Question 1

Benthic algae are found

Accepted Answer

A)  near the ocean shore. 
B)  floating on the ocean surface. 
C)  only in fresh water. 
D)  in the deep parts of the ocean. 
A)  near the ocean shore. 
B)  floating on the ocean surface. 
C)  only in fresh water. 
D)  in the deep parts of the ocean. A

Question 2

All of the following characteristics are typical for microorganisms EXCEPT

Accepted Answer

A)  Generally consist of single cell or groups of cells with little specialization. 
B)  Generally reproduce by asexual reproduction. 
C)  Most are parasites. 
D)  Generally live in moist environments. 
A)  Generally consist of single cell or groups of cells with little specialization. 
B)  Generally reproduce by asexual reproduction. 
C)  Most are parasites. 
D)  Generally live in moist environments. C

Question 3

A vector is

Accepted Answer

A)  the organism that causes a disease. 
B)  the organism that is harmed by a disease organism. 
C)  the organism that carries a disease organism from one host to another. 
D)  the organism that produces antibiotics. 
A)  the organism that causes a disease. 
B)  the organism that is harmed by a disease organism. 
C)  the organism that carries a disease organism from one host to another. 
D)  the organism that produces antibiotics. C

Question 4

Your large intestine is filled with bacteria that do you no harm. Therefore, they are referred to as _____________ bacteria.

Accepted Answer

A)  pathogenic 
B)  mutualistic 
C)  commensal 
D)  parasitic 
A)  pathogenic 
B)  mutualistic 
C)  commensal 
D)  parasitic

Question 5

____ do NOT belong to the kingdom Protista.

Accepted Answer

A)  Water molds 
B)  Algae 
C)  Protozoa 
D)  Yeasts 
A)  Water molds 
B)  Algae 
C)  Protozoa 
D)  Yeasts

Question 6

Which of the following is a major kind of benthic algae?

Accepted Answer

A)  Diatom 
B)  Brown algae 
C)  Cyanobacteria 
D)  Radiolarians 
A)  Diatom 
B)  Brown algae 
C)  Cyanobacteria 
D)  Radiolarians

Question 7

The control of Bacteria by antibiotics is often ineffective because

Accepted Answer

A)  Bacteria mutate. 
B)  Bacteria destroy antibiotics. 
C)  Bacteria produce cell walls. 
D)  Bacteria reproduce asexually. 
A)  Bacteria mutate. 
B)  Bacteria destroy antibiotics. 
C)  Bacteria produce cell walls. 
D)  Bacteria reproduce asexually.

Question 8

This process involves the use of naturally occurring microbes to break down unwanted or dangerous materials.

Accepted Answer

A)  biomagnification 
B)  bioremediation 
C)  bioamplification 
D)  bioassimilation 
A)  biomagnification 
B)  bioremediation 
C)  bioamplification 
D)  bioassimilation

Question 9

Which of the following organisms has cell walls containing silica?

Accepted Answer

A)  Ciliated protozoa 
B)  Archaea 
C)  Diatoms 
D)  Dinoflagellates 
A)  Ciliated protozoa 
B)  Archaea 
C)  Diatoms 
D)  Dinoflagellates

Question 10

Microbes of the same species that live together and cooperate in some way are

Accepted Answer

A)  mutualistic. 
B)  colonial. 
C)  commensal. 
D)  opportunistic. 
A)  mutualistic. 
B)  colonial. 
C)  commensal. 
D)  opportunistic.

Question 11

The method of reproduction used most frequently by microorganisms

Accepted Answer

A)  is sexual reproduction. 
B)  is parthenogenesis. 
C)  is asexual reproduction. 
D)  involves meiosis. 
A)  is sexual reproduction. 
B)  is parthenogenesis. 
C)  is asexual reproduction. 
D)  involves meiosis.

Question 12

Slime molds and water molds are not considered to be fungi because

Accepted Answer

A)  they are not decomposers. 
B)  they do not have chitin in their cell walls. 
C)  their reproductive cells do not have flagella. 
D)  they do not have the ability to do photosynthesis. 
A)  they are not decomposers. 
B)  they do not have chitin in their cell walls. 
C)  their reproductive cells do not have flagella. 
D)  they do not have the ability to do photosynthesis.

Question 13

Members of this group of protozoa are decomposers responsible for these infectious diseases: giardiasis (gastroenteritis), trichomoniasis (sexually transmitted disease), and trypanosomiasis (sleeping sickness-Trypanosoma gambiense).

Accepted Answer

A)  flagellated protozoa 
B)  sarcodina 
C)  ciliates 
D)  All of these answers are correct. 
A)  flagellated protozoa 
B)  sarcodina 
C)  ciliates 
D)  All of these answers are correct.

Question 14

Organisms important in sewage treatment and nitrogen fixation belong to the domain

Accepted Answer

A)  Protista. 
B)  Fungi. 
C)  Bacteria. 
D)  Archaea. 
A)  Protista. 
B)  Fungi. 
C)  Bacteria. 
D)  Archaea.

Question 15

How are the algae economically important?

Accepted Answer

A)  They increase environmental calcium levels. 
B)  They decrease the population of harmful fungi. 
C)  They provide fiber in most diets. 
D)  They provide food additives. 
A)  They increase environmental calcium levels. 
B)  They decrease the population of harmful fungi. 
C)  They provide fiber in most diets. 
D)  They provide food additives.

Question 16

____ are the major producers in the ocean food chain.

Accepted Answer

A)  Benthic organisms 
B)  Phytoplankton 
C)  Fungi 
D)  Water molds 
A)  Benthic organisms 
B)  Phytoplankton 
C)  Fungi 
D)  Water molds

Question 17

Nonphotosynthetic cells with cell walls belong to the Kingdom

Accepted Answer

A)  Plantae. 
B)  Animalia. 
C)  Fungi. 
D)  Protista. 
A)  Plantae. 
B)  Animalia. 
C)  Fungi. 
D)  Protista.

Question 18

____ of the species of bacteria are pathogens.

Accepted Answer

A)  All 
B)  The majority 
C)  About half 
D)  A minority 
A)  All 
B)  The majority 
C)  About half 
D)  A minority

Question 19

Agar, widely used in microbiology growth media, is obtained from

Accepted Answer

A)  Protozoa. 
B)  Mold. 
C)  Bacteria. 
D)  Algae. 
A)  Protozoa. 
B)  Mold. 
C)  Bacteria. 
D)  Algae.

Question 20

Algae differ from protozoa in that

Accepted Answer

A)  algae are plants and protozoa are animals. 
B)  protozoa are motile and algae are nonmotile. 
C)  algae are autotrophs and protozoa are heterotrophs. 
D)  algae are aerobic and protozoa are anaerobic. 
A)  algae are plants and protozoa are animals. 
B)  protozoa are motile and algae are nonmotile. 
C)  algae are autotrophs and protozoa are heterotrophs. 
D)  algae are aerobic and protozoa are anaerobic.

Exam 21: The Nature of Microorganisms

Benthic algae are found

All of the following characteristics are typical for microorganisms EXCEPT

A vector is

Your large intestine is filled with bacteria that do you no harm. Therefore, they are referred to as _____________ bacteria.

____ do NOT belong to the kingdom Protista.

Which of the following is a major kind of benthic algae?

The control of Bacteria by antibiotics is often ineffective because

This process involves the use of naturally occurring microbes to break down unwanted or dangerous materials.

Which of the following organisms has cell walls containing silica?

Microbes of the same species that live together and cooperate in some way are

The method of reproduction used most frequently by microorganisms

Slime molds and water molds are not considered to be fungi because

Members of this group of protozoa are decomposers responsible for these infectious diseases: giardiasis (gastroenteritis), trichomoniasis (sexually transmitted disease), and trypanosomiasis (sleeping sickness-Trypanosoma gambiense).

Organisms important in sewage treatment and nitrogen fixation belong to the domain

How are the algae economically important?

____ are the major producers in the ocean food chain.

Nonphotosynthetic cells with cell walls belong to the Kingdom

____ of the species of bacteria are pathogens.

Agar, widely used in microbiology growth media, is obtained from

Algae differ from protozoa in that

What Is Biology

The Basics of Life: Chemistry

Organic Molecules: The Molecules of Life

Cell Structure and Function

Enzymes, Coenzymes, and Energy

Biochemical Pathways: Cellular Respiration

Biochemical Pathways: Photosynthesis

DNA and RNA: The Molecular Basis of Heredity

Cell Division: Proliferation and Reproduction

Patterns of Inheritance

Applications of Biotechnology

Diversity Within Species and Population Genetics

Evolution and Natural Selection

The Formation of Species and Evolutionary Change

Ecosystem Dynamics: The Flow of Energy and Matter

Community Interactions

Population Ecology

Evolutionary and Ecological Aspects of Behavior

The Origin of Life and the Evolution of Cells

The Classification and Evolution of Organisms

The Plant Kingdom

The Animal Kingdom

Materials Exchange in the Body

Nutrition: Food and Diet

The Bodys Control Mechanisms and Immunity

Human Reproduction, Sex, and Sexuality

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