Question 1

How are the products of free ribosomes different from membrane-bound ribosomes?

Accepted Answer

Free ribosomes make soluble pr...

Question 2

Crenation (shrinking)  is likely to occur in blood cells immersed in_________ .

Accepted Answer

A)   an isotonic solution
B)   blood plasma
C)   a hypertonic solution
D)   a hypotonic solutionE) A) and B)
F) None of the above

Question 3

The process of discharging particles from inside a cell to the outside is called _________.

Accepted Answer

The answer of The process of discharging particles from inside...

Question 4

Briefly name the subphases of interphase and tell what they do.

Accepted Answer

G0 - resting phase. The cells do not und...

Question 5

The movement of water across the plasma membrane can be described by all of the following EXCEPT_________ .

Accepted Answer

A)   facilitated diffusion through aquaporins
B)   passive membrane transport
C)   carrier-mediated facilitated diffusion
D)   simple diffusionE) A) and B)
F) A) and C)

Question 6

Which of the following would NOT be a constituent of a plasma membrane?

Accepted Answer

A)   glycoproteins
B)   glycolipids
C)   messenger RNA
D)   phospholipidsE) A) and C)
F) None of the above

Question 7

Concentration differences cause ionic imbalances that polarize the cell membrane, and active transport processes.

Accepted Answer

A) True 
 B)False

Question 8

If a tRNA had an AGC anticodon, it could attach to a(n)  _________mRNA codon.

Accepted Answer

A)   AUG
B)   TCG
C)   UCG
D)   UGAE) C) and D)
F) A) and D)

Question 9

A red blood cell would swell if its surrounding solution were .

Accepted Answer

The answer of A red blood cell would swell if...

Question 10

Which of the following describes the plasma membrane?

Accepted Answer

A)   a phospholipid bilayer surrounding the cell
B)   a double layer of protein enclosing the plasma
C)   a membrane composed of tiny shelves or cristae
D)   a single-layered membrane that surrounds the nucleus of the cellE) None of the above
F) A) and B)

Question 11

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

Accepted Answer

A)   oxygen transport
B)   circulating antibody
C)   molecular transport through the membrane
D)   forms a lipid bilayerE) B) and C)
F) A) and B)

Question 12

Compare a gap junction to a channel protein, how are they alike and how are the different?

Accepted Answer

Both allow ions and small molecules to p...

Question 13

Aquaporins are believed to be present in red blood cells and kidney tubules, but not in any other cells in the body.

Accepted Answer

A) True 
 B)False

Question 14

Why can we say that a cell without a nucleus will ultimately die?

Accepted Answer

Without a nucleus, a cell cann...

Question 15

Which of these is an inclusion, not an organelle?

Accepted Answer

A)   microtubule
B)   cilia
C)   melanin
D)   lysosomeE) B) and C)
F) A) and D)

Question 16

Apoptosis is programmed cell death; cancer cells do not undergo this process.

Accepted Answer

A) True 
 B)False

Question 17

How is the resting potential formed? How is it maintained?

Accepted Answer

It is formed by diffusion-limi...

Question 18

A gene can best be defined as_________ .

Accepted Answer

A)   a segment of DNA that carries the instructions for one polypeptide chain
B)   a three-base triplet that specifies a particular amino acid
C)   noncoding segments of DNA up to 100,000 nucleotides long
D)   an RNA messenger that codes for a particular polypeptideE) A) and B)
F) C) and D)

Question 19

Describe two important functions of the Golgi apparatus.

Accepted Answer

To modify,...

Question 20

If a sequence of nucleotides on one strand of DNA is CCGATT, what would the complementary sequence look like on the other strand?

Accepted Answer

The complementary st...

Exam 3: Cells: the Living Units

Which of these is an inclusion, not an organelle?

Correct AnswerverifiedShow Answer

Describe two important functions of the Golgi apparatus.

Correct AnswerverifiedTo modify,...View AnswerShow Answer

Which of the following describes the plasma membrane?

Correct AnswerverifiedShow Answer

Crenation (shrinking) is likely to occur in blood cells immersed in_________ .

Correct AnswerverifiedShow Answer

Which of the following would NOT be a constituent of a plasma membrane?

Correct AnswerverifiedShow Answer

A gene can best be defined as_________ .

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Briefly name the subphases of interphase and tell what they do.

Correct AnswerverifiedG0 - resting phase. The cells do not und...View AnswerShow Answer

A red blood cell would swell if its surrounding solution were .

Correct AnswerverifiedShow Answer

Aquaporins are believed to be present in red blood cells and kidney tubules, but not in any other cells in the body.

Correct AnswerverifiedShow Answer

Why can we say that a cell without a nucleus will ultimately die?

Correct AnswerverifiedWithout a nucleus, a cell cann...View AnswerShow Answer

Compare a gap junction to a channel protein, how are they alike and how are the different?

Correct AnswerverifiedBoth allow ions and small molecules to p...View AnswerShow Answer

Concentration differences cause ionic imbalances that polarize the cell membrane, and active transport processes.

Correct AnswerverifiedShow Answer

How is the resting potential formed? How is it maintained?

Correct AnswerverifiedIt is formed by diffusion-limi...View AnswerShow Answer

How are the products of free ribosomes different from membrane-bound ribosomes?

Correct AnswerverifiedFree ribosomes make soluble pr...View AnswerShow Answer

If a sequence of nucleotides on one strand of DNA is CCGATT, what would the complementary sequence look like on the other strand?

Correct AnswerverifiedThe complementary st...View AnswerShow Answer

If a tRNA had an AGC anticodon, it could attach to a(n) _________mRNA codon.

Correct AnswerverifiedShow Answer

The movement of water across the plasma membrane can be described by all of the following EXCEPT_________ .

Correct AnswerverifiedShow Answer

The process of discharging particles from inside a cell to the outside is called _________.

Correct AnswerverifiedShow Answer

Apoptosis is programmed cell death; cancer cells do not undergo this process.

Correct AnswerverifiedShow Answer

Correct Answer
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To modify,...
View Answer

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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G0 - resting phase. The cells do not und...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Without a nucleus, a cell cann...
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Correct Answer
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Both allow ions and small molecules to p...
View Answer

Correct Answer
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Correct Answer
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It is formed by diffusion-limi...
View Answer

Correct Answer
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Free ribosomes make soluble pr...
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Correct Answer
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The complementary st...
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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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