Question 1

A cell with abundant peroxisomes would most likely be involved in

Accepted Answer

A)   secretion.
B)   storage of glycogen.
C)   detoxification activities.
D)   cellular communication.
E)   protein synthesis.F) A) and E)
G) All of the above

Question 2

Which of the following will increase the rate of diffusion?

Accepted Answer

A)   an increase in the viscosity of the solvent
B)   an increase in the temperature
C)   an increase in the molecular weight of the diffusing particles
D)   an increase in the distance the molecules have to travel
E)   All of these choices are correct.F) C) and E)
G) A) and C)

Question 3

Which transport process requires a carrier molecule but does not use cellular energy?

Accepted Answer

A)   active transport
B)   diffusion
C)   endocytosis
D)   facilitated diffusion
E)   osmosisF) A) and E)
G) A) and D)

Question 4

Which of the following activities is associated with lysosomes?

Accepted Answer

A)   exocytosis
B)   intracellular support
C)   destruction of nonfunctional organelles
D)   energy production
E)   endocytosisF) B) and C)
G) A) and B)

Question 5

-Red blood cells (RBCs)  have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is the condition of the RBC in solution "B"?

Accepted Answer

A)   hypotonic solution
B)   hypertonic solution
C)   isotonic solution
D)   hemolyzed
E)   crenatedF) B) and D)
G) C) and E)

Question 6

The lower limit of resolution of a light microscope is

Accepted Answer

A)   100 μ\muμ m
B)   0.1 μ\muμ m
C)   10 μ\muμ m
D)   0.01 μ\muμ m
E)   1.0 μ\muμ m F) A) and E)
G) C) and D)

Question 7

In _______, ions or molecules move in opposite directions.

Accepted Answer

A)   symport
B)   uniport
C)   antiport
D)   comport
E)   ionportF) All of the above
G) C) and D)

Question 8

Which of the following events occurs during anaphase?

Accepted Answer

A)   Chromatin strands condense to form chromosomes.
B)   Chromosomes migrate to opposite poles of the cell.
C)   Spindle fibers are formed.
D)   The nuclear envelope degenerates.
E)   Cytokinesis completes.F) A) and B)
G) C) and E)

Question 9

Organelles

Accepted Answer

A)   are extracellular structures.
B)   are unspecialized portions of a cell.
C)   generally lack membranes.
D)   vary in number and type depending on cell function.
E)   are structural, but not functional parts of the cell.F) C) and E)
G) C) and D)

Question 10

If you compare a cell with a manufacturing plant that exports goods, the cell's _____ could be compared to the manufacturing plant's shipping department.

Accepted Answer

A)   nucleus
B)   lysosome
C)   Golgi apparatus
D)   endoplasmic reticulum
E)   ribosomeF) A) and E)
G) None of the above

Question 11

The aroma of cookies baking in the kitchen reaches you in the living room. The distribution of this odor throughout the house is an example of

Accepted Answer

A)   active transport.
B)   dialysis.
C)   osmosis.
D)   filtration.
E)   diffusion.F) A) and B)
G) B) and E)

Question 12

Which of the following activities is a function of the plasma membrane?

Accepted Answer

A)   digestion of unneeded cell organelles
B)   recognition of bacterial cells by the immune system
C)   transport of products from the nucleus to the endoplasmic reticulum
D)   cell metabolism
E)   detoxificationF) None of the above
G) C) and D)

Question 13

-Answer these questions about chromosome structure. What does "A" represent?

Accepted Answer

A)   chromatid
B)   proteins
C)   chromosome
D)   centromere
E)   chromatinF) A) and B)
G) A) and C)

Question 14

Which of the following are consistent with facilitated diffusion? (1)  movement is against a concentration gradient
(2)  movement is with a concentration gradient
(3)  involves a carrier molecule
(4)  involves cotransport
(5)  involves counter transport
(6)  exhibits competition and saturation

Accepted Answer

A)   1, 2, 4, 5, 6
B)   2, 3, 6
C)   2, 3, 5, 6
D)   1, 3, 4, 5, 6
E)   2, 3, 4, 6F) A) and D)
G) All of the above

Question 15

A cancer that is able to spread and become worse is called

Accepted Answer

A)   metastasis
B)   malignant
C)   sarcoma
D)   benign
E)   carcinomaF) All of the above
G) D) and E)

Question 16

The shaft of a flagellum contains _____________ microtubule doublets around its periphery.

Accepted Answer

A)   2
B)   2 + 9
C)   9
D)   2+7
E)   7F) A) and C)
G) A) and E)

Question 17

-What structure does "C" represent on the diagram of the plasma membrane?

Accepted Answer

A)   membrane channel protein
B)   phospholipid bilayer
C)   internal membrane surface
D)   peripheral protein
E)   integral proteinF) All of the above
G) B) and D)

Question 18

The environment outside the plasma membrane is most appropriately referred to as

Accepted Answer

A)   intracellular.
B)   extracellular.
C)   multicellular.
D)   centrocellular.
E)   None of these choices are correct.F) C) and E)
G) A) and E)

Question 19

The leading strand of DNA is formed as

Accepted Answer

A)   short segments called Okazaki fragments.
B)   a continuous strand, adding to the 3´ end.
C)   a continuous strand, adding to the 5´ end.
D)   a template.
E)   soon as the lagging strand is formed.F) C) and D)
G) A) and B)

Question 20

Which of the following is NOT true of a gene?

Accepted Answer

A)   It is all the triplets needed to make a functional RNA or protein.
B)   It is a segment of a DNA molecule.
C)   Each chromosome contains one gene.
D)   It is the functional unit of heredity.
E)   All of these are true of a gene.F) A) and D)
G) B) and D)

Exam 3: Cell Biology

Which of the following activities is a function of the plasma membrane?

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-Answer these questions about chromosome structure. What does "A" represent?

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In _______, ions or molecules move in opposite directions.

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The environment outside the plasma membrane is most appropriately referred to as

Correct AnswerverifiedShow Answer

-Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is the condition of the RBC in solution "B"?

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Which of the following events occurs during anaphase?

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Which transport process requires a carrier molecule but does not use cellular energy?

Correct AnswerverifiedShow Answer

The leading strand of DNA is formed as

Correct AnswerverifiedShow Answer

If you compare a cell with a manufacturing plant that exports goods, the cell's _____ could be compared to the manufacturing plant's shipping department.

Correct AnswerverifiedShow Answer

The shaft of a flagellum contains _____________ microtubule doublets around its periphery.

Correct AnswerverifiedShow Answer

Which of the following are consistent with facilitated diffusion? (1) movement is against a concentration gradient (2) movement is with a concentration gradient (3) involves a carrier molecule (4) involves cotransport (5) involves counter transport (6) exhibits competition and saturation

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A cell with abundant peroxisomes would most likely be involved in

Correct AnswerverifiedShow Answer

A cancer that is able to spread and become worse is called

Correct AnswerverifiedShow Answer

The aroma of cookies baking in the kitchen reaches you in the living room. The distribution of this odor throughout the house is an example of

Correct AnswerverifiedShow Answer

Organelles

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-What structure does "C" represent on the diagram of the plasma membrane?

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Which of the following activities is associated with lysosomes?

Correct AnswerverifiedShow Answer

The lower limit of resolution of a light microscope is

Correct AnswerverifiedShow Answer

Which of the following will increase the rate of diffusion?

Correct AnswerverifiedShow Answer

Which of the following is NOT true of a gene?

Correct AnswerverifiedShow Answer

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