Question 1

A crystal of calcium phosphate in the cytoplasm of a cell should be classified as an inclusion.

Accepted Answer

A) True 
 B)False

Question 2

The number of particles of a solute in a solution is described by its ____________.The ability of a solution to affect the fluid volume in a cell is referred to as its __________.

Accepted Answer

A)  tonicity; osmolarity
B)  osmolarity; diffusion
C)  osmolarity; tonicity
D)  osmolarity; molarity
E)  tonicity; diffusionF) B) and C)
G) A) and B)

Question 3

Muscle cells contain numerous __________ to serve their high demand for ATP.

Accepted Answer

A)  ribosomes
B)  lysosomes
C)  mitochondria
D)  inclusions
E)  Golgi vesiclesF) D) and E)
G) All of the above

Question 4

White blood cells engulf bacteria by means of __________.

Accepted Answer

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

Question 5

What function would immediately cease if the ribosomes of a cell were destroyed?

Accepted Answer

A)  Exocytosis
B)  Active transport
C)  Ciliary action
D)  Protein synthesis
E)  OsmosisF) A) and B)
G) A) and E)

Question 6

Two solutions are separated by a selectively permeable membrane.If solution A has a higher concentration of a nonpermeating solute than solution B,then __________.

Accepted Answer

A)  the solute will pass down its concentration gradient from solution A to B
B)  the solute will pass down its concentration gradient from solution B to A
C)  water will pass down its concentration gradient from solution A to B
D)  water will pass down its concentration gradient from solution B to A
E)  neither the solute nor water will diffuseF) A) and B)
G) A) and C)

Question 7

Which of the following organelles is not involved in protein synthesis?

Accepted Answer

A)  Smooth ER
B)  Rough ER
C)  The Golgi complex
D)  The nucleus
E)  RibosomesF) B) and D)
G) C) and D)

Question 8

The plasma membrane of cells lining the small intestine has __________,which are specialized for absorption of nutrients.

Accepted Answer

A)  flagella
B)  cilia
C)  microvilli
D)  a glycocalyx
E)  dynein armsF) C) and D)
G) C) and E)

Question 9

The plasma membrane is permeable to _________,but impermeable to ___________.

Accepted Answer

A)  nutrients; wastes
B)  proteins; nutrients
C)  phosphates; wastes
D)  nutrients; proteins
E)  wastes; nutrientsF) B) and D)
G) B) and C)

Question 10

Water flows through a selectively permeable membrane in a process called __________,but water molecules cross the membrane more easily through channels of transmembrane proteins called __________.

Accepted Answer

A)  osmosis; water pumps
B)  osmosis; aquaporins
C)  osmosis; uniport
D)  filtration; aquaporins
E)  filtration; water pumpsF) A) and E)
G) B) and D)

Question 11

Which of the following is not a method by which particles can leave a cell?

Accepted Answer

A)  Active transport
B)  Exocytosis
C)  Simple diffusion
D)  An antiport system
E)  PinocytosisF) A) and B)
G) A) and E) E

Question 12

A cell's second messengers serve to transport material through the plasma membrane.

Accepted Answer

A) True 
 B)False

Question 13

Most transmembrane proteins have ___________ regions facing the intra- and extracellular fluid,and __________ regions embedded in the phospholipid bilayer.

Accepted Answer

A)  hydrophilic; hydrophilic
B)  hydrophilic; hydrophobic
C)  hydrophobic; hydrophobic
D)  hydrophobic; hydrophilic
E)  lipophilic; lipophobicF) C) and D)
G) A) and D) B

Question 14

In its second-messenger role,cAMP activates enzymes called _________,whose job is to regulate other enzymes by adding phosphate groups to them.

Accepted Answer

A)  transmembrane proteins
B)  peripheral proteins
C)  kinases
D)  glycocalyx
E)  blockersF) B) and E)
G) A) and B)

Question 15

Ribosomes are made of proteins and RNA.

Accepted Answer

A) True 
 B)False

Question 16

The fluid outside of a cell is called __________.

Accepted Answer

A)  cytosol
B)  intracellular fluid
C)  extracellular fluid
D)  cytoplasm
E)  nucleoplasmF) A) and B)
G) B) and E) C

Question 17

Among other functions,hepatocytes (liver cells) are specialized for detoxifying drugs or other chemicals.Hepatocytes have large amounts of __________.

Accepted Answer

A)  DNA
B)  smooth endoplasmic reticulum
C)  microtubules
D)  cilia
E)  centriolesF) A) and D)
G) A) and C)

Question 18

Which of the following is not considered an inclusion?

Accepted Answer

A)  Lysosome
B)  Fat droplet
C)  Glycogen granule
D)  Bacterium
E)  Dust particleF) None of the above
G) A) and B)

Question 19

Both the nucleus and the mitochondrion are surrounded by a two layer membrane.

Accepted Answer

A) True 
 B)False

Question 20

Most human cells range from 10 to 15 micrometers in diameter.What limits how large a cell can get?

Accepted Answer

A)  A cell's lifespan
B)  Nutrients available in the environment of a cell
C)  The relationship between its volume and length
D)  The relationship between its length and surface area
E)  The relationship between its volume and surface areaF) None of the above
G) A) and B)

Exam 3: Cellular Form and Function

A crystal of calcium phosphate in the cytoplasm of a cell should be classified as an inclusion.

Correct AnswerverifiedShow Answer

The number of particles of a solute in a solution is described by its ____________.The ability of a solution to affect the fluid volume in a cell is referred to as its __________.

Correct AnswerverifiedShow Answer

Muscle cells contain numerous __________ to serve their high demand for ATP.

Correct AnswerverifiedShow Answer

White blood cells engulf bacteria by means of __________.

Correct AnswerverifiedShow Answer

What function would immediately cease if the ribosomes of a cell were destroyed?

Correct AnswerverifiedShow Answer

Two solutions are separated by a selectively permeable membrane.If solution A has a higher concentration of a nonpermeating solute than solution B,then __________.

Correct AnswerverifiedShow Answer

Which of the following organelles is not involved in protein synthesis?

Correct AnswerverifiedShow Answer

The plasma membrane of cells lining the small intestine has __________,which are specialized for absorption of nutrients.

Correct AnswerverifiedShow Answer

The plasma membrane is permeable to _________,but impermeable to ___________.

Correct AnswerverifiedShow Answer

Water flows through a selectively permeable membrane in a process called __________,but water molecules cross the membrane more easily through channels of transmembrane proteins called __________.

Correct AnswerverifiedShow Answer

Which of the following is not a method by which particles can leave a cell?

Correct AnswerverifiedE

A cell's second messengers serve to transport material through the plasma membrane.

Correct AnswerverifiedShow Answer

Most transmembrane proteins have ___________ regions facing the intra- and extracellular fluid,and __________ regions embedded in the phospholipid bilayer.

Correct AnswerverifiedB

In its second-messenger role,cAMP activates enzymes called _________,whose job is to regulate other enzymes by adding phosphate groups to them.

Correct AnswerverifiedShow Answer

Ribosomes are made of proteins and RNA.

Correct AnswerverifiedShow Answer

The fluid outside of a cell is called __________.

Correct AnswerverifiedC

Among other functions,hepatocytes (liver cells) are specialized for detoxifying drugs or other chemicals.Hepatocytes have large amounts of __________.

Correct AnswerverifiedShow Answer

Which of the following is not considered an inclusion?

Correct AnswerverifiedShow Answer

Both the nucleus and the mitochondrion are surrounded by a two layer membrane.

Correct AnswerverifiedShow Answer

Most human cells range from 10 to 15 micrometers in diameter.What limits how large a cell can get?

Correct AnswerverifiedShow Answer

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The number of particles of a solute in a solution is described by its __.The ability of a solution to affect the fluid volume in a cell is referred to as its .

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The plasma membrane is permeable to _,but impermeable to ___.

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Water flows through a selectively permeable membrane in a process called ,but water molecules cross the membrane more easily through channels of transmembrane proteins called .

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E

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Most transmembrane proteins have _ regions facing the intra- and extracellular fluid,and regions embedded in the phospholipid bilayer.

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B

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C

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