Question 1

Which of the following structures function in holding organelles in place, maintaining cell shape and rigidity, and directing organelle movement?

Accepted Answer

A)   Centrioles
B)   Flagella
C)   Golgi apparatus
D)   Microtubules
E)   CiliaF) None of the above
G) A) and B)

Question 2

When fertilization occurs, the sperm recognizes the egg by

Accepted Answer

A)   the chemical messages the egg secretes into the interstitial space.
B)   the unique glycocalyx on the egg's surface.
C)   the much larger relative size of the egg.
D)   the strong acidity of the egg's environment.E) C) and D)
F) B) and C)

Question 3

The ________ is responsible for forming the outer, limiting barrier of a cell.

Accepted Answer

A)   peroxisome
B)   ribosome
C)   mitochondrion
D)   plasma membrane
E)   centrosomeF) B) and C)
G) C) and D)

Question 4

The digestion of a cell by its own enzymes is called ________.

Accepted Answer

The answer of The digestion of a cell by its...

Question 5

Physiological saline contains the same concentration of solutes as the inside of a cell, and it is therefore a(n) ________ solution.

Accepted Answer

The answer of Physiological saline contains the same concentration of...

Question 6

Which of the following choices describes three general functions cells must perform?

Accepted Answer

A)   Maintain shape, obtain nutrients, and dispose of wastes
B)   Respond to all hormones, maintain a waterproof barrier, give rise to gametes
C)   Grow until dividing, store complex carbohydrates, generate antibodies
D)   Take up oxygen, prevent water entry, undergo mitosis frequentlyE) A) and D)
F) C) and D)

Question 7

Coupled transport that involves the moving of one substance against its concentration gradient by using energy from a second substance moving down its concentration gradient is known as

Accepted Answer

A)   primary active transport.
B)   receptor-mediated endocytosis.
C)   bulk transport.
D)   sympathetic exocytosis.
E)   secondary active transport.F) A) and E)
G) C) and D)

Question 8

Because they produce ribosome subunits, one would expect to find large numbers of nucleoli in cells that synthesize

Accepted Answer

A)   energy sources.
B)   pigments.
C)   solubility-enhancing substances.
D)   steroid hormones.
E)   proteins.F) D) and E)
G) B) and C)

Question 9

Movement of a substance from an area of higher concentration to one where it is less concentrated is known as

Accepted Answer

A)   equilibrium.
B)   active transport.
C)   diffusion.
D)   facilitation.
E)   selective transport.F) C) and E)
G) A) and C)

Question 10

The sodium-potassium pump is continually active while the cell is at a stable resting membrane potential.

Accepted Answer

A) True 
 B)False

Question 11

Select all that are required for translation to occur.
A) DNA
B) RNA Polymerase
C) mRNA
D) tRNA

Accepted Answer

The answer of Select all that are required for translation...

Question 12

Which of the following serve to increase the surface area of a cell for absorption and secretion?

Accepted Answer

A)   Flagella
B)   Microvilli
C)   Cilia
D)   Cilia and flagella
E)   Cilia and microvilliF) A) and D)
G) C) and D)

Question 13

Which is a non-membrane-bound organelle?

Accepted Answer

A)   Microtubule
B)   Lysosome
C)   Golgi apparatus
D)   Rough endoplasmic reticulum
E)   MitochondrionF) All of the above
G) A) and D)

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

The ________ proteins are those that are not embedded in the membrane lipid bilayer but are attached loosely to its external and internal surfaces.

Accepted Answer

The answer of The ________ proteins are those that are...

Question 16

A little over 50% of the total amount of DNA in a human cell consists of genes.

Accepted Answer

A) True 
 B)False

Question 17

The lipid that stabilizes the membrane at extreme temperatures and is found in the hydrophobic regions of the bilayer is

Accepted Answer

A)   the polar head.
B)   the nonpolar tails.
C)   cholesterol.
D)   glycolipid.
E)   glycocalyx.F) A) and E)
G) B) and D)

Question 18

A cell-mediated process that transports large molecules across the plasma membrane and out of the cell is called ________.

Accepted Answer

The answer of A cell-mediated process that transports large molecules...

Exam 4: Biology of the Cell

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

Correct Answer
verified

The ________ is responsible for forming the outer, limiting barrier of a cell.

Correct Answer
verified

A cell-mediated process that transports large molecules across the plasma membrane and out of the cell is called ________.

Correct Answer
verified

Which of the following serve to increase the surface area of a cell for absorption and secretion?

Correct Answer
verified

Which of the following structures function in holding organelles in place, maintaining cell shape and rigidity, and directing organelle movement?

Correct Answer
verified

The ________ proteins are those that are not embedded in the membrane lipid bilayer but are attached loosely to its external and internal surfaces.

Correct Answer
verified

Select all that are required for translation to occur. A) DNA B) RNA Polymerase C) mRNA D) tRNA

Correct Answer
verified

The sodium-potassium pump is continually active while the cell is at a stable resting membrane potential.

Correct Answer
verified

Which is a non-membrane-bound organelle?

Correct Answer
verified

When fertilization occurs, the sperm recognizes the egg by

Correct Answer
verified

Movement of a substance from an area of higher concentration to one where it is less concentrated is known as

Correct Answer
verified

Physiological saline contains the same concentration of solutes as the inside of a cell, and it is therefore a(n) ________ solution.

Correct Answer
verified

The lipid that stabilizes the membrane at extreme temperatures and is found in the hydrophobic regions of the bilayer is

Correct Answer
verified

Because they produce ribosome subunits, one would expect to find large numbers of nucleoli in cells that synthesize

Correct Answer
verified

A little over 50% of the total amount of DNA in a human cell consists of genes.

Correct Answer
verified

Coupled transport that involves the moving of one substance against its concentration gradient by using energy from a second substance moving down its concentration gradient is known as

Correct Answer
verified

The digestion of a cell by its own enzymes is called ________.

Correct Answer
verified

Which of the following choices describes three general functions cells must perform?

Correct Answer
verified

Exam 4: Biology of the Cell

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

Correct AnswerverifiedShow Answer

The ________ is responsible for forming the outer, limiting barrier of a cell.

Correct AnswerverifiedShow Answer

A cell-mediated process that transports large molecules across the plasma membrane and out of the cell is called ________.

Correct AnswerverifiedShow Answer

Which of the following serve to increase the surface area of a cell for absorption and secretion?

Correct AnswerverifiedShow Answer

Which of the following structures function in holding organelles in place, maintaining cell shape and rigidity, and directing organelle movement?

Correct AnswerverifiedShow Answer

The ________ proteins are those that are not embedded in the membrane lipid bilayer but are attached loosely to its external and internal surfaces.

Correct AnswerverifiedShow Answer

Select all that are required for translation to occur. A) DNA B) RNA Polymerase C) mRNA D) tRNA

Correct AnswerverifiedShow Answer

The sodium-potassium pump is continually active while the cell is at a stable resting membrane potential.

Correct AnswerverifiedShow Answer

Which is a non-membrane-bound organelle?

Correct AnswerverifiedShow Answer

When fertilization occurs, the sperm recognizes the egg by

Correct AnswerverifiedShow Answer

Movement of a substance from an area of higher concentration to one where it is less concentrated is known as

Correct AnswerverifiedShow Answer

Physiological saline contains the same concentration of solutes as the inside of a cell, and it is therefore a(n) ________ solution.

Correct AnswerverifiedShow Answer

The lipid that stabilizes the membrane at extreme temperatures and is found in the hydrophobic regions of the bilayer is

Correct AnswerverifiedShow Answer

Because they produce ribosome subunits, one would expect to find large numbers of nucleoli in cells that synthesize

Correct AnswerverifiedShow Answer

A little over 50% of the total amount of DNA in a human cell consists of genes.

Correct AnswerverifiedShow Answer

Coupled transport that involves the moving of one substance against its concentration gradient by using energy from a second substance moving down its concentration gradient is known as

Correct AnswerverifiedShow Answer

The digestion of a cell by its own enzymes is called ________.

Correct AnswerverifiedShow Answer

Which of the following choices describes three general functions cells must perform?

Correct AnswerverifiedShow Answer

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