Question 1

Brad placed a drop of blood in some distilled water.What happened in the red blood cells?

Accepted Answer

A)   The cells shrunk.
B)   The cells burst.
C)   The cells did not change.D) B) and C)
E) A) and B)

Question 2

The diffusion of water across a semi-permeable membrane is called

Accepted Answer

A)   denaturation.
B)   osmosis.
C)   dispersion.
D)   dissociation.
E)   reconstitution.F) D) and E)
G) A) and E)

Question 3

A certain substance continues to enter the cell in the presence of a metabolic poison that disables the generation of energy by the cell.Where is the higher concentration of the substance?

Accepted Answer

A)   outside the cell
B)   inside the cellC) A) and B)
D) undefined

Question 4

Which of the following can cross the plasma membrane because of its selective permeability?

Accepted Answer

A)   gases such as oxygen and carbon dioxide
B)   ions
C)   large, polar molecules
D)   large, nonpolar molecules
E)   glycoproteinsF) B) and C)
G) C) and D)

Question 5

A microtubule poison would interfere with mitosis and meiosis.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is not a function of the cytoskeleton?

Accepted Answer

A)   maintain a cell's shape
B)   process proteins
C)   anchor organelles
D)   move organelles
E)   move the entire cellF) B) and D)
G) C) and D) B

Question 7

In developing embryos such as a chick,what restores the amount of surface area needed for exchange requirements?

Accepted Answer

A)   respiration
B)   catabolism
C)   anabolism
D)   cell division
E)   assimilationF) A) and B)
G) B) and C)

Question 8

Fermentation produces more ATP than does aerobic respiration.

Accepted Answer

A) True 
 B)False

Question 9

The gel-like fluid substance within a mitochondrion is called the

Accepted Answer

A)   matrix.
B)   cristae.
C)   rugae.
D)   effluvium.
E)   villi.F) A) and D)
G) A) and E)

Question 10

Which model currently describes the structure of the plasma membrane?

Accepted Answer

A)   endosymbiont model
B)   fluid-mosaic model
C)   plasmagel-plasmasol model
D)   lock and key model
E)   induced-fit modelF) B) and C)
G) A) and D) B

Question 11

The phospholipid bilayer that surrounds/maintains the integrity of a cell is called a

Accepted Answer

A)   plasma membrane.
B)   Sanger enclosure.
C)   hydrophobic membrane.
D)   dialysis membrane.
E)   mosaic membrane.F) A) and B)
G) A) and D)

Question 12

Which of the following would be a way of finishing this hypothesis about the function of the Golgi apparatus? If the Golgi apparatus is involved in packaging products for secretion,then

Accepted Answer

A)   vesicles must travel from the Golgi to the cell surface.
B)   vesicles must travel from the RER and SER to the Golgi apparatus.
C)   the Golgi apparatus must be part of the endomembrane system.
D)   the Golgi apparatus must consist of 3 to 20 slightly curved sacs.
E)   the Golgi apparatus would contain proteins.F) A) and E)
G) C) and D)

Question 13

If you could remove all the phosphate in the cell,what would happen to the ATP cycle?

Accepted Answer

A)   It would stop when all the ATP had been converted into ADP.
B)   It would stop when all the ADP had been converted into ATP.
C)   It would cycle faster because the lack of phosphate would drive the cycle.
D)   It would cycle faster because of the buildup of ATP.
E)   It would not affect the ATP cycle.F) C) and D)
G) B) and E)

Question 14

Which of the following processes in the breakdown of glucose does not require oxygen?

Accepted Answer

A)   glycolysis
B)   citric acid cycle
C)   electron transport chainD) None of the above
E) All of the above

Question 15

Because bacteria are prokaryotes,they do not have DNA.

Accepted Answer

A) True 
 B)False

Question 16

Cilia are composed of microtubules while flagella are composed of actin filaments.

Accepted Answer

A) True 
 B)False

Question 17

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

Accepted Answer

A)   determines which substances enter and leave the cell
B)   serves as a boundary between the cell and its environment
C)   contains receptor sites which determine how the cell interacts with its environment
D)   contains the genetic information
E)   mark the cell as belonging to a particular individualF) None of the above
G) A) and D)

Question 18

A short chain of sugar attached to a protein molecule on the plasma membrane is called

Accepted Answer

A)   a protomembrane.
B)   a protosugar.
C)   a glycocalyx.
D)   a glycolipid.
E)   a glycoprotein.F) B) and E)
G) A) and E)

Question 19

During exocytosis,the phospholipids present in the vesicle membrane will end up in the plasma membrane.

Accepted Answer

A) True 
 B)False  True

Question 20

Which of the following processes moves large molecules across a membrane in the opposite direction of the others?

Accepted Answer

A)   exocytosis
B)   phagocytosis
C)   pinocytosis
D)   receptor-mediated endocytosis
E)   endocytosisF) C) and D)
G) A) and C)

Exam 3: Cell Structure and Function

Brad placed a drop of blood in some distilled water.What happened in the red blood cells?

Correct AnswerverifiedShow Answer

The diffusion of water across a semi-permeable membrane is called

Correct AnswerverifiedShow Answer

A certain substance continues to enter the cell in the presence of a metabolic poison that disables the generation of energy by the cell.Where is the higher concentration of the substance?

Correct AnswerverifiedShow Answer

Which of the following can cross the plasma membrane because of its selective permeability?

Correct AnswerverifiedShow Answer

A microtubule poison would interfere with mitosis and meiosis.

Correct AnswerverifiedShow Answer

Which of the following is not a function of the cytoskeleton?

Correct AnswerverifiedB

In developing embryos such as a chick,what restores the amount of surface area needed for exchange requirements?

Correct AnswerverifiedShow Answer

Fermentation produces more ATP than does aerobic respiration.

Correct AnswerverifiedShow Answer

The gel-like fluid substance within a mitochondrion is called the

Correct AnswerverifiedShow Answer

Which model currently describes the structure of the plasma membrane?

Correct AnswerverifiedB

The phospholipid bilayer that surrounds/maintains the integrity of a cell is called a

Correct AnswerverifiedShow Answer

Which of the following would be a way of finishing this hypothesis about the function of the Golgi apparatus? If the Golgi apparatus is involved in packaging products for secretion,then

Correct AnswerverifiedShow Answer

If you could remove all the phosphate in the cell,what would happen to the ATP cycle?

Correct AnswerverifiedShow Answer

Which of the following processes in the breakdown of glucose does not require oxygen?

Correct AnswerverifiedShow Answer

Because bacteria are prokaryotes,they do not have DNA.

Correct AnswerverifiedShow Answer

Cilia are composed of microtubules while flagella are composed of actin filaments.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A short chain of sugar attached to a protein molecule on the plasma membrane is called

Correct AnswerverifiedShow Answer

During exocytosis,the phospholipids present in the vesicle membrane will end up in the plasma membrane.

Correct AnswerverifiedTrue

Which of the following processes moves large molecules across a membrane in the opposite direction of the others?

Correct AnswerverifiedShow Answer

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B

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B

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True

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