Question 1

Osmosis is the diffusion of

Accepted Answer

A)  water within the inside of a cell.
B)  water across a membrane.
C)  solutes within the inside of a cell.
D)  solutes across a membrane.E) All of the above
F) A) and D)

Question 2

Exocytosis occurs as a result of

Accepted Answer

A)  hydrostatic pressure.
B)  the expenditure of energy in the form of ATP.
C)  molecular movement with carrier assistance.
D)  concentration gradients.
E)  ion pumps.F) C) and D)
G) D) and E)

Question 3

When a cell is dividing,the genetic material is in the compact form of __________.

Accepted Answer

chromosome...

Question 4

The phase of mitosis that begins with the arrival of a group of single-stranded chromosomes at each pole of the cell is

Accepted Answer

A)  metaphase.
B)  anaphase.
C)  telophase.
D)  prophase.
E)  S phase.F) A) and B)
G) A) and D)

Question 5

Because they produce ribosome subunits,one would expect to find large numbers of nucleoli in cells that synthesize

Accepted Answer

A)  energy sources.
B)  pigments.
C)  solubility-enhancing substances.
D)  steroid hormones.
E)  proteins.F) None of the above
G) D) and E)

Question 6

The fuzzy coat made of glycoproteins and glycolipids found on the external surface of the plasma membrane is called the _______________.

Accepted Answer

The answer of The fuzzy coat made of glycoproteins and...

Question 7

These junctions hold adjacent cells together and provide resistance to mechanical stress.

Accepted Answer

A)  Gap junctions
B)  Desmosomes
C)  Tight junctions
D)  SynapsesE) B) and C)
F) B) and D)

Question 8

The sodium-potassium pump moves

Accepted Answer

A)  sodium and potassium into the cell.
B)  sodium and potassium out of the cell.
C)  sodium into the cell and potassium out of the cell.
D)  sodium out of the cell and potassium into the cell.E) B) and C)
F) All of the above

Question 9

Another name for the intracellular fluid is

Accepted Answer

A)  cytosol.
B)  interstitial fluid.
C)  intercellular matrix.
D)  cytoplasm.
E)  cisternae.F) A) and B)
G) D) and E)

Question 10

Lysosome functions range from the digestion of materials ingested by the cell to the self-destruction of the cell.

Accepted Answer

A) True 
 B)False

Question 11

One example of a membrane-bound organelle is a ribosome.

Accepted Answer

A) True 
 B)False

Question 12

Peroxisomes are membrane-bound organelles.

Accepted Answer

A) True 
 B)False

Question 13

When a small,polar solute binds to a membrane protein that then changes shape and transports the solute across the membrane,the process is known as

Accepted Answer

A)  simple diffusion.
B)  channel-mediated diffusion.
C)  carrier-mediated diffusion.
D)  active transport.
E)  endocytosis.F) A) and E)
G) A) and C)

Question 14

Most cells perform pinocytosis.

Accepted Answer

A) True 
 B)False

Question 15

Proteins that are embedded within,and extend across,the phospholipid bilayer are called _____ proteins.rev: 02_22_2014_QC_45534

Accepted Answer

A)  catalytic
B)  integral
C)  cytoskeleton
D)  peripheralE) A) and C)
F) B) and C)

Question 16

The lipid that stabilizes the membrane at extreme temperatures and is found in the hydrophobic regions of the bilayer is

Accepted Answer

A)  the polar head.
B)  the nonpolar tails.
C)  cholesterol.
D)  glycolipid.
E)  glycocalyx.F) A) and B)
G) A) and C)

Question 17

Physiological saline contains the same concentration of solutes as the inside of a cell,and it is therefore a(n)__________ solution.

Accepted Answer

The answer of Physiological saline contains the same concentration of...

Question 18

The coding regions of DNA that are both transcribed and translated are the ________.

Accepted Answer

The answer of The coding regions of DNA that are...

Question 19

_____________ are short,membrane-attached projections containing microtubules that occur in large numbers on exposed membrane surfaces.

Accepted Answer

The answer of _____________ are short,membrane-attached projections containing microtubules that...

Question 20

Ribosomes that are attached to the RER are called "free ribosomes".

Accepted Answer

A) True 
 B)False

Exam 4: Biology of the Cell

These junctions hold adjacent cells together and provide resistance to mechanical stress.

Correct AnswerverifiedShow Answer

Peroxisomes are membrane-bound organelles.

Correct AnswerverifiedShow Answer

_____________ are short,membrane-attached projections containing microtubules that occur in large numbers on exposed membrane surfaces.

Correct AnswerverifiedShow Answer

When a cell is dividing,the genetic material is in the compact form of __________.

Correct Answerverifiedchromosome...View AnswerShow Answer

The sodium-potassium pump moves

Correct AnswerverifiedShow Answer

The phase of mitosis that begins with the arrival of a group of single-stranded chromosomes at each pole of the cell is

Correct AnswerverifiedShow Answer

When a small,polar solute binds to a membrane protein that then changes shape and transports the solute across the membrane,the process is known as

Correct AnswerverifiedShow Answer

Another name for the intracellular fluid is

Correct AnswerverifiedShow Answer

Because they produce ribosome subunits,one would expect to find large numbers of nucleoli in cells that synthesize

Correct AnswerverifiedShow Answer

One example of a membrane-bound organelle is a ribosome.

Correct AnswerverifiedShow Answer

Physiological saline contains the same concentration of solutes as the inside of a cell,and it is therefore a(n)__________ solution.

Correct AnswerverifiedShow Answer

The lipid that stabilizes the membrane at extreme temperatures and is found in the hydrophobic regions of the bilayer is

Correct AnswerverifiedShow Answer

Exocytosis occurs as a result of

Correct AnswerverifiedShow Answer

Proteins that are embedded within,and extend across,the phospholipid bilayer are called _____ proteins.rev: 02_22_2014_QC_45534

Correct AnswerverifiedShow Answer

The fuzzy coat made of glycoproteins and glycolipids found on the external surface of the plasma membrane is called the _______________.

Correct AnswerverifiedShow Answer

Osmosis is the diffusion of

Correct AnswerverifiedShow Answer

The coding regions of DNA that are both transcribed and translated are the ________.

Correct AnswerverifiedShow Answer

Ribosomes that are attached to the RER are called "free ribosomes".

Correct AnswerverifiedShow Answer

Lysosome functions range from the digestion of materials ingested by the cell to the self-destruction of the cell.

Correct AnswerverifiedShow Answer

Most cells perform pinocytosis.

Correct AnswerverifiedShow Answer

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chromosome...
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