Question 1

When a cell is at its resting membrane potential,more potassium diffuses out than sodium diffiuses in.

Accepted Answer

A) True 
 B)False

Question 2

One of the general functions that all cells must maintain throughout their life is the ability to divide and give rise to new cells.

Accepted Answer

A) True 
 B)False

Question 3

Cell shrinking,also known as crenation,occurs when a cell is placed into a(n) _________ solution.

Accepted Answer

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

Question 4

DNA directs the synthesis of proteins,including enzymes that catalyze the synthesis of several important molecules.

Accepted Answer

A) True 
 B)False

Question 5

Which statement is accurate

Accepted Answer

A)  DNA is made up entirely of genes;a chromosome is the unwoven form of chromatin.
B)  A sequence of nucleotides in DNA constitutes a gene;DNA and associated proteins form chromatin.
C)  Human cells contain 46 genes;another name for a gene is a nucleosome.
D)  Each nucleotide in a gene is bound by hydrogen to the next nucleotide in the sequence;chromatin is a nitrogenous base.E) C) and D)
F) None of the above

Question 6

Neurons have a _______ membrane potential of -70mV.In other words,this is their stable membrane potential under normal conditions.

Accepted Answer

The answer of Neurons have a _______ membrane potential of...

Question 7

Body cells communicate with immune system cells through direct contact involving the sugary coatings on the cells' surfaces.

Accepted Answer

A) True 
 B)False

Question 8

The term used to describe the fluid within a cell is _______________,or intracellular fluid.

Accepted Answer

The answer of The term used to describe the fluid...

Question 9

_____________ is the general term for all cellular contents located between the plasma membrane and the nucleus.

Accepted Answer

The answer of _____________ is the general term for all...

Question 10

An image produced by passing visible light through a specimen is obtained using the

Accepted Answer

A)  transmission electron microscope.
B)  light microscope.
C)  scanning electron microscope.
D)  dissecting scope.
E)  ocular examination method.F) A) and E)
G) B) and E)

Question 11

Most cells in the human body are between 1 $\mu$m and 100 $\mu$m in diameter.

Accepted Answer

A) True 
 B)False

Question 12

The uptake of cholesterol into cells is an example of

Accepted Answer

A)  phagocytosis.
B)  pinocytosis.
C)  receptor-mediated endocytosis.
D)  receptor-mediated exocytosis.
E)  simple diffusion.F) B) and E)
G) B) and D)

Question 13

The most abundant lipid of the membrane consists of a head and two tails.This type of lipid is

Accepted Answer

A)  a phospholipid.
B)  cholesterol.
C)  glycolipid.
D)  glycoprotein.
E)  a steroid.F) B) and D)
G) A) and B)

Question 14

Chromosomes are loose,and chromatin is tightly packed genetic material.

Accepted Answer

A) True 
 B)False

Question 15

Which type of protein is used by cells of the immune system to distinguish normal cells from foreign or infected cells

Accepted Answer

A)  Anchoring proteins
B)  Ligands
C)  Cell adhesion proteins
D)  Identity markers
E)  Transport proteinsF) D) and E)
G) A) and B)

Question 16

Placing a red blood cell in an extremely hypertonic solution leads to hemolysis.

Accepted Answer

A) True 
 B)False

Question 17

The folds of the internal membrane of a mitochondrion are called

Accepted Answer

A)  matrix.
B)  vesicles.
C)  vacuoles.
D)  cristae.
E)  cisternae.F) A) and E)
G) B) and D)

Question 18

When ligands bind to them,___________ receptors directly phosphorylate enzymes within the cell.

Accepted Answer

A)  enzymatic
B)  channel-linked
C)  G protein-coupled
D)  phosphataseE) A) and D)
F) C) and D)

Question 19

Generally,the shape of a nucleus mirrors the shape of the cell within which it is found.

Accepted Answer

A) True 
 B)False

Question 20

Which is an active transport process

Accepted Answer

A)  Simple diffusion
B)  Bulk filtration
C)  Osmosis
D)  Facilitated diffusion
E)  Ion pumpF) A) and C)
G) C) and E)

Exam 4: Biology of the Cell

Which statement is accurate

Correct AnswerverifiedShow Answer

_____________ is the general term for all cellular contents located between the plasma membrane and the nucleus.

Correct AnswerverifiedShow Answer

Most cells in the human body are between 1 μ\muμ m and 100 μ\muμ m in diameter.

Correct AnswerverifiedShow Answer

Neurons have a _______ membrane potential of -70mV.In other words,this is their stable membrane potential under normal conditions.

Correct AnswerverifiedShow Answer

Placing a red blood cell in an extremely hypertonic solution leads to hemolysis.

Correct AnswerverifiedShow Answer

The folds of the internal membrane of a mitochondrion are called

Correct AnswerverifiedShow Answer

One of the general functions that all cells must maintain throughout their life is the ability to divide and give rise to new cells.

Correct AnswerverifiedShow Answer

Which type of protein is used by cells of the immune system to distinguish normal cells from foreign or infected cells

Correct AnswerverifiedShow Answer

Chromosomes are loose,and chromatin is tightly packed genetic material.

Correct AnswerverifiedShow Answer

Body cells communicate with immune system cells through direct contact involving the sugary coatings on the cells' surfaces.

Correct AnswerverifiedShow Answer

An image produced by passing visible light through a specimen is obtained using the

Correct AnswerverifiedShow Answer

DNA directs the synthesis of proteins,including enzymes that catalyze the synthesis of several important molecules.

Correct AnswerverifiedShow Answer

Which is an active transport process

Correct AnswerverifiedShow Answer

Generally,the shape of a nucleus mirrors the shape of the cell within which it is found.

Correct AnswerverifiedShow Answer

Cell shrinking,also known as crenation,occurs when a cell is placed into a(n) _________ solution.

Correct AnswerverifiedShow Answer

The uptake of cholesterol into cells is an example of

Correct AnswerverifiedShow Answer

When a cell is at its resting membrane potential,more potassium diffuses out than sodium diffiuses in.

Correct AnswerverifiedShow Answer

When ligands bind to them,___________ receptors directly phosphorylate enzymes within the cell.

Correct AnswerverifiedShow Answer

The term used to describe the fluid within a cell is _______________,or intracellular fluid.

Correct AnswerverifiedShow Answer

The most abundant lipid of the membrane consists of a head and two tails.This type of lipid is

Correct AnswerverifiedShow Answer

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Most cells in the human body are between 1 $\mu$ m and 100 $\mu$ m in diameter.

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