Question 1

Cell shrinking, also known as crenation, occurs when a cell is placed into a(n)  ________ solution.

Accepted Answer

A)   isotonic
B)   hypertonic
C)   hypotonic
D)   exergonicE) C) and D)
F) None of the above

Question 2

The fluid contained in the nucleus is the ________.

Accepted Answer

The answer of The fluid contained in the nucleus is...

Question 3

When ligands bind to them, ________ receptors directly phosphorylate enzymes within the cell.

Accepted Answer

A)   enzymatic
B)   channel-linked
C)   G protein-coupled
D)   phosphataseE) A) and D)
F) A) and C)

Question 4

Apoptosis is best described as

Accepted Answer

A)   a process where cells destroy themselves.
B)   the process of an aging cell becoming cancerous.
C)   the destruction of a cell through mechanical damage.
D)   the process of immune cells recognizing an infected cell as "foreign."E) All of the above
F) None of the above

Question 5

Which choice describes the activation steps of a G protein-coupled receptor properly (and in correct order) ?

Accepted Answer

A)   Ligand binds to receptor, G protein activated, effector protein activated, second messenger made available
B)   Ligand binds to receptor, second messenger activated, G protein turned on, protein kinase activated
C)   Protein kinase activated, ion channel opened, ions enter and activate second messenger, G protein turned on
D)   Ion channel opened, G protein activated, second messenger synthesized, phosphatase ends signalE) B) and D)
F) None of the above

Question 6

Which of the following serves to increase the surface area of a cell?

Accepted Answer

A)   Microvilli
B)   Microfilaments
C)   Centrioles
D)   The nucleolusE) C) and D)
F) B) and C)

Question 7

The technical term for "cellular drinking" is ________.

Accepted Answer

The answer of The technical term for "cellular drinking" is...

Question 8

Body cells communicate with immune system cells through direct contact involving the sugary coatings on the cells' surfaces.

Accepted Answer

A) True 
 B)False

Question 9

Which is not one of the bases found in DNA nucleotides?

Accepted Answer

A)   Adenine
B)   Cytosine
C)   Guanine
D)   Thymine
E)   DiamineF) All of the above
G) C) and E)

Question 10

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) B) and C)

Question 11

Peroxisomes are membrane-bound organelles.

Accepted Answer

A) True 
 B)False

Question 12

Channel-mediated diffusion is a subtype of

Accepted Answer

A)   simple diffusion.
B)   carrier-mediated diffusion.
C)   active transport.
D)   facilitated diffusion.
E)   endocytosis.F) None of the above
G) All of the above

Question 13

The release of neurotransmitter from a neuron is an example of

Accepted Answer

A)   endocytosis and is a form of passive transport.
B)   receptor-mediated endocytosis and it requires expenditure of ATP.
C)   exocytosis and is a form of passive transport.
D)   exocytosis and it requires expenditure of ATP.
E)   pinocytosis and it is a form of primary active transport.F) A) and C)
G) A) and D)

Question 14

In ________ transport, substances move across a plasma membrane without the expenditure of energy by the cell.

Accepted Answer

The answer of In ________ transport, substances move across a...

Question 15

When a skin wound is healing, cell contact on all sides is a strong stimulus for cell division.

Accepted Answer

A) True 
 B)False

Question 16

The centrosome is considered to be an inclusion.

Accepted Answer

A) True 
 B)False

Question 17

Glycolipids are found on the

Accepted Answer

A)   outer layer of the cell membrane, and they help make the sticky sugar coating on its surface.
B)   middle layer of the cell membrane, and they function to transmit solutes through the membrane.
C)   inner layer of the cell membrane, and they provide scaffold support to the cell membrane.
D)   inside of the cell, where they are a source of high-energy nutrition to power mitochondria.E) All of the above
F) A) and D)

Question 18

Channel-linked receptors are also known as ________ gated channels.

Accepted Answer

The answer of Channel-linked receptors are also known as ________...

Question 19

The movement of glucose across a plasma membrane is achieved by

Accepted Answer

A)   ion pumps.
B)   receptor-mediated exocytosis.
C)   osmosis.
D)   facilitated diffusion.
E)   phagocytosis.F) B) and C)
G) A) and B)

Question 20

The amount of rough ER is greater in cells producing large amounts of protein for secretion.

Accepted Answer

A) True 
 B)False

Exam 4: Biology of the Cell

Which choice describes the activation steps of a G protein-coupled receptor properly (and in correct order) ?

Correct AnswerverifiedShow Answer

When ligands bind to them, ________ receptors directly phosphorylate enzymes within the cell.

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

Channel-linked receptors are also known as ________ gated channels.

Correct AnswerverifiedShow Answer

The movement of glucose across a plasma membrane is achieved by

Correct AnswerverifiedShow Answer

The amount of rough ER is greater in cells producing large amounts of protein for secretion.

Correct AnswerverifiedShow Answer

Which is not one of the bases found in DNA nucleotides?

Correct AnswerverifiedShow Answer

Glycolipids are found on the

Correct AnswerverifiedShow Answer

Peroxisomes are membrane-bound organelles.

Correct AnswerverifiedShow Answer

The technical term for "cellular drinking" is ________.

Correct AnswerverifiedShow Answer

Cell shrinking, also known as crenation, occurs when a cell is placed into a(n) ________ solution.

Correct AnswerverifiedShow Answer

The fluid contained in the nucleus is the ________.

Correct AnswerverifiedShow Answer

In ________ transport, substances move across a plasma membrane without the expenditure of energy by the cell.

Correct AnswerverifiedShow Answer

Which of the following serves to increase the surface area of a cell?

Correct AnswerverifiedShow Answer

Body cells communicate with immune system cells through direct contact involving the sugary coatings on the cells' surfaces.

Correct AnswerverifiedShow Answer

When a skin wound is healing, cell contact on all sides is a strong stimulus for cell division.

Correct AnswerverifiedShow Answer

Channel-mediated diffusion is a subtype of

Correct AnswerverifiedShow Answer

The centrosome is considered to be an inclusion.

Correct AnswerverifiedShow Answer

The release of neurotransmitter from a neuron is an example of

Correct AnswerverifiedShow Answer

Apoptosis is best described as

Correct AnswerverifiedShow Answer

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