arguably the most diverse of the eukaryotic kingdoms.Defend that statement using examples to support your ideas.

Correct AnswerverifiedThe protists include photosynthetic orga...View AnswerShow Answer

Chlamydomonas "mating types" differ in what way?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

When a virus takes over the machinery of a cell,it forces the cell to manufacture more viral particles.

Correct AnswerverifiedShow Answer

In general,most antibiotics work by:

Correct AnswerverifiedShow Answer

Amoeba and phytoplankton differ in that phytoplankton can:

Correct AnswerverifiedShow Answer

A major difference between bacteria and eukaryotes is that bacteria have:

Correct AnswerverifiedShow Answer

Methanogens are in the ________ category of extremophile.

Correct AnswerverifiedShow Answer

The core of some viruses is carbohydrate in nature.

Correct AnswerverifiedShow Answer

Which of the following would support the statement that bacteria represent the most fundamentally diverse group on Earth?

Correct AnswerverifiedShow Answer

Most bacteria present in the human intestines are pathogenic.

Correct AnswerverifiedShow Answer

The life cycle of viruses involves:

Correct AnswerverifiedShow Answer

Malaria is caused by a bacterium.

Correct AnswerverifiedShow Answer

Cells such as those of golden algae that form stable associations but do not take on specialized roles are described as:

Correct AnswerverifiedShow Answer

Which phrase most accurately describes the genome of most viruses?

Correct AnswerverifiedShow Answer

Which of the following areas/conditions would be favored by thermophiles?

Correct AnswerverifiedShow Answer

In what type of environment would you be most likely to find anaerobes?

Correct AnswerverifiedShow Answer

Which of the following is the best description of a virus?

Correct AnswerverifiedShow Answer

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Correct Answer
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The protists include photosynthetic orga...
View Answer

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