Question 1

Which of the following never have cell walls?

Accepted Answer

A)  algae 
B)  animal cells 
C)  archaea 
D)  bacteria 
E)  fungi 
A)  algae 
B)  animal cells 
C)  archaea 
D)  bacteria 
E)  fungi

Question 2

Which of the following prokaryotic cells contain an outer membrane?

Accepted Answer

A)  Gram-negative bacteria only 
B)  Gram-positive bacteria only 
C)  both Gram-positive and Gram-negative bacteria 
D)  archaea 
E)  all prokaryotes 
A)  Gram-negative bacteria only 
B)  Gram-positive bacteria only 
C)  both Gram-positive and Gram-negative bacteria 
D)  archaea 
E)  all prokaryotes

Question 3

Fragments of (LPS/NAM/NAG)released from Gram-negative bacteria into the bloodstream produce fever and shock.

Accepted Answer

The answer of Fragments of (LPS/NAM/NAG)released from Gram-negative bacteria into...

Question 4

Eukaryotic cells use a process known as (pinocytosis/phagocytosis/exocytosis)to obtain liquids from their environment.

Accepted Answer

The answer of Eukaryotic cells use a process known as...

Question 5

Bacterial ribosomes are composed of several polypeptides and

Accepted Answer

A)  three RNA molecules in two subunits. 
B)  three RNA molecules in three subunits. 
C)  two RNA molecules in two subunits. 
D)  two RNA molecules in a single complex. 
E)  one large RNA molecule in a single complex. 
A)  three RNA molecules in two subunits. 
B)  three RNA molecules in three subunits. 
C)  two RNA molecules in two subunits. 
D)  two RNA molecules in a single complex. 
E)  one large RNA molecule in a single complex.

Question 6

The smooth endoplasmic reticulum is the site of (protein/lipid/carbohydrate)synthesis.

Accepted Answer

The answer of The smooth endoplasmic reticulum is the site...

Question 7

The cells illustrated in Figure 3.1 are in a(n)________ environment.

Accepted Answer

A)  hypotonic 
B)  hypertonic 
C)  isotonic 
D)  fluid mosaic 
E)  passive 
A)  hypotonic 
B)  hypertonic 
C)  isotonic 
D)  fluid mosaic 
E)  passive

Question 8

The processes illustrated in Figure 3.4 do not require energy input.

Accepted Answer

A) True 
 B)False

Question 9

The presence of a cell (wall/membrane)enables bacterial and plant cells to resist the effects of hypotonic solutions.

Accepted Answer

The answer of The presence of a cell (wall/membrane)enables bacterial...

Question 10

What is the function of the cellular structure indicated by "m" in Figure 3.3?

Accepted Answer

A)  ATP synthesis 
B)  protein synthesis 
C)  synthesis of lipids 
D)  packaging of materials for export 
E)  cell movement and mitosis 
A)  ATP synthesis 
B)  protein synthesis 
C)  synthesis of lipids 
D)  packaging of materials for export 
E)  cell movement and mitosis

Question 11

The cytoplasmic membranes of ________ contain unbranched phospholipids and proteins.

Accepted Answer

A)  archaeal cells 
B)  bacterial cells 
C)  eukaryotic cells 
D)  both bacterial and eukaryotic cells 
E)  archaeal, bacterial, and eukaryotic cells 
A)  archaeal cells 
B)  bacterial cells 
C)  eukaryotic cells 
D)  both bacterial and eukaryotic cells 
E)  archaeal, bacterial, and eukaryotic cells

Question 12

Compare and contrast archaea and bacteria,with particular attention to the features that lead to their placement in separate taxa.

Accepted Answer

Bacterial cell walls are composed of pep

Question 13

ATP is expended in which of the following processes?

Accepted Answer

A)  facilitated diffusion 
B)  diffusion 
C)  group translocation 
D)  active transport 
E)  both active transport and group translocation 
A)  facilitated diffusion 
B)  diffusion 
C)  group translocation 
D)  active transport 
E)  both active transport and group translocation

Question 14

Short,hairlike structures used only by eukaryotic cells for movement are called

Accepted Answer

A)  pili. 
B)  flagella. 
C)  fimbriae. 
D)  pseudopodia. 
E)  cilia. 
A)  pili. 
B)  flagella. 
C)  fimbriae. 
D)  pseudopodia. 
E)  cilia.

Question 15

Eukaryotic ribosomes are composed of 50S and 30S subunits.

Accepted Answer

A) True 
 B)False

Question 16

In a(n)(hypertonic/isotonic/hypotonic)solution,an animal cell can gain so much water that it may burst.

Accepted Answer

The answer of In a(n)(hypertonic/isotonic/hypotonic)solution,an animal cell can gain so...

Question 17

Some bacteria have a water-soluble outer slime layer composed of

Accepted Answer

A)  carbohydrate. 
B)  lipid. 
C)  peptidoglycan. 
D)  protein. 
E)  lipoteichoic acid. 
A)  carbohydrate. 
B)  lipid. 
C)  peptidoglycan. 
D)  protein. 
E)  lipoteichoic acid.

Question 18

Both mitochondria and chloroplasts have inner membranes with much greater surface area than their outer membranes.Discuss the contribution of the extensive inner membranes to the roles of these organelles.

Accepted Answer

Both organelles use metabolic processes

Question 19

Lipid-soluble molecules would be expected to cross the cytoplasmic membrane by which of the following processes?

Accepted Answer

A)  osmosis 
B)  facilitated diffusion 
C)  diffusion 
D)  active transport 
E)  group translocation 
A)  osmosis 
B)  facilitated diffusion 
C)  diffusion 
D)  active transport 
E)  group translocation

Question 20

Endocytosis and exocytosis are means of transport used by

Accepted Answer

A)  bacteria. 
B)  eukaryotes. 
C)  archaea. 
D)  all prokaryotes. 
E)  nothing; no cells use both processes. 
A)  bacteria. 
B)  eukaryotes. 
C)  archaea. 
D)  all prokaryotes. 
E)  nothing; no cells use both processes.

Exam 3: Cell Structure and Function

Which of the following never have cell walls?

Which of the following prokaryotic cells contain an outer membrane?

Fragments of (LPS/NAM/NAG)released from Gram-negative bacteria into the bloodstream produce fever and shock.

Eukaryotic cells use a process known as (pinocytosis/phagocytosis/exocytosis)to obtain liquids from their environment.

Bacterial ribosomes are composed of several polypeptides and

The smooth endoplasmic reticulum is the site of (protein/lipid/carbohydrate)synthesis.

The cells illustrated in Figure 3.1 are in a(n)________ environment.

The processes illustrated in Figure 3.4 do not require energy input.

The presence of a cell (wall/membrane)enables bacterial and plant cells to resist the effects of hypotonic solutions.

What is the function of the cellular structure indicated by "m" in Figure 3.3?

The cytoplasmic membranes of ________ contain unbranched phospholipids and proteins.

Compare and contrast archaea and bacteria,with particular attention to the features that lead to their placement in separate taxa.

ATP is expended in which of the following processes?

Short,hairlike structures used only by eukaryotic cells for movement are called

Eukaryotic ribosomes are composed of 50S and 30S subunits.

In a(n)(hypertonic/isotonic/hypotonic)solution,an animal cell can gain so much water that it may burst.

Some bacteria have a water-soluble outer slime layer composed of

Both mitochondria and chloroplasts have inner membranes with much greater surface area than their outer membranes.Discuss the contribution of the extensive inner membranes to the roles of these organelles.

Lipid-soluble molecules would be expected to cross the cytoplasmic membrane by which of the following processes?

Endocytosis and exocytosis are means of transport used by

A Brief History of Microbiology

The Chemistry of Microbiology

Microscopy, Staining, and Classification

Microbial Metabolism

Microbial Nutrition and Growth

Microbial Genetics

Recombinant DNA Technology

Controlling Microbial Growth in the Environment

Controlling Microbial Growth in the Body: Antimicrobial Drugs

Characterizing and Classifying Prokaryotes

Characterizing and Classifying Eukaryotes

Characterizing and Classifying Viruses, Viroids, and Prions

Infection, Infectious Diseases, and Epidemiology

Innate Immunity

Adaptive Immunity

Immunization and Immune Testing

Immune Disorders

Pathogenic Gram Positive Bacteria

Pathogenic Gram-Negative Cocci and Bacilli

Rickettsias, Chlamydias, Spirochetes, and Vibrios

Pathogenic Fungi

Parasitic Protozoa, Helminths, and Arthropod Vectors

Pathogenic DNA Viruses

Pathogenic RNA Viruses

Applied and Environmental Microbiology

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