Question 1

Figure 4.3
  
-In Figure 4.3, which diagram of a cell wall is resistant to many antibiotics (e.g., penicillin)?

Accepted Answer

A)  a 
B)  b 
C)  Both a and b 
D)  Neither a nor b 
E)  Can't tell 
A)  a 
B)  b 
C)  Both a and b 
D)  Neither a nor b 
E)  Can't tell A

Question 2

Which one of the following pairs is not correctly matched?

Accepted Answer

A)  Gas vacuoles - flotation 
B)  Lipid inclusions - energy reserve 
C)  Sulfur granules - energy reserve 
D)  Metachromatic granules - phosphate storage 
E)  Ribosomes - protein storage 
A)  Gas vacuoles - flotation 
B)  Lipid inclusions - energy reserve 
C)  Sulfur granules - energy reserve 
D)  Metachromatic granules - phosphate storage 
E)  Ribosomes - protein storage E

Question 3

Which of the following is not true about gram- negative cell walls?

Accepted Answer

A)  They are sensitive to penicillin. 
B)  Their Gram reaction is due to the outer membrane. 
C)  They protect the cell in a hypotonic environment. 
D)  They are toxic to humans. 
E)  They have an extra outer layer composed of lipoproteins, lipopolysaccharides, and phospholipids. 
A)  They are sensitive to penicillin. 
B)  Their Gram reaction is due to the outer membrane. 
C)  They protect the cell in a hypotonic environment. 
D)  They are toxic to humans. 
E)  They have an extra outer layer composed of lipoproteins, lipopolysaccharides, and phospholipids. A

Question 4

Figure 4.1
  
-In Figure 4.1, which drawing is streptococci?

Accepted Answer

A)  a 
B)  b 
C)  c 
D)  d 
E)  e 
A)  a 
B)  b 
C)  c 
D)  d 
E)  e

Question 5

The bacteria on the outside of termite protozoa

Accepted Answer

A)  Propel the protozoan. 
B)  Digest cellulose. 
C)  Are transient microbiota. 
D)  Steer the protozoan to food. 
E)  None of the above 
A)  Propel the protozoan. 
B)  Digest cellulose. 
C)  Are transient microbiota. 
D)  Steer the protozoan to food. 
E)  None of the above

Question 6

What will happen if a bacterial cell is placed in 10% NaCl with penicillin?

Accepted Answer

A)  Water will enter the cell. 
B)  Penicillin will diffuse into the cell. 
C)  The cell will plasmolyze. 
D)  The cell will undergo osmotic lysis. 
E)  No change will result; the solution is isotonic. 
A)  Water will enter the cell. 
B)  Penicillin will diffuse into the cell. 
C)  The cell will plasmolyze. 
D)  The cell will undergo osmotic lysis. 
E)  No change will result; the solution is isotonic.

Question 7

Which of the following statements is true?

Accepted Answer

A)  Endospores allow a cell to survive environmental changes. 
B)  A cell produces one endospore and keeps growing. 
C)  Endospores are for reproduction. 
D)  A cell can produce many endospores. 
E)  Endospores are easily stained in a Gram stain. 
A)  Endospores allow a cell to survive environmental changes. 
B)  A cell produces one endospore and keeps growing. 
C)  Endospores are for reproduction. 
D)  A cell can produce many endospores. 
E)  Endospores are easily stained in a Gram stain.

Question 8

Which of the following is not a structure found in prokaryotic cells?

Accepted Answer

A)  Cilia 
B)  Axial filament 
C)  Pili 
D)  Flagella 
E)  Peritrichous flagella 
A)  Cilia 
B)  Axial filament 
C)  Pili 
D)  Flagella 
E)  Peritrichous flagella

Question 9

The difference between simple diffusion and facilitated diffusion is that facilitated diffusion

Accepted Answer

A)  Can move materials from a lower to a higher concentration. 
B)  Requires transporter proteins. 
C)  Requires ATP. 
D)  Doesn't require ATP. 
E)  Can move materials from a higher to a lower concentration. 
A)  Can move materials from a lower to a higher concentration. 
B)  Requires transporter proteins. 
C)  Requires ATP. 
D)  Doesn't require ATP. 
E)  Can move materials from a higher to a lower concentration.

Question 10

Which of the following is not a distinguishing characteristic of prokaryotic cells?

Accepted Answer

A)  They have cell walls containing peptidoglycan. 
B)  Their DNA is not enclosed within a membrane. 
C)  They lack membrane- enclosed organelles. 
D)  Their DNA is not associated with histones. 
E)  None of the above. 
A)  They have cell walls containing peptidoglycan. 
B)  Their DNA is not enclosed within a membrane. 
C)  They lack membrane- enclosed organelles. 
D)  Their DNA is not associated with histones. 
E)  None of the above.

Question 11

You have isolated a motile, gram- positive cell with no visible nucleus. You can safely assume that the cell

Accepted Answer

A)  Has a nucleus. 
B)  Lives in an extreme environment. 
C)  Has a cell wall. 
D)  Has a mitochondrion. 
E)  Has 9 pairs + 2 flagella. 
A)  Has a nucleus. 
B)  Lives in an extreme environment. 
C)  Has a cell wall. 
D)  Has a mitochondrion. 
E)  Has 9 pairs + 2 flagella.

Question 12

The best definition of osmotic pressure is

Accepted Answer

A)  The movement of a substance across a semi- permeable membrane from a higher to a lower concentration. 
B)  The movement of solute molecules from a higher to a lower concentration. 
C)  The active transport of a substance out of a cell to maintain equilibrium. 
D)  The movement of solute molecules from a lower to a higher concentration across a semi- permeable membrane. 
E)  The force with which a solvent moves across a semi- permeable membrane from a higher to a lower concentration. 
A)  The movement of a substance across a semi- permeable membrane from a higher to a lower concentration. 
B)  The movement of solute molecules from a higher to a lower concentration. 
C)  The active transport of a substance out of a cell to maintain equilibrium. 
D)  The movement of solute molecules from a lower to a higher concentration across a semi- permeable membrane. 
E)  The force with which a solvent moves across a semi- permeable membrane from a higher to a lower concentration.

Question 13

Figure 4.3
  
-In Figure 4.3, which diagram of a cell wall is decolorized by acetone- alcohol?

Accepted Answer

A)  a 
B)  b 
C)  Both a and b 
D)  Neither a nor b 
E)  Can't tell 
A)  a 
B)  b 
C)  Both a and b 
D)  Neither a nor b 
E)  Can't tell

Question 14

Figure 4.3
  
-In Figure 4.3, which diagram of a cell wall is a toxic cell wall?

Accepted Answer

A)  a 
B)  b 
C)  Both a and b 
D)  Neither a nor b 
E)  Can't tell 
A)  a 
B)  b 
C)  Both a and b 
D)  Neither a nor b 
E)  Can't tell

Question 15

Which of the following is not a characteristic of the plasma membrane?

Accepted Answer

A)  Maintains cell shape 
B)  The site of cell wall formation 
C)  Composed of a phospholipid bilayer 
D)  Contains proteins 
E)  Selectively permeable 
A)  Maintains cell shape 
B)  The site of cell wall formation 
C)  Composed of a phospholipid bilayer 
D)  Contains proteins 
E)  Selectively permeable

Question 16

Which of the following is generally not true of prokaryotic cells?

Accepted Answer

A)  They possess 80S ribosomes. 
B)  They reproduce by binary fission. 
C)  They are motile by means of flagella. 
D)  They have a semirigid cell wall. 
E)  None of the above. 
A)  They possess 80S ribosomes. 
B)  They reproduce by binary fission. 
C)  They are motile by means of flagella. 
D)  They have a semirigid cell wall. 
E)  None of the above.

Question 17

By which of the following mechanisms can a cell transport a substance from a lower to a higher concentration?

Accepted Answer

A)  Extracellular enzymes 
B)  Simple diffusion 
C)  Facilitated diffusion 
D)  Active transport 
E)  Any of the above 
A)  Extracellular enzymes 
B)  Simple diffusion 
C)  Facilitated diffusion 
D)  Active transport 
E)  Any of the above

Question 18

Fimbriae and pili differ in that pili

Accepted Answer

A)  Are used to transfer DNA. 
B)  Are composed of flagellin. 
C)  Are used for asexual reproduction. 
D)  Are used for attachment. 
E)  Are composed of pilin. 
A)  Are used to transfer DNA. 
B)  Are composed of flagellin. 
C)  Are used for asexual reproduction. 
D)  Are used for attachment. 
E)  Are composed of pilin.

Question 19

Which of the following is not true about the glycocalyx?

Accepted Answer

A)  It may be composed of polysaccharide. 
B)  It is used to adhere to surfaces. 
C)  It may be composed of polypeptide. 
D)  It may be responsible for virulence. 
E)  None of the above. 
A)  It may be composed of polysaccharide. 
B)  It is used to adhere to surfaces. 
C)  It may be composed of polypeptide. 
D)  It may be responsible for virulence. 
E)  None of the above.

Question 20

Figure 4.1
  
-In Figure 4.1, which drawing is bacilli?

Accepted Answer

A)  a 
B)  b 
C)  c 
D)  d 
E)  e 
A)  a 
B)  b 
C)  c 
D)  d 
E)  e

Exam 4: Functional Anatomy of Prokaryotic and Eukaryotic Cells

Figure 4.3 -In Figure 4.3, which diagram of a cell wall is resistant to many antibiotics (e.g., penicillin)?

Which one of the following pairs is not correctly matched?

Which of the following is not true about gram- negative cell walls?

Figure 4.1 -In Figure 4.1, which drawing is streptococci?

The bacteria on the outside of termite protozoa

What will happen if a bacterial cell is placed in 10% NaCl with penicillin?

Which of the following statements is true?

Which of the following is not a structure found in prokaryotic cells?

The difference between simple diffusion and facilitated diffusion is that facilitated diffusion

Which of the following is not a distinguishing characteristic of prokaryotic cells?

You have isolated a motile, gram- positive cell with no visible nucleus. You can safely assume that the cell

The best definition of osmotic pressure is

Figure 4.3 -In Figure 4.3, which diagram of a cell wall is decolorized by acetone- alcohol?

Figure 4.3 -In Figure 4.3, which diagram of a cell wall is a toxic cell wall?

Which of the following is not a characteristic of the plasma membrane?

Which of the following is generally not true of prokaryotic cells?

By which of the following mechanisms can a cell transport a substance from a lower to a higher concentration?

Fimbriae and pili differ in that pili

Which of the following is not true about the glycocalyx?

Figure 4.1 -In Figure 4.1, which drawing is bacilli?

The Microbial World and You

Chemical Principles

Observing Microorganisms Through a Microscope

Microbial Metabolism

Microbial Growth

The Control of Microbial Growth

Microbial Genetics

Biotechnology and Recombinant DNA

Classification of Microorganisms

The Prokaryotes: Domains Bacteria and Archaea

The Eukaryotes: Fungi, Algae, Protozoa, and Helminths

Viruses, Viroids, and Prions

Principles of Disease and Epidemiology

Microbial Mechanisms of Pathogenicity

Innate Immunity: Nonspecific Defenses of the Host

Adaptive Immunity: Specific Defenses of the Host

Practical Applications of Immunology

Disorders Associated With the Immune System

Antimicrobial Drugs

Microbial Diseases of the Skin and Eyes

Microbial Diseases of the Nervous System

Microbial Diseases of the Cardiovascular and Lymphatic Systems

Microbial Diseases of the Respiratory System

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Microbial Diseases of the Urinary and Reproductive Systems

Environmental Microbiology

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