Question 1

A microfilament is made of tiny rods of actin protein.

Accepted Answer

A) True 
 B)False

Question 2

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 3

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

Accepted Answer

A) True 
 B)False

Question 4

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 5

If a 5% dextrose solution is isotonic to blood, a 2% dextrose solution would be __________.

Accepted Answer

The answer of If a 5% dextrose solution is isotonic...

Question 6

During _______, chromatids separate and become chromosomes that are pulled toward opposite ends of the cell.

Accepted Answer

The answer of During _______, chromatids separate and become chromosomes...

Question 7

Roughly how many cells are in the adult human body?

Accepted Answer

A)   200 million cells
B)   750 million cells
C)   1 trillion cells
D)   30 trillion cells
E)   1 quadrillion cellsF) B) and D)
G) C) and E) D

Question 8

What organelle houses enzymes that degrade cellular debris?

Accepted Answer

A)   Lysosome
B)   Peroxisome
C)   Mitochondrion
D)   Nucleus
E)   Golgi apparatusF) All of the above
G) A) and D)

Question 9

Why is the interior of a cell membrane oily?

Accepted Answer

A)   The membrane drinks in oils.
B)   The phospholipid tails are made of fatty acids.
C)   The phospholipid heads are made of fatty acids.
D)   The cytoskeleton passes oils to the outside of the cell.
E)   The cytoskeleton captures oils from outside the cell.F) A) and C)
G) A) and B)

Question 10

An organelle that is a fluid-filled sac with inner partitions studded with enzymes is a mitochondrion.

Accepted Answer

A) True 
 B)False  True

Question 11

Within the nucleoplasm, ribosomes are formed in a small dense body called the __________.

Accepted Answer

The answer of Within the nucleoplasm, ribosomes are formed in...

Question 12

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 13

What is apoptosis?

Accepted Answer

A)   A form of secretion
B)   A form of cell division
C)   An abnormal form of development
D)   A response to injury
E)   A form of cell deathF) B) and E)
G) A) and E)

Question 14

During the metaphase of mitosis, chromosomes line up between the two centrioles.

Accepted Answer

A) True 
 B)False

Question 15

Cells are placed in a solution that causes them to absorb liquid until they burst. When some of the water is removed from the solution, newly added cells do not burst. The original solution was __________ to the cells, while the second was __________ to the cells.

Accepted Answer

A)   hypotonic; isotonic
B)   hypertonic; isotonic
C)   isotonic; hypotonic
D)   isotonic; hypertonicE) B) and D)
F) All of the above

Question 16

Vesicles are formed mainly by folding of the __________.

Accepted Answer

A)   lysosomal membrane
B)   nuclear membrane
C)   cell membrane
D)   endoplasmic reticulum
E)   mitochondrionF) B) and C)
G) A) and E)

Question 17

Receptor-mediated endocytosis is another name for facilitated diffusion.

Accepted Answer

A) True 
 B)False

Question 18

Among other functions, lysosomesdetoxify alcohol and break down hydrogen peroxide.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following is not a component of the cell membrane?

Accepted Answer

A)   Proteins
B)   Lipids
C)   Cholesterol
D)   Glycerol
E)   GlycogenF) All of the above
G) A) and B) E

Question 20

All differentiated cell types in a human body arise through lineages of stem and progenitor cells.

Accepted Answer

A) True 
 B)False

Exam 3: Cells

A microfilament is made of tiny rods of actin protein.

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

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

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

If a 5% dextrose solution is isotonic to blood, a 2% dextrose solution would be __________.

Correct AnswerverifiedShow Answer

During _______, chromatids separate and become chromosomes that are pulled toward opposite ends of the cell.

Correct AnswerverifiedShow Answer

Roughly how many cells are in the adult human body?

Correct AnswerverifiedD

What organelle houses enzymes that degrade cellular debris?

Correct AnswerverifiedShow Answer

Why is the interior of a cell membrane oily?

Correct AnswerverifiedShow Answer

An organelle that is a fluid-filled sac with inner partitions studded with enzymes is a mitochondrion.

Correct AnswerverifiedTrue

Within the nucleoplasm, ribosomes are formed in a small dense body called the __________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is apoptosis?

Correct AnswerverifiedShow Answer

During the metaphase of mitosis, chromosomes line up between the two centrioles.

Correct AnswerverifiedShow Answer

Cells are placed in a solution that causes them to absorb liquid until they burst. When some of the water is removed from the solution, newly added cells do not burst. The original solution was __________ to the cells, while the second was __________ to the cells.

Correct AnswerverifiedShow Answer

Vesicles are formed mainly by folding of the __________.

Correct AnswerverifiedShow Answer

Receptor-mediated endocytosis is another name for facilitated diffusion.

Correct AnswerverifiedShow Answer

Among other functions, lysosomesdetoxify alcohol and break down hydrogen peroxide.

Correct AnswerverifiedShow Answer

Which of the following is not a component of the cell membrane?

Correct AnswerverifiedE

All differentiated cell types in a human body arise through lineages of stem and progenitor cells.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
True

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Cells are placed in a solution that causes them to absorb liquid until they burst. When some of the water is removed from the solution, newly added cells do not burst. The original solution was to the cells, while the second was to the cells.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
E

Correct Answer
verified