Question 1

Receptor-mediated endocytosis

Accepted Answer

A)  moves materials out of the cell.
B)  is a type of passive transport.
C)  exhibits specificity.
D)  does not need ATP; the receptors supply the energy.
E)  occurs if oxygen is available.F) A) and E)
G) B) and C)

Question 2

Which of the following is NOT a type of cancer therapy?

Accepted Answer

A)  use of drugs to increase the blood supply to the tumor
B)  killing tissue with lasers
C)  surgical removal of the tissue
D)  killing tissue with x-rays
E)  use of drugs to kill cellsF) B) and C)
G) A) and D)

Question 3

In order to study in detail the anatomy of internal cell parts,it would be best to use

Accepted Answer

A)  a transmission electron microscope (TEM) .
B)  a scanning electron microscope (SEM) .
C)  tissue cultures.
D)  flashlights.
E)  x-rays.F) A) and C)
G) A) and E)

Question 4

White blood cells engulf foreign particles by means of

Accepted Answer

A)  macrocytosis.
B)  phagocytosis.
C)  exocytosis.
D)  pinocytosis.
E)  prestocytosis.F) C) and D)
G) A) and B) B

Question 5

What is the organelle where subunits of ribosomes are manufactured?

Accepted Answer

A)  flagellum
B)  Golgi apparatus
C)  nucleolus
D)  endoplasmic reticulum
E)  peroxisomesF) C) and D)
G) A) and B)

Question 6

If you compare a cell with a manufacturing plant that exports goods,the cell's _____ could be compared to the manufacturing plant's shipping department.

Accepted Answer

A)  nucleus
B)  lysosome
C)  Golgi apparatus
D)  endoplasmic reticulum
E)  ribosomeF) B) and D)
G) C) and E)

Question 7

What organelle packages materials for secretion from the cell?

Accepted Answer

A)  endoplasmic reticulum
B)  flagellum
C)  peroxisomes
D)  Golgi apparatus
E)  nucleolusF) A) and D)
G) A) and C)

Question 8

Communication between cells is essential to coordinate the activity of the trillions of cells that make up the human body.Which of the following is (are) directly involved in carrying out communication between cells?

Accepted Answer

A)  lipid bilayer of the plasma membrane
B)  both receptor proteins of the plasma membrane and chemical signal molecules released by cells
C)  receptor proteins of the plasma membrane
D)  mitochondria
E)  chemical signal molecules released by cellsF) None of the above
G) A) and E)

Question 9

-The cell is the basic unit of life.All cellular structures exhibit special functions.Match the structure with its function.What is the function of "E"?

Accepted Answer

A)  major site of ATP synthesis when oxygen is available
B)  contains digestive enzymes
C)  directs cellular activities,contains DNA
D)  site of protein synthesis
E)  outer boundary of cell,controls entry and exit of substancesF) B) and D)
G) C) and E)

Question 10

Which of the following statements concerning membrane transport across the plasma membrane is true?

Accepted Answer

A)  All molecules are moved across by active transport.
B)  Water cannot move through the membrane.
C)  Lipid-soluble substances pass through the membrane by dissolving in the lipid bilayer.
D)  Generally,cations pass through the membrane more easily than anions.
E)  Polar molecules are transported more easily than nonpolar molecules.F) A) and D)
G) A) and E)

Question 11

In prophase

Accepted Answer

A)  cytokinesis occurs.
B)  DNA is synthesized.
C)  the chromosomes replicate.
D)  the chromosomes condense,shorten,and thicken.
E)  the spindle fibers disappear.F) B) and C)
G) C) and D)

Question 12

-The cell is the basic unit of life.All cellular structures exhibit special functions.Match the structure with its function.What is the function of "C"?

Accepted Answer

A)  contains digestive enzymes
B)  directs cellular activities,contains DNA
C)  outer boundary of cell,controls entry and exit of substances
D)  major site of ATP synthesis when oxygen is available
E)  site of protein synthesisF) B) and E)
G) A) and C)

Question 13

You are looking at a cell with the electron microscope and you notice the following characteristics: presence of many mitochondria and lysosomes; few,if any,Golgi apparatus; and many ribosomes.Which of the following is the most likely function of that cell?

Accepted Answer

A)  DNA replication
B)  absorption of nutrients
C)  intracellular digestion
D)  modification of protein
E)  secretion of lipidsF) B) and C)
G) A) and E) C

Question 14

In the process of diffusion,net movement of substances is always from a region

Accepted Answer

A)  outside the cell to a region inside the cell.
B)  inside the cell to a region outside the cell.
C)  of lower concentration to a region of higher concentration.
D)  of higher concentration to a region of lower concentration.
E)  None of these choices are correct.F) C) and D)
G) C) and E)

Question 15

The presence of a cellular clock,presence of "death genes" and damage to DNA or mitochondria are all theories of _____.

Accepted Answer

A)   cleavage
B)   death
C)   aging
D)   differentiationE) B) and D)
F) B) and C)

Question 16

If a 0.9% NaCl (saline) solution is isotonic to a cell,then a solution of 3.5% NaCl would be

Accepted Answer

A)  hypertonic to the cell.
B)  isotonic to the cell.
C)  hypotonic to the cell.
D)  catatonic to the cell.
E)  All of these choices are correct.F) A) and B)
G) A) and C)

Question 17

Which of these molecules is correctly matched with its method of movement through the cell membrane?

Accepted Answer

A)  lipid-soluble molecules - pass through membrane channels
B)  small,water-soluble molecules (ions) - dissolve in double phospholipid layer
C)  large,water-soluble molecules - transported by carrier-mediated processes
D)  glucose and amino acid molecules - pass through membrane channels
E)  All of these are correctly paired.F) All of the above
G) A) and E) C

Question 18

Which of the following structures is found in the nucleus?

Accepted Answer

A)  chromosome
B)  flattened membrane sacs
C)  cisternae
D)  cristae
E)  cytosolF) B) and C)
G) B) and D)

Question 19

Translation

Accepted Answer

A)  takes place in the nucleus.
B)  requires three types of DNA.
C)  requires the pairing of codons on mRNA with anticodons on tRNA.
D)  involves synthesis of RNA from DNA molecules.
E)  requires replication of DNA.F) A) and D)
G) D) and E)

Question 20

Nucleoli

Accepted Answer

A)  are located in the cytoplasm.
B)  are important for the formation of the Golgi apparatus.
C)  have a distinct membrane.
D)  regulate movement of materials into the nucleus.
E)  produce ribosomal subunits.F) A) and C)
G) C) and D)

Exam 3: Cell Biology

Receptor-mediated endocytosis

Correct AnswerverifiedShow Answer

Which of the following is NOT a type of cancer therapy?

Correct AnswerverifiedShow Answer

In order to study in detail the anatomy of internal cell parts,it would be best to use

Correct AnswerverifiedShow Answer

White blood cells engulf foreign particles by means of

Correct AnswerverifiedB

What is the organelle where subunits of ribosomes are manufactured?

Correct AnswerverifiedShow Answer

If you compare a cell with a manufacturing plant that exports goods,the cell's _____ could be compared to the manufacturing plant's shipping department.

Correct AnswerverifiedShow Answer

What organelle packages materials for secretion from the cell?

Correct AnswerverifiedShow Answer

Communication between cells is essential to coordinate the activity of the trillions of cells that make up the human body.Which of the following is (are) directly involved in carrying out communication between cells?

Correct AnswerverifiedShow Answer

-The cell is the basic unit of life.All cellular structures exhibit special functions.Match the structure with its function.What is the function of "E"?

Correct AnswerverifiedShow Answer

Which of the following statements concerning membrane transport across the plasma membrane is true?

Correct AnswerverifiedShow Answer

In prophase

Correct AnswerverifiedShow Answer

-The cell is the basic unit of life.All cellular structures exhibit special functions.Match the structure with its function.What is the function of "C"?

Correct AnswerverifiedShow Answer

You are looking at a cell with the electron microscope and you notice the following characteristics: presence of many mitochondria and lysosomes; few,if any,Golgi apparatus; and many ribosomes.Which of the following is the most likely function of that cell?

Correct AnswerverifiedC

In the process of diffusion,net movement of substances is always from a region

Correct AnswerverifiedShow Answer

The presence of a cellular clock,presence of "death genes" and damage to DNA or mitochondria are all theories of _____.

Correct AnswerverifiedShow Answer

If a 0.9% NaCl (saline) solution is isotonic to a cell,then a solution of 3.5% NaCl would be

Correct AnswerverifiedShow Answer

Which of these molecules is correctly matched with its method of movement through the cell membrane?

Correct AnswerverifiedC

Which of the following structures is found in the nucleus?

Correct AnswerverifiedShow Answer

Translation

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Nucleoli

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B

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C

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C

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