Question 1

A cell that produces many proteins for secretion would have large numbers of

Accepted Answer

A)  mitochondria and cilia.
B)  rough ER and Golgi apparatus.
C)  ribosomes and centrioles.
D)  Golgi apparatus and microvilli.
E)  lysosomes and Golgi apparatus.F) A) and B)
G) A) and C)

Question 2

The cytoskeleton consists of

Accepted Answer

A)  ribosomes,the nucleus,and the Golgi apparatus.
B)  microfilaments,mitochondria,and lipochromes.
C)  microtubules,actin filaments,and intermediate filaments.
D)  actin filaments,mitochondria,and intermediate filaments.
E)  lipochromes,microfilaments,and microtubules.F) B) and C)
G) A) and C)

Question 3

Which of the following are ciliated cells?

Accepted Answer

A)  red blood cells
B)  macrophage (large,mobile white blood cell) 
C)  spermatozoa
D)  columnar cells of upper respiratory tract
E)  columnar cells of small intestinesF) D) and E)
G) None of the above

Question 4

If a toxic drug inhibited mRNA synthesis,which of the following would be most directly affected?

Accepted Answer

A)  protein synthesis
B)  intracellular digestion
C)  active transport
D)  microtubule production
E)  secretion of glycoproteins and lipoproteinsF) A) and B)
G) A) and C)

Question 5

Which of the following will increase the rate of diffusion?

Accepted Answer

A)  an increase in the viscosity of the solvent
B)  an increase in the temperature
C)  an increase in the molecular weight of the diffusing particles
D)  an increase in the distance the molecules have to travel
E)  All of these choices are correct.F) B) and C)
G) A) and C)

Question 6

What is the term used to describe a small generic membrane-bound structure that transports substances to the plasma membrane for release by exocytosis?

Accepted Answer

A)   Secretory vesicle
B)   Proteosome granule
C)   Chromatid
D)   Organelle
E)   CentrosomeF) B) and E)
G) C) and D)

Question 7

If 0.9% NaCl (saline) solution is isotonic to a cell,then a 0.5% saline solution

Accepted Answer

A)  will not affect the cell.
B)  is hypotonic to the cell.
C)  will cause crenation of the cell.
D)  will shrink the cell.
E)  is hypertonic to the cell.F) All of the above
G) C) and E)

Question 8

A particular membrane transport process exhibits saturation,uses carrier molecules,but does NOT require ATP.The process is probably

Accepted Answer

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

Question 9

The nucleic acid that is synthesized in the nucleus from a DNA template is

Accepted Answer

A)  tRNA.
B)  mRNA.
C)  rRNA.
D)  All of these are correct.E) B) and C)
F) C) and D)

Question 10

The _____________ contains the genetic information of the cell.

Accepted Answer

A)  nucleolus
B)  nucleoplasm
C)  nucleus
D)  nucleosome
E)  ribosomeF) C) and D)
G) A) and E)

Question 11

If all of the peroxisomes in a cell were suddenly removed,how would this affect its immediate activity and function?

Accepted Answer

A)  The cell would no longer be able to break down glucose.
B)  The cell would be unable to perform transcription.
C)  The cell would no longer be able to break down fatty acids,hydrogen peroxide,and amino acids.
D)  The cell would be unable to produce proteins.
E)  The cell would no longer be able to break down proteins and nucleic acids.F) A) and C)
G) B) and D)

Question 12

What type of cells are covered with microvilli for increased absorption?

Accepted Answer

A)  columnar cells of small intestines
B)  columnar cells of upper respiratory tract
C)  macrophage (large,mobile white blood cell) 
D)  spermatozoa
E)  red blood cellsF) A) and B)
G) A) and C)

Question 13

Which of the following organelles may or may not have ribosomes attached?

Accepted Answer

A)  nucleolus
B)  peroxisomes
C)  endoplasmic reticulum
D)  flagellum
E)  Golgi apparatusF) C) and D)
G) B) and D)

Question 14

Experimental manipulation to increase the energy output of the cell might include

Accepted Answer

A)  increasing protein synthesis.
B)  rupturing the lysosomes in the cell.
C)  decreasing nuclear size.
D)  increasing the number of mitochondria.
E)  removing some of the ribosomes.F) A) and B)
G) A) and E)

Question 15

In _______,ions or molecules move in opposite directions.

Accepted Answer

A)  uniport
B)  ionport
C)  antiport
D)  symport
E)  comportF) B) and D)
G) C) and E)

Question 16

Mitosis forms

Accepted Answer

A)  one daughter cell and another incomplete cell.
B)  daughter cells called gametes.
C)  two daughter cells with twice the amount of DNA as the mother cell.
D)  two daughter cells with the same amount of DNA as the mother cell.
E)  two daughter cells with half the DNA of the mother cell.F) B) and C)
G) None of the above

Question 17

DNA replication occurs during

Accepted Answer

A)  the S phase of interphase.
B)  the G1 phase of interphase.
C)  metaphase.
D)  anaphase.
E)  telophase.F) B) and D)
G) B) and C)

Question 18

Endocytosis

Accepted Answer

A)  is a process that requires a carrier molecule but does not use cellular energy.
B)  moves material out of the cell.
C)  ends cell functions.
D)  is movement of water through a selectively permeable membrane.
E)  is the bulk uptake of material through the plasma membrane by vesicle formation.F) A) and B)
G) D) and E)

Question 19

What type of membrane proteins have an exposed site on the outer cell surface that can attach to a ligand?

Accepted Answer

A)  marker molecules
B)  receptor proteins
C)  channel protein
D)  carrier proteins
E)  enzymesF) B) and D)
G) A) and C)

Question 20

Channel proteins

Accepted Answer

A)  allow cells to recognize one another.
B)  are binding sites for other molecules.
C)  utilize the G protein complex to function.
D)  are found only on endoplasmic reticulum.
E)  provide a tunnel through which ions or molecules can enter or leave the cell.F) C) and D)
G) A) and E)

Exam 3: Cell Biology

If 0.9% NaCl (saline) solution is isotonic to a cell,then a 0.5% saline solution

Correct AnswerverifiedShow Answer

If all of the peroxisomes in a cell were suddenly removed,how would this affect its immediate activity and function?

Correct AnswerverifiedShow Answer

The cytoskeleton consists of

Correct AnswerverifiedShow Answer

What is the term used to describe a small generic membrane-bound structure that transports substances to the plasma membrane for release by exocytosis?

Correct AnswerverifiedShow Answer

A particular membrane transport process exhibits saturation,uses carrier molecules,but does NOT require ATP.The process is probably

Correct AnswerverifiedShow Answer

Experimental manipulation to increase the energy output of the cell might include

Correct AnswerverifiedShow Answer

A cell that produces many proteins for secretion would have large numbers of

Correct AnswerverifiedShow Answer

DNA replication occurs during

Correct AnswerverifiedShow Answer

What type of cells are covered with microvilli for increased absorption?

Correct AnswerverifiedShow Answer

Which of the following are ciliated cells?

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In _______,ions or molecules move in opposite directions.

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Mitosis forms

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What type of membrane proteins have an exposed site on the outer cell surface that can attach to a ligand?

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If a toxic drug inhibited mRNA synthesis,which of the following would be most directly affected?

Correct AnswerverifiedShow Answer

Endocytosis

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The nucleic acid that is synthesized in the nucleus from a DNA template is

Correct AnswerverifiedShow Answer

The _____________ contains the genetic information of the cell.

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Channel proteins

Correct AnswerverifiedShow Answer

Which of the following organelles may or may not have ribosomes attached?

Correct AnswerverifiedShow Answer

Which of the following will increase the rate of diffusion?

Correct AnswerverifiedShow Answer

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