Question 1

The primary functions of the cell nucleus are cell division and control of genetic information.

Accepted Answer

A) True 
 B)False  True

Question 2

Match the structure with its function. Answers may be used more than once.
-Provides energy to digest proteins into amino acids

Accepted Answer

A)  Endoplasmic reticulum
B)  Ribosome
C)  Secretory vesicle
D)  LysosomesE) B) and D)
F) A) and C)

Question 3

How is passive transport described?

Accepted Answer

A)  It is driven by osmosis, filtration, and diffusion.
B)  It involves receptors that can bind with substances being transported.
C)  It is capable of transporting macromolecules.
D)  It requires energy generated by the cell.E) A) and C)
F) B) and C) A

Question 4

Under anaerobic conditions, the process of ______________ provides energy for the cell.

Accepted Answer

A)  oxidative phosphorylation
B)  glycolysis
C)  lactolysis
D)  passive transportE) A) and C)
F) A) and B)

Question 5

Cellular reproduction is a process that:

Accepted Answer

A)  often takes months or years to complete.
B)  typically has a short interphase.
C)  results in two diploid cells called daughter cells.
D)  involves the interaction of male and female cells.E) A) and B)
F) C) and D)

Question 6

Which cell component is capable of cellular autodigestion when it is released during cell injury?

Accepted Answer

A)  Ribosome
B)  Golgi complex
C)  Smooth endoplasmic reticulum
D)  LysosomesE) A) and B)
F) B) and C)

Question 7

Why is "osmolality" preferred over "osmolarity" as the measurement of osmotic activity in the clinical assessment of individuals?

Accepted Answer

A)  Because plasma contains sodium and chloride, which influence the volume of solution
B)  Because the volume affects perfusion more than the weight of solutes
C)  Because more of the weight of plasma is influenced by solutes, such as protein and glucose, rather than by water
D)  Because osmotic activity depends on the concentration of solutes present in plasma, such as proteins and glucoseE) C) and D)
F) All of the above

Question 8

During which phase of the cell cycle is DNA synthesized?

Accepted Answer

A)  G₁
B)  S
C)  G₂
D)  ME) All of the above
F) B) and C)

Question 9

Phagocytosis is an example of exocytosis.

Accepted Answer

A) True 
 B)False

Question 10

What is the name of the method of transport that uses transmembrane proteins with receptors that have a high degree of specificity for the substance being transported?

Accepted Answer

A)  Active transport
B)  Mediated transport
C)  Transmembranous transport
D)  Passive transportE) B) and C)
F) A) and B) B

Question 11

The chief function of ribosomes is to provide sites for lipid synthesis.

Accepted Answer

A) True 
 B)False

Question 12

Eukaryotic cells are characterized by a lack of a distinct nucleus, whereas prokaryotic cells have intracellular compartments bordered by membranes and a well-defined nucleus.

Accepted Answer

A) True 
 B)False

Question 13

What is the role of cytokines in cell reproduction?

Accepted Answer

A)  They provide growth factor for tissue growth and development.
B)  They block progress of cell reproduction through the cell cycle.
C)  They restrain cell growth and development.
D)  They provide nutrients for cell growth and development.E) B) and C)
F) A) and D)

Question 14

Which mode of chemical signaling uses local chemical mediators that are quickly taken up, destroyed or immobilized?

Accepted Answer

A)  Paracrine signaling
B)  Autocrine signaling
C)  Neurotransmitter signaling
D)  Hormone signalingE) A) and C)
F) All of the above

Question 15

The movement of fluid across the arterial end of capillary membranes into the interstitial fluid surrounding the capillary is an example of which process of fluid movement?

Accepted Answer

A)  Hydrostatic pressure
B)  Osmosis
C)  Diffusion
D)  Active transportE) A) and B)
F) A) and C)

Question 16

All body cells are electrically polarized, with the inside of the cell being more negatively charged than the outside.

Accepted Answer

A) True 
 B)False

Question 17

Which form of cell communication is used to communicate within the cell itself and with other cells in direct physical contact?

Accepted Answer

A)  Protein channel (gap junction) 
B)  Plasma membrane-bound signaling molecules (involving receptors) 
C)  Hormone secretion such as neurotransmitters
D)  Extracellular chemical messengers such as ligandsE) A) and C)
F) All of the above

Question 18

The action of platelet-derived growth factor is to stimulate production of:

Accepted Answer

A)  platelets.
B)  epidermal cells.
C)  connective tissue cells.
D)  fibroblast cells.E) B) and D)
F) None of the above

Question 19

What is the sequence of steps in the development of a digestive enzyme by the pancreas cells from the initial transcription to the release from the cell?

Accepted Answer

A)  The enzyme is transcribed from DNA by RNA in the nucleus, proceeds to the ribosome for synthesis, and is transported in a secretory vesicle to the cell membrane.
B)  The enzyme is transcribed from RNA by DNA in the nucleus, proceeds to the lysosome for synthesis, and is transported in an encapsulated membrane to the cell membrane.
C)  The enzyme is transcribed by the mitochondria in the nucleus, proceeds to the ribosome for synthesis, and is transported in a cytoskeleton to the cell membrane.
D)  The enzyme is transcribed from DNA by RNA in the nucleus, proceeds to the Golgi complex for synthesis, and is transported in a cytosol to the cell membrane.E) A) and B)
F) C) and D)

Question 20

Match the structure with its function. Answers may be used more than once.
-Protein carrier

Accepted Answer

A)  Passive-mediated transport
B)  Active-mediated transport
C)  OsmosisD) All of the above
E) A) and C)

Exam 1: Cellular Biology

The primary functions of the cell nucleus are cell division and control of genetic information.

Correct AnswerverifiedTrue

Match the structure with its function. Answers may be used more than once. -Provides energy to digest proteins into amino acids

Correct AnswerverifiedShow Answer

How is passive transport described?

Correct AnswerverifiedA

Under anaerobic conditions, the process of ______________ provides energy for the cell.

Correct AnswerverifiedShow Answer

Cellular reproduction is a process that:

Correct AnswerverifiedShow Answer

Which cell component is capable of cellular autodigestion when it is released during cell injury?

Correct AnswerverifiedShow Answer

Why is "osmolality" preferred over "osmolarity" as the measurement of osmotic activity in the clinical assessment of individuals?

Correct AnswerverifiedShow Answer

During which phase of the cell cycle is DNA synthesized?

Correct AnswerverifiedShow Answer

Phagocytosis is an example of exocytosis.

Correct AnswerverifiedShow Answer

What is the name of the method of transport that uses transmembrane proteins with receptors that have a high degree of specificity for the substance being transported?

Correct AnswerverifiedB

The chief function of ribosomes is to provide sites for lipid synthesis.

Correct AnswerverifiedShow Answer

Eukaryotic cells are characterized by a lack of a distinct nucleus, whereas prokaryotic cells have intracellular compartments bordered by membranes and a well-defined nucleus.

Correct AnswerverifiedShow Answer

What is the role of cytokines in cell reproduction?

Correct AnswerverifiedShow Answer

Which mode of chemical signaling uses local chemical mediators that are quickly taken up, destroyed or immobilized?

Correct AnswerverifiedShow Answer

The movement of fluid across the arterial end of capillary membranes into the interstitial fluid surrounding the capillary is an example of which process of fluid movement?

Correct AnswerverifiedShow Answer

All body cells are electrically polarized, with the inside of the cell being more negatively charged than the outside.

Correct AnswerverifiedShow Answer

Which form of cell communication is used to communicate within the cell itself and with other cells in direct physical contact?

Correct AnswerverifiedShow Answer

The action of platelet-derived growth factor is to stimulate production of:

Correct AnswerverifiedShow Answer

What is the sequence of steps in the development of a digestive enzyme by the pancreas cells from the initial transcription to the release from the cell?

Correct AnswerverifiedShow Answer

Match the structure with its function. Answers may be used more than once. -Protein carrier

Correct AnswerverifiedShow Answer

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B

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