Question 1

The cell membranes of bacteria and eukaryotes are quite similar, differing only in _______.

Accepted Answer

A)  being selectively permeable 
B)  the presence of sterols 
C)  the ability to transport wastes out of the cell 
D)  the presence of proteins in the bilayer 
E)  the presence of phospholipids 
A)  being selectively permeable 
B)  the presence of sterols 
C)  the ability to transport wastes out of the cell 
D)  the presence of proteins in the bilayer 
E)  the presence of phospholipids B

Question 2

Which organelle contains cristae where enzymes and electron carriers for aerobic respiration are found?

Accepted Answer

A)  Golgi apparatus 
B)  Mitochondrion 
C)  Endoplasmic reticulum 
D)  Lysosome 
E)  Chloroplast 
A)  Golgi apparatus 
B)  Mitochondrion 
C)  Endoplasmic reticulum 
D)  Lysosome 
E)  Chloroplast B

Question 3

Cilia are exhibited by certain ______.

Accepted Answer

A)  protozoa 
B)  fungi 
C)  viruses 
D)  bacteria 
E)  algae 
A)  protozoa 
B)  fungi 
C)  viruses 
D)  bacteria 
E)  algae A

Question 4

P?esteria is a/an ______ that produces a toxin harmful to humans.

Accepted Answer

A)  protozoan 
B)  fungus 
C)  endospore 
D)  alga 
E)  helminth 
A)  protozoan 
B)  fungus 
C)  endospore 
D)  alga 
E)  helminth

Question 5

Rough endoplasmic reticulum is studded with ribosomes.

Accepted Answer

A) True 
 B)False

Question 6

In producing beer and wine, humans have exploited the microbial ability to ferment sugar to alcohol. The microbes responsible for this process are ______.

Accepted Answer

A)  fungi 
B)  algae 
C)  protozoans 
D)  bacteria 
A)  fungi 
B)  algae 
C)  protozoans 
D)  bacteria

Question 7

In humans, fungi can only infect the skin.

Accepted Answer

A) True 
 B)False

Question 8

You are attempting to identify the type of helminth that has been isolated from a patient stool sample. The most important consideration to make this distinction is to _______.

Accepted Answer

A)  look at the gross anatomy to determine if the body is segmented or not 
B)  examine the sample to see if microscopic eggs are present 
C)  determine if the cells are eukaryotic or bacterial by looking for nuclei 
D)  ask the patient about recent food and water consumption 
A)  look at the gross anatomy to determine if the body is segmented or not 
B)  examine the sample to see if microscopic eggs are present 
C)  determine if the cells are eukaryotic or bacterial by looking for nuclei 
D)  ask the patient about recent food and water consumption

Question 9

The series of tunnel-like membranes functioning in transport and storage are the ______.

Accepted Answer

A)  chloroplasts 
B)  Golgi apparatus 
C)  mitochondria 
D)  lysosomes 
E)  endoplasmic reticulum 
A)  chloroplasts 
B)  Golgi apparatus 
C)  mitochondria 
D)  lysosomes 
E)  endoplasmic reticulum

Question 10

Chitin is a chemical component of the cell walls of ______.

Accepted Answer

A)  bacteria 
B)  protozoa 
C)  fungi 
D)  algae 
E)  helminths 
A)  bacteria 
B)  protozoa 
C)  fungi 
D)  algae 
E)  helminths

Question 11

Which of the following organisms has a cell wall?

Accepted Answer

A)  Enterobius vermicularis 
B)  Entamoeba histolytica 
C)  Trypanosoma cruzi 
D)  Candida albicans 
A)  Enterobius vermicularis 
B)  Entamoeba histolytica 
C)  Trypanosoma cruzi 
D)  Candida albicans

Question 12

Biologists have found evidence that eukaryotic cells evolved from prokaryotic organisms by a process of intracellular ______.

Accepted Answer

A)  symbiosis 
B)  commensalism 
C)  parasitism 
D)  mutualism 
A)  symbiosis 
B)  commensalism 
C)  parasitism 
D)  mutualism

Question 13

Protozoan endoplasm contains ______.

Accepted Answer

A)  ?agella 
B)  ectoplasm 
C)  cilia 
D)  oral grooves 
E)  mitochondria 
A)  ?agella 
B)  ectoplasm 
C)  cilia 
D)  oral grooves 
E)  mitochondria

Question 14

The drug cytochalasin targets actin ﬁlaments in the cytoskeleton, preventing them from forming. Treatment of a cell with cytochalasin would result in its inability to ______.

Accepted Answer

A)  form cellular extensions 
B)  transport substances within the cell 
C)  form the nuclear envelope structure 
D)  prevent mutations in its chromosome 
A)  form cellular extensions 
B)  transport substances within the cell 
C)  form the nuclear envelope structure 
D)  prevent mutations in its chromosome

Question 15

Which of the following statements is correct?

Accepted Answer

A)  All saprobes are heterotrophic, but only some are parasitic. 
B)  All heterotrophs are fungi, and include both parasites and saprobes. 
C)  All fungi, whether parasite or saprobe, are heterotrophs. 
D)  All heterotrophs are parasites, but only some are saprobes. 
A)  All saprobes are heterotrophic, but only some are parasitic. 
B)  All heterotrophs are fungi, and include both parasites and saprobes. 
C)  All fungi, whether parasite or saprobe, are heterotrophs. 
D)  All heterotrophs are parasites, but only some are saprobes.

Question 16

Adulthood and mating of helminths occur in which host?

Accepted Answer

A)  Primary host 
B)  Secondary host 
C)  De?nitive host 
D)  Transport host 
E)  Mating occurs in all hosts. 
A)  Primary host 
B)  Secondary host 
C)  De?nitive host 
D)  Transport host 
E)  Mating occurs in all hosts.

Question 17

Eukaryotic ﬂagella differ from bacterial ﬂagella because only eukaryotic ﬂagella _______.

Accepted Answer

A)  contain microtubules 
B)  facilitate phototaxis 
C)  are used for cell motility 
D)  facilitate chemotaxis 
E)  are long, whip-like structures 
A)  contain microtubules 
B)  facilitate phototaxis 
C)  are used for cell motility 
D)  facilitate chemotaxis 
E)  are long, whip-like structures

Question 18

Protozoan cysts are _______.

Accepted Answer

A)  necessary for transmission to a new host 
B)  analogous to bacterial endospores 
C)  are produced by binary ﬁssion 
D)  the primary form of replication 
E)  part of all protozoan life cycles 
A)  necessary for transmission to a new host 
B)  analogous to bacterial endospores 
C)  are produced by binary ﬁssion 
D)  the primary form of replication 
E)  part of all protozoan life cycles

Question 19

The vesicle that originates from the Golgi apparatus and contains a variety of digestive enzymes is the ______.

Accepted Answer

A)  lysosome 
B)  magnetosome 
C)  inclusion 
D)  ribosome 
E)  centrosome 
A)  lysosome 
B)  magnetosome 
C)  inclusion 
D)  ribosome 
E)  centrosome

Question 20

The two major groups of helminths are the ______ and the ______.

Accepted Answer

A)  tapeworms; ?ukes 
B)  roundworms; pinworms 
C)  roundworms; ?atworms 
D)  cestodes; trematodes 
A)  tapeworms; ?ukes 
B)  roundworms; pinworms 
C)  roundworms; ?atworms 
D)  cestodes; trematodes

Exam 5: Eukaryotic Cells and Microorganisms

The cell membranes of bacteria and eukaryotes are quite similar, differing only in _______.

Which organelle contains cristae where enzymes and electron carriers for aerobic respiration are found?

Cilia are exhibited by certain ______.

P?esteria is a/an ______ that produces a toxin harmful to humans.

Rough endoplasmic reticulum is studded with ribosomes.

In producing beer and wine, humans have exploited the microbial ability to ferment sugar to alcohol. The microbes responsible for this process are ______.

In humans, fungi can only infect the skin.

You are attempting to identify the type of helminth that has been isolated from a patient stool sample. The most important consideration to make this distinction is to _______.

The series of tunnel-like membranes functioning in transport and storage are the ______.

Chitin is a chemical component of the cell walls of ______.

Which of the following organisms has a cell wall?

Biologists have found evidence that eukaryotic cells evolved from prokaryotic organisms by a process of intracellular ______.

Protozoan endoplasm contains ______.

The drug cytochalasin targets actin ﬁlaments in the cytoskeleton, preventing them from forming. Treatment of a cell with cytochalasin would result in its inability to ______.

Which of the following statements is correct?

Adulthood and mating of helminths occur in which host?

Eukaryotic ﬂagella differ from bacterial ﬂagella because only eukaryotic ﬂagella _______.

Protozoan cysts are _______.

The vesicle that originates from the Golgi apparatus and contains a variety of digestive enzymes is the ______.

The two major groups of helminths are the ______ and the ______.

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods for the Culturing of Microscopic Analysis of Microorganisms

Bacteria and Archaea

Viruses and Prions

Microbial Nutrition and Growth

Microbial Metabolism: the Chemical Crossroads of Life

Microbial Genetics

Genetic Analysis and Genetic Engineering

Physical and Chemical Control of Microbes

Antimicrobial Treatment

Microbe-Human Interactions: Health and Disease

Host Defenses I: Overview and Nonspecific Defenses

Host Defenses Ii: Specific Immunity and Immunization

Disorders in Immunity

Diagnosing Infections

Infectious Diseases Affecting the Skin and Eyes

Infectious Diseases Affecting the Nervous System

Infectious Diseases Affecting the Cardiovascular and Lymphatic Systems

Infectious Diseases Affecting the Respiratory System

Infectious Diseases Affecting the Gastrointestinal Tract

Infectious Diseases Affecting the Genitourinary System

Microbes and the Environment

Applied Microbiology and Food and Water Safety

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