Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

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 flagella

Question 3

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.

Question 4

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.

Question 5

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.

Question 6

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.

Question 7

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 permeable

Question 8

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.

Question 9

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.

Question 10

In bacteria, photosynthetic pigments are found in

Accepted Answer

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

Question 11

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.

Question 12

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 transport

Question 13

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.

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

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.

Question 16

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 membrane

Question 17

In a hypertonic solution, a bacterial cell will typically

Accepted Answer

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

Question 18

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.

Question 19

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.

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.

Exam 4: Functional Anatomy of Prokaryotic and Eukaryotic Cells

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

Where are phospholipids most likely found in a eukaryotic cell?

Which of the following statements is correct about diffusion?

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

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

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

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

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

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

In bacteria, photosynthetic pigments are found in

Which of the following statements is TRUE?

Which of the following pairs is mismatched?

Functions of the glycocalyx include all of the following EXCEPT

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

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

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

In a hypertonic solution, a bacterial cell will typically

Oxygen crosses a plasma membrane

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

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