Question 1

Each of the following statements concerning the gram- positive cell wall is true EXCEPT

Accepted Answer

A)   it protects the cell in a hypertonic environment.
B)   it is sensitive to lysozyme.
C)   it maintains the shape of the cell.
D)   it is sensitive to penicillin.
E)   it contains teichoic acids.F) D) and E)
G) A) and D)

Question 2

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

Accepted Answer

A)   a
B)   b
C)   both a and b
D)   neither a nor b
E)   The answer cannot be determined based on the information provided.F) A) and C)
G) D) and E)

Question 3

Which of the following is NOT a typical characteristic of most bacterial plasma membranes?

Accepted Answer

A)   contains cholesterol
B)   contains proteins
C)   composed of a phospholipid bilayer
D)   site of energy production
E)   is selectively permeableF) B) and E)
G) None of the above

Question 4

Where are phospholipids most likely found in a eukaryotic cell?

Accepted Answer

A)   the plasma membrane
B)   surrounding flagella
C)   ribosomes
D)   around organelles
E)   the plasma membrane, around organelles, and surrounding flagellaF) All of the above
G) A) and C)

Question 5

Which of the following is NOT part of the passive transport process?

Accepted Answer

A)   concentration gradient
B)   ATP
C)   transporter proteins
D)   aquaporins
E)   plasma membraneF) C) and D)
G) A) and B)

Question 6

Which of the following statements is correct about diffusion?

Accepted Answer

A)   It may require a transport protein.
B)   It requires an expenditure of energy by the cell.
C)   It is a passive process in which molecules move from a region of higher concentration to a region of lower concentration.
D)   It involves movement of molecules down a concentration gradient and may require a transport protein.
E)   It is an active process in which molecules move from a region of lower concentration to one of higher concentration.F) A) and B)
G) A) and C)

Question 7

Spheroplasts, protoplasts, and mycoplasms are bacterial cells without cell walls.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following pairs is mismatched?

Accepted Answer

A)   mitochondria - ATP production
B)   lysosome - digestive enzymes
C)   Golgi complex - secretion
D)   centrosome - food storage
E)   endoplasmic reticulum - internal transportF) B) and D)
G) A) and B)

Question 9

Oxygen crosses a plasma membrane

Accepted Answer

A)   through simple diffusion.
B)   with the help of a nonspecific transporter.
C)   by osmosis.
D)   through facilitated diffusion.
E)   through porins.F) A) and C)
G) B) and E)

Question 10

Functions of the glycocalyx include all of the following EXCEPT

Accepted Answer

A)   biofilm formation.
B)   source of nutrition.
C)   increased virulence.
D)   binary fission.
E)   protection against dehydration.F) A) and B)
G) C) and E)

Question 11

The internal structure of eukaryotic cilia and flagella are the same.

Accepted Answer

A) True 
 B)False

Question 12

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

Accepted Answer

A)   moves materials from a lower to a higher concentration.
B)   requires transporter proteins.
C)   requires ATP.
D)   does not require ATP.
E)   moves materials from a higher to a lower concentration.F) A) and D)
G) C) and D)

Question 13

What will happen if a bacterial cell is placed in distilled water with lysozyme?

Accepted Answer

A)   The cell will plasmolyze.
B)   Water will leave the cell.
C)   Lysozyme will diffuse into the cell.
D)   The cell will undergo osmotic lysis.
E)   No change will result; the solution is isotonic.F) C) and D)
G) A) and E)

Question 14

In bacteria, photosynthetic pigments are found in

Accepted Answer

A)   cytoplasm.
B)   chloroplasts.
C)   ribosomes.
D)   chromatophores.
E)   mesosomes.F) A) and C)
G) A) and B)

Question 15

Which of the following statements is TRUE?

Accepted Answer

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

Question 16

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)   The answer cannot be determined based on the information provided.F) C) and D)
G) A) and B)

Question 17

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

Accepted Answer

A)   a
B)   b
C)   both a and b
D)   neither a nor b
E)   The answer cannot be determined based on the information provided.F) All of the above
G) None of the above

Question 18

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

Accepted Answer

A)   has 9 pairs + 2 flagella.
B)   lives in an extreme environment.
C)   has a mitochondrion.
D)   has a cell wall.
E)   has cilia.F) A) and D)
G) A) and E)

Question 19

In a hypertonic solution, a bacterial cell will typically

Accepted Answer

A)   stay the same.
B)   plasmolyze.
C)   lyse.
D)   burst.
E)   osmolyze.F) B) and E)
G) A) and D)

Question 20

Figure 4.3
 
-In Figure 4.3, which diagram of a cell wall contains teichoic acids?

Accepted Answer

A)   a
B)   b
C)   both a and b
D)   neither a nor b
E)   The answer cannot be determined based on the information provided.F) C) and D)
G) A) and B)

Exam 4: Functional Anatomy of Prokaryotic and Eukaryotic Cells

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

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In a hypertonic solution, a bacterial cell will typically

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Which of the following is NOT part of the passive transport process?

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Figure 4.3 -In Figure 4.3, which diagram of a cell wall contains teichoic acids?

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Which of the following is NOT a typical characteristic of most bacterial plasma membranes?

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

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In bacteria, photosynthetic pigments are found in

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Which of the following statements is correct about diffusion?

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Which of the following pairs is mismatched?

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Where are phospholipids most likely found in a eukaryotic cell?

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Functions of the glycocalyx include all of the following EXCEPT

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Which of the following statements is TRUE?

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What will happen if a bacterial cell is placed in distilled water with lysozyme?

Correct AnswerverifiedShow Answer

The internal structure of eukaryotic cilia and flagella are the same.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Spheroplasts, protoplasts, and mycoplasms are bacterial cells without cell walls.

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Oxygen crosses a plasma membrane

Correct AnswerverifiedShow Answer

Each of the following statements concerning the gram- positive cell wall is true EXCEPT

Correct AnswerverifiedShow Answer

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