Question 1

Diffusion may take place even when a concentration gradient is absent.

Accepted Answer

A) True 
 B)False

Question 2

In this phase of the cell cycle,DNA is replicated as the cell grows and protein synthesis occurs.

Accepted Answer

A)   prophase
B)   metaphase
C)   anaphase
D)   interphase
E)   mitosisF) None of the above
G) A) and B)

Question 3

In Krabbe disease,an enzyme is abnormal or absent in the

Accepted Answer

A)   centrosomes.
B)   lysosomes.
C)   cilia.
D)   peroxisomes.
E)   nucleus.F) B) and D)
G) A) and C)

Question 4

White blood cells that take in particles and cellular debris are termed

Accepted Answer

A)   pinocytes.
B)   erythrocytes.
C)   phagocytes.
D)   ligands.
E)   endocytes.F) B) and D)
G) None of the above

Question 5

A glycoprotein that extends from the surface of a cell may

Accepted Answer

A)   indicate whether protein synthesis is taking place in the cell.
B)   combine with other glycoproteins to form cilia.
C)   mark the cell as belonging to a particular type of tissue or organ in a particular person.
D)   dip back inside the cell if a person contracts an infection.
E)   form a lipid bilayer.F) B) and D)
G) D) and E)

Question 6

A microfilament is made of tiny rods of actin protein.

Accepted Answer

A) True 
 B)False

Question 7

Clusters of ribosomes in the cytoplasm are called

Accepted Answer

A)   mitochondria.
B)   inclusions.
C)   polysomes.
D)   polysaccharides.
E)   microtubules.F) A) and E)
G) A) and D)

Question 8

During metaphase of mitosis,chromosomes

Accepted Answer

A)   line up between the centrioles.
B)   unwind to form chromatin.
C)   migrate to opposite poles of the cell.
D)   are surrounded by a nuclear membrane.
E)   are selectively released from the cell.F) B) and D)
G) A) and E)

Question 9

Which of the following processes uses specific carrier molecules?

Accepted Answer

A)   phagocytosis
B)   pinocytosis
C)   active transport
D)   dialysis
E)   diffusionF) C) and E)
G) B) and E)

Question 10

In anaphase of mitosis,centromeres and duplicated parts of chromosomes separate.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is isotonic to red blood cells?

Accepted Answer

A)   0.9 percent NaCl solution
B)   distilled water
C)   0.9 percent glucose solution
D)   0.5 percent glucose solution
E)   1.4 percent galactose solutionF) B) and D)
G) All of the above

Question 12

The process that kidneys use to cleanse blood is

Accepted Answer

A)   filtration.
B)   active transport.
C)   exocytosis.
D)   facilitated diffusion.
E)   protein synthesis.F) D) and E)
G) A) and B)

Question 13

Studies show that chronic psychological or emotional stress as well as clinical depression or obesity can stimulate telomere lengthening.

Accepted Answer

A) True 
 B)False

Question 14

If the concentration of glucose in the water outside of a cell is higher than the concentration inside

Accepted Answer

A)   water will tend to enter the cell by osmosis.
B)   water will tend to leave the cell by osmosis.
C)   glucose will tend to enter the cell by osmosis.
D)   glucose will tend to leave the cell by osmosis.
E)   nucleoli.F) C) and D)
G) A) and B)

Question 15

If an isotonic saline solution is 0.9% NaCl,a 0.25% NaCl solution would be __________.

Accepted Answer

The answer of If an isotonic saline solution is 0.9%...

Question 16

Because of mitosis and cytoplasmic division,the resulting cells have

Accepted Answer

A)   identical chromosomes but different DNA information.
B)   identical DNA information but different chromosomes.
C)   identical chromosomes and identical DNA information.
D)   different chromosomes and different DNA information.
E)   random numbers of chromosomes.F) B) and E)
G) A) and D)

Question 17

A cell that secretes abundant proteins,such as a cell in the pancreas secreting insulin,would have extra nuclei.

Accepted Answer

A) True 
 B)False

Question 18

Which is an example of filtration?

Accepted Answer

A)   distilled water entering a cell
B)   cell removing cholesterol from its surrounding
C)   uptake of water and solutes by body cells
D)   molecules leaving blood capillariesE) A) and B)
F) A) and C)

Question 19

The movement of molecules from an area of low concentration to an area of high concentration is called diffusion.

Accepted Answer

A) True 
 B)False

Question 20

The genetic material (DNA)is the component of the cell that carries hereditary information.

Accepted Answer

A) True 
 B)False

Exam 3: Cells

Because of mitosis and cytoplasmic division,the resulting cells have

Correct AnswerverifiedShow Answer

In anaphase of mitosis,centromeres and duplicated parts of chromosomes separate.

Correct AnswerverifiedShow Answer

The process that kidneys use to cleanse blood is

Correct AnswerverifiedShow Answer

Which of the following is isotonic to red blood cells?

Correct AnswerverifiedShow Answer

If an isotonic saline solution is 0.9% NaCl,a 0.25% NaCl solution would be __________.

Correct AnswerverifiedShow Answer

White blood cells that take in particles and cellular debris are termed

Correct AnswerverifiedShow Answer

Diffusion may take place even when a concentration gradient is absent.

Correct AnswerverifiedShow Answer

Clusters of ribosomes in the cytoplasm are called

Correct AnswerverifiedShow Answer

A cell that secretes abundant proteins,such as a cell in the pancreas secreting insulin,would have extra nuclei.

Correct AnswerverifiedShow Answer

Which of the following processes uses specific carrier molecules?

Correct AnswerverifiedShow Answer

Studies show that chronic psychological or emotional stress as well as clinical depression or obesity can stimulate telomere lengthening.

Correct AnswerverifiedShow Answer

A glycoprotein that extends from the surface of a cell may

Correct AnswerverifiedShow Answer

The genetic material (DNA)is the component of the cell that carries hereditary information.

Correct AnswerverifiedShow Answer

A microfilament is made of tiny rods of actin protein.

Correct AnswerverifiedShow Answer

Which is an example of filtration?

Correct AnswerverifiedShow Answer

In Krabbe disease,an enzyme is abnormal or absent in the

Correct AnswerverifiedShow Answer

During metaphase of mitosis,chromosomes

Correct AnswerverifiedShow Answer

In this phase of the cell cycle,DNA is replicated as the cell grows and protein synthesis occurs.

Correct AnswerverifiedShow Answer

The movement of molecules from an area of low concentration to an area of high concentration is called diffusion.

Correct AnswerverifiedShow Answer

If the concentration of glucose in the water outside of a cell is higher than the concentration inside

Correct AnswerverifiedShow Answer

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