Question 1

The organelles that are the source of the spindle fibers are the

Accepted Answer

A)   lysosomes.
B)   mitochondria.
C)   centrioles.
D)   nucleus.
E)   ribosomes.F) A) and B)
G) A) and D)

Question 2

If the amino acid coding region of a mRNA molecule is 1800 nucleotides (bases)  in length, this molecule will contain _____ codons.

Accepted Answer

A)   1200
B)   400
C)   900
D)   600
E)   800F) C) and D)
G) A) and E)

Question 3

The transfer of information from DNA to messenger RNA (mRNA)  is known as

Accepted Answer

A)   transcription.
B)   translocation.
C)   translation.
D)   transduction.
E)   transmutation.F) B) and C)
G) A) and D)

Question 4

In one form of endocytosis a molecule binds to a specific protein on the cell surface and triggers vesicle formation and endocytosis. What type of transport is this?

Accepted Answer

A)   Pinocytosis
B)   Facilitated diffusion
C)   Receptor-mediated endocytosis
D)   Active exocytosisE) A) and B)
F) A) and C)

Question 5

In general, water-soluble molecules diffuse through the ______ ______; and lipid-soluble molecules diffuse through the ______ ______.

Accepted Answer

A)   membrane channels; membrane channels
B)   membrane channels; lipid bilayer
C)   lipid bilayer; membrane channels
D)   lipid bilayer; lipid bilayer
E)   None of these choices is correct.F) A) and C)
G) A) and B)

Question 6

Arrange the following in correct sequence: (1)  protein moves through ER and then carried in vesicles to Golgi apparatus
(2)  vesicle pinches off from the Golgi apparatus and carries product to plasma membrane
(3)  Golgi apparatus modifies protein and then packages them into vesicles
(4)  protein made by ribosomes on rough ER

Accepted Answer

A)   4, 3, 2, 1
B)   3, 2, 4, 1
C)   2, 3, 1, 4
D)   1, 2, 3, 4
E)   4, 1, 3, 2F) B) and D)
G) None of the above

Question 7

Which of the following activities is associated with lysosomes?

Accepted Answer

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

Question 8

What organelles are the sites of protein synthesis?

Accepted Answer

A)   nucleus
B)   centrioles
C)   lysosomes
D)   mitochondria
E)   ribosomesF) None of the above
G) A) and D)

Question 9

The bulk uptake of material by the formation of a vesicle is called

Accepted Answer

A)   osmosis.
B)   facilitated diffusion.
C)   diffusion.
D)   active transport.
E)   endocytosis.F) C) and D)
G) A) and E)

Question 10

What is the organelle where subunits of ribosomes are manufactured?

Accepted Answer

A)   flagellum
B)   Golgi apparatus
C)   nucleolus
D)   endoplasmic reticulum
E)   peroxisomesF) B) and C)
G) All of the above

Question 11

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

Accepted Answer

A)   diffusion
B)   facilitated diffusion
C)   osmosis
D)   active transport
E)   endocytosisF) C) and D)
G) B) and E)

Question 12

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

Accepted Answer

A)   chromosome
B)   proteins
C)   chromatid
D)   chromatin
E)   centromereF) B) and C)
G) C) and D)

Question 13

Microvilli

Accepted Answer

A)   are supported by microtubules.
B)   move the cell.
C)   increase the surface area of the cell.
D)   are extensions of the lysosomal membrane.
E)   function to make the cell mobile.F) B) and D)
G) D) and E)

Question 14

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

Question 15

Which of the following events occurs in the secondary active transport of glucose?

Accepted Answer

A)   Na+ ions and glucose are cotransported by the same carrier molecule.
B)   The Na+-K+ pump maintains a Na+ concentration gradient inside the cell.
C)   Energy comes from diffusion of Na+ down their concentration gradient.
D)   Glucose is moved against its concentration gradient into the cell.
E)   All of these choices are correct.F) C) and D)
G) B) and C)

Question 16

Microtubules

Accepted Answer

A)   are a component of mitochondria.
B)   are the smallest components of the cytoskeleton.
C)   provide structure and support to the cytoplasm.
D)   contain the protein myosin.
E)   are solid, supporting rods of protein.F) B) and E)
G) A) and E)

Question 17

_____________ pressure is the force required to prevent the movement of water by osmosis across a semipermeable membrane.

Accepted Answer

A)   Filtration
B)   Hydrolic
C)   Hydration
D)   Osmotic
E)   FluidF) A) and B)
G) A) and C)

Question 18

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

Accepted Answer

A)   proteins
B)   chromosome
C)   chromatid
D)   chromatin
E)   centromereF) None of the above
G) B) and E)

Question 19

Absence of a cytoskeleton might affect

Accepted Answer

A)   cell shape.
B)   the ability of the cell to generate energy.
C)   membrane transport.
D)   vesicle formation.
E)   the number of channel proteins in the cell membrane.F) C) and D)
G) A) and B)

Question 20

The time between cell divisions is called

Accepted Answer

A)   metaphase.
B)   interphase.
C)   prophase.
D)   telophase.
E)   anaphase.F) All of the above
G) A) and C)

Exam 3: Cell Biology

_____________ pressure is the force required to prevent the movement of water by osmosis across a semipermeable membrane.

Correct Answer
verified

The transfer of information from DNA to messenger RNA (mRNA) is known as

Correct Answer
verified

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

Correct Answer
verified

The time between cell divisions is called

Correct Answer
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In one form of endocytosis a molecule binds to a specific protein on the cell surface and triggers vesicle formation and endocytosis. What type of transport is this?

Correct Answer
verified

If the amino acid coding region of a mRNA molecule is 1800 nucleotides (bases) in length, this molecule will contain _____ codons.

Correct Answer
verified

What is the organelle where subunits of ribosomes are manufactured?

Correct Answer
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Microtubules

Correct Answer
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The bulk uptake of material by the formation of a vesicle is called

Correct Answer
verified

The organelles that are the source of the spindle fibers are the

Correct Answer
verified

Which of the following activities is associated with lysosomes?

Correct Answer
verified

What organelles are the sites of protein synthesis?

Correct Answer
verified

Absence of a cytoskeleton might affect

Correct Answer
verified

In general, water-soluble molecules diffuse through the ; and lipid-soluble molecules diffuse through the .

Correct Answer
verified

Correct Answer
verified

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 Answer
verified

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

Correct Answer
verified

Which of the following events occurs in the secondary active transport of glucose?

Correct Answer
verified

Microvilli

Correct Answer
verified

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

Correct Answer
verified

Exam 3: Cell Biology

_____________ pressure is the force required to prevent the movement of water by osmosis across a semipermeable membrane.

Correct AnswerverifiedShow Answer

The transfer of information from DNA to messenger RNA (mRNA) is known as

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The time between cell divisions is called

Correct AnswerverifiedShow Answer

In one form of endocytosis a molecule binds to a specific protein on the cell surface and triggers vesicle formation and endocytosis. What type of transport is this?

Correct AnswerverifiedShow Answer

If the amino acid coding region of a mRNA molecule is 1800 nucleotides (bases) in length, this molecule will contain _____ codons.

Correct AnswerverifiedShow Answer

What is the organelle where subunits of ribosomes are manufactured?

Correct AnswerverifiedShow Answer

Microtubules

Correct AnswerverifiedShow Answer

The bulk uptake of material by the formation of a vesicle is called

Correct AnswerverifiedShow Answer

The organelles that are the source of the spindle fibers are the

Correct AnswerverifiedShow Answer

Which of the following activities is associated with lysosomes?

Correct AnswerverifiedShow Answer

What organelles are the sites of protein synthesis?

Correct AnswerverifiedShow Answer

Absence of a cytoskeleton might affect

Correct AnswerverifiedShow Answer

In general, water-soluble molecules diffuse through the ______ ______; and lipid-soluble molecules diffuse through the ______ ______.

Correct AnswerverifiedShow Answer

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

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

Correct AnswerverifiedShow Answer

Which of the following events occurs in the secondary active transport of glucose?

Correct AnswerverifiedShow Answer

Microvilli

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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Correct Answer
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Correct Answer
verified

In general, water-soluble molecules diffuse through the ; and lipid-soluble molecules diffuse through the .

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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