Question 1

From the time it forms until it divides forming new cells, a cell undergoes a series of changes called __________.

Accepted Answer

A)   mitosis
B)   interphase
C)   apoptosis
D)   the cell cycle
E)   cell deathF) B) and C)
G) A) and D)

Question 2

Ringer's solution is isotonic to blood; it contains various solutes whose concentrations are often expressed in mEq/L, or millEquivalents per Liter. If Ringer's has a total solute concentration of approximately 300 mEq/L, then a solution of 500 mEq/L would be _______ to the blood.

Accepted Answer

The answer of Ringer's solution is isotonic to blood; it...

Question 3

Tina has a sunburn. A week later, the skin on her burnt shoulder peels away. The cells are undergoing __________.

Accepted Answer

A)   apoptosis
B)   mitosis
C)   metastasis
D)   secretion
E)   signal transductionF) A) and C)
G) None of the above

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

What organelle is a membranous sac formed by budding off sections of the Golgi membrane?

Accepted Answer

A)   Peroxisome
B)   Mitochondrion
C)   Lysosome
D)   CentrosomeE) B) and C)
F) A) and B)

Question 6

The three-dimensional form of a cell affects its ability to perform its function.

Accepted Answer

A) True 
 B)False

Question 7

In prophase, DNA is tightly coiled into darkly staining structures called chromatin.

Accepted Answer

A) True 
 B)False

Question 8

Tiny droplets of fluid can cross a cell membrane and enter a cell using the process called __________.

Accepted Answer

A)   phagocytosis
B)   active transport
C)   passive transport
D)   pinocytosis
E)   receptor-mediated endocytosisF) A) and E)
G) B) and D)

Question 9

What is the function of mitochondria?

Accepted Answer

A)   To manufacture protein
B)   To release energy from glucose molecules
C)   To digest lipid molecules
D)   To synthesize lipids
E)   To transport materialF) C) and D)
G) D) and E)

Question 10

White blood cells that take in particles and cellular debris are called __________.

Accepted Answer

A)   pinocytes
B)   erythrocytes
C)   phagocytes
D)   hepatocytes
E)   endocytesF) D) and E)
G) A) and C)

Question 11

Roughly, a typical cell has how many ion channels?

Accepted Answer

A)   Hundreds
B)   Thousands
C)   Millions
D)   Billions
E)   TrillionsF) A) and C)
G) A) and E)

Question 12

All integral proteins extend through the plasma membrane and protrude on both sides.

Accepted Answer

A) True 
 B)False

Question 13

Glucose is a polar molecule that requires a carrier protein in order to diffuse through the plasma membrane's nonpolar barrier. Diffusion of substances that require carrier proteins is known as ____________.

Accepted Answer

A)   active transport
B)   transcytosis
C)   facilitated diffusion
D)   reverse osmosis
E)   endocytosisF) A) and B)
G) B) and D)

Question 14

A ligand would enter a cell using what process?

Accepted Answer

A)   Passive transport
B)   Exocytosis
C)   Receptor-mediated endocytosis
D)   Pinocytosis
E)   Simple diffusionF) None of the above
G) B) and E)

Question 15

Ribosomes are composed largely of protein and __________.

Accepted Answer

A)   RNA
B)   DNA
C)   lipid
D)   carbohydrate
E)   waterF) B) and D)
G) B) and E)

Question 16

What cellular transport process requires the greatest expenditure of cellular energy?

Accepted Answer

A)   Diffusion
B)   Osmosis
C)   Active transport
D)   Filtration
E)   Passive transportF) A) and E)
G) None of the above

Question 17

Mitosis is division of the _____. Upon completion of the cell cycle that includes mitosis, there are _____ cells.
A) cytoplasm; 2
B) nucleus; 2
C) cytoplasm; 4
D) nucleus; 4

Accepted Answer

The answer of Mitosis is division of the _____. Upon...

Question 18

In Krabbe disease, an enzyme normally present in the __________ is abnormal or absent.

Accepted Answer

A)   centrosomes
B)   lysosomes
C)   cilia
D)   peroxisomes
E)   nucleusF) All of the above
G) B) and C)

Question 19

The movement of glucose through a cell membrane is by facilitated diffusion.

Accepted Answer

A) True 
 B)False

Question 20

What is the function of a glycoprotein that extends from the surface of a cell?

Accepted Answer

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

Exam 3: Cells

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

Correct AnswerverifiedShow Answer

In prophase, DNA is tightly coiled into darkly staining structures called chromatin.

Correct AnswerverifiedShow Answer

Tina has a sunburn. A week later, the skin on her burnt shoulder peels away. The cells are undergoing __________.

Correct AnswerverifiedShow Answer

What is the function of mitochondria?

Correct AnswerverifiedShow Answer

Glucose is a polar molecule that requires a carrier protein in order to diffuse through the plasma membrane's nonpolar barrier. Diffusion of substances that require carrier proteins is known as ____________.

Correct AnswerverifiedShow Answer

Ribosomes are composed largely of protein and __________.

Correct AnswerverifiedShow Answer

Ringer's solution is isotonic to blood; it contains various solutes whose concentrations are often expressed in mEq/L, or millEquivalents per Liter. If Ringer's has a total solute concentration of approximately 300 mEq/L, then a solution of 500 mEq/L would be _______ to the blood.

Correct AnswerverifiedShow Answer

A ligand would enter a cell using what process?

Correct AnswerverifiedShow Answer

From the time it forms until it divides forming new cells, a cell undergoes a series of changes called __________.

Correct AnswerverifiedShow Answer

Mitosis is division of the _____. Upon completion of the cell cycle that includes mitosis, there are _____ cells. A) cytoplasm; 2 B) nucleus; 2 C) cytoplasm; 4 D) nucleus; 4

Correct AnswerverifiedShow Answer

White blood cells that take in particles and cellular debris are called __________.

Correct AnswerverifiedShow Answer

The three-dimensional form of a cell affects its ability to perform its function.

Correct AnswerverifiedShow Answer

The movement of glucose through a cell membrane is by facilitated diffusion.

Correct AnswerverifiedShow Answer

Tiny droplets of fluid can cross a cell membrane and enter a cell using the process called __________.

Correct AnswerverifiedShow Answer

In Krabbe disease, an enzyme normally present in the __________ is abnormal or absent.

Correct AnswerverifiedShow Answer

What is the function of a glycoprotein that extends from the surface of a cell?

Correct AnswerverifiedShow Answer

Roughly, a typical cell has how many ion channels?

Correct AnswerverifiedShow Answer

All integral proteins extend through the plasma membrane and protrude on both sides.

Correct AnswerverifiedShow Answer

What cellular transport process requires the greatest expenditure of cellular energy?

Correct AnswerverifiedShow Answer

What organelle is a membranous sac formed by budding off sections of the Golgi membrane?

Correct AnswerverifiedShow Answer

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Mitosis is division of the _. Upon completion of the cell cycle that includes mitosis, there are _ cells. A) cytoplasm; 2 B) nucleus; 2 C) cytoplasm; 4 D) nucleus; 4

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