Question 1

The cytoplasmic membranes of __________ contain 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

Question 2

Chloroplasts differ from mitochondria in that they have

Accepted Answer

A)   DNA.
B)   two lipid bilayers.
C)   70S ribosomes.
D)   light-harvesting pigments.
E)   cristae.

Question 3

Formation of a biofilm may contribute to bacteria's ability to cause disease.

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

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

Question 5

Which of the following statements concerning the endosymbiotic theory is FALSE?

Accepted Answer

A)   Eukaryotes were formed from the union of small anaerobic cells by larger aerobic cells.
B)   Mitochondria and chloroplasts can divide independently of the cell.
C)   Mitochondria and chloroplasts have their own DNA and ribosomes.
D)   The cristae of mitochondria evolved from the cytoplasmic membrane of prokaryotes.
E)   The endosymbiotic theory is not universally accepted.

Question 6

Describe how the structure of the bacterial cytoplasmic membrane relates to its function of selective permeability.

Accepted Answer

The structure and function of the cytopl...

Question 7

A bacterial cell moving toward light would be an example of

Accepted Answer

A)   tumbles.
B)   positive phototaxis.
C)   negative phototaxis.
D)   positive chemotaxis.
E)   negative chemotaxis.

Question 8

The glycocalyx of a eukaryotic cell performs all of the following functions EXCEPT

Accepted Answer

A)   protection against dehydration.
B)   anchoring cells to each other.
C)   cellular recognition and communication.
D)   transfer of genetic material between cells.
E)   strengthening the cell surface.

Question 9

Membrane rafts are found in the cytoplasmic membranes of

Accepted Answer

A)   archaea.
B)   bacteria.
C)   eukaryotes.
D)   both archaea and bacteria.
E)   both archaea and eukaryotes.

Question 10

Endospores survive a variety of harsh conditions in part because of the presence of

Accepted Answer

A)   mycolic acid.
B)   lipopolysaccharide.
C)   hopanoids.
D)   dipicolinic acid.
E)   glycoproteins.

Question 11

The cell walls of __________ contain peptidoglycan.

Accepted Answer

A)   archaea
B)   bacteria
C)   eukaryotes
D)   prokaryotes
E)   bacteria and eukaryotes

Question 12

Which of the following molecules would be expected to cross the cytoplasmic membrane rapidly and without the use of transport proteins?

Accepted Answer

A)   large molecules
B)   ions
C)   small hydrophobic molecules
D)   small hydrophilic molecules
E)   both ions and hydrophilic molecules

Question 13

When cells are placed in a hypertonic solution, they lose water and shrivel. This process is called

Accepted Answer

A)   crenation.
B)   endocytosis.
C)   passive transport.
D)   periplasm.
E)   plasmalemma.

Question 14

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 15

Which of the following statements concerning osmosis is FALSE?

Accepted Answer

A)   Osmosis requires a selectively permeable membrane.
B)   During osmosis, water crosses to the side of the membrane with a lower solute concentration.
C)   Cells placed in hypotonic solutions will gain water.
D)   Crenation results when cells are placed in a hypertonic solution.
E)   Osmosis stops when the system reaches equilibrium.

Question 16

The reserve deposits of starch or other compounds found in many prokaryotic cells are called __________.

Accepted Answer

The answer of The reserve deposits of starch or other...

Question 17

Fibrous structures some archaea use for attachment to surfaces are __________.

Accepted Answer

The answer of Fibrous structures some archaea use for attachment...

Question 18

The process of facilitated diffusion requires an input of energy.

Accepted Answer

A) True 
 B)False

Question 19

Lysosomes result from the endocytosis of food particles by eukaryotic cells.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following may have cell walls containing teichoic acids?

Accepted Answer

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

Exam 3: Cell Structure and Function

The cell walls of __________ contain peptidoglycan.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Endospores survive a variety of harsh conditions in part because of the presence of

Correct AnswerverifiedShow Answer

The reserve deposits of starch or other compounds found in many prokaryotic cells are called __________.

Correct AnswerverifiedShow Answer

A bacterial cell moving toward light would be an example of

Correct AnswerverifiedShow Answer

Membrane rafts are found in the cytoplasmic membranes of

Correct AnswerverifiedShow Answer

Formation of a biofilm may contribute to bacteria's ability to cause disease.

Correct AnswerverifiedShow Answer

The glycocalyx of a eukaryotic cell performs all of the following functions EXCEPT

Correct AnswerverifiedShow Answer

Describe how the structure of the bacterial cytoplasmic membrane relates to its function of selective permeability.

Correct AnswerverifiedThe structure and function of the cytopl...View AnswerShow Answer

The cytoplasmic membranes of __________ contain phospholipids and proteins.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedBacterial cell walls are composed of pep...View AnswerShow Answer

Lysosomes result from the endocytosis of food particles by eukaryotic cells.

Correct AnswerverifiedShow Answer

Which of the following statements concerning the endosymbiotic theory is FALSE?

Correct AnswerverifiedShow Answer

The process of facilitated diffusion requires an input of energy.

Correct AnswerverifiedShow Answer

Chloroplasts differ from mitochondria in that they have

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Which of the following molecules would be expected to cross the cytoplasmic membrane rapidly and without the use of transport proteins?

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Which of the following may have cell walls containing teichoic acids?

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Fibrous structures some archaea use for attachment to surfaces are __________.

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Which of the following statements concerning osmosis is FALSE?

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When cells are placed in a hypertonic solution, they lose water and shrivel. This process is called

Correct AnswerverifiedShow Answer

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The structure and function of the cytopl...
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Bacterial cell walls are composed of pep...
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