Question 1

One example of pinocytosis is the uptake of low-density lipoproteins (LDLs) by endothelial cells.

Accepted Answer

A) True 
 B)False

Question 2

The nucleus is the largest organelle in most cells.

Accepted Answer

A) True 
 B)False

Question 3

cells are thick in the middle and tapered toward the end.

Accepted Answer

A)  Squamous
B)  Stellate
C)  Columnar
D)  Spheroid
E)  FusiformF) A) and B)
G) A) and E) E

Question 4

This figure shows the plasma membrane.What does "C" represent?

Accepted Answer

A)  a peripheral protein
B)  a channel protein
C)  a glycoprotein
D)  cholesterol
E)  a phospholipidF) A) and B)
G) B) and C)

Question 5

This figure shows the structure of a representative cell.What does "D" represent?

Accepted Answer

A)  mitochondrion
B)  rough ER
C)  smooth ER
D)  Golgi complex
E)  nucleolusF) B) and D)
G) B) and E) A

Question 6

If a cell doubled in diameter, it would have twice as much cytoplasm to maintain.

Accepted Answer

A) True 
 B)False

Question 7

Microvilli and cilia differ in their function but have the same internal structure.

Accepted Answer

A) True 
 B)False

Question 8

The greater the concentration gradient the faster the diffusion rate.

Accepted Answer

A) True 
 B)False

Question 9

Although the transmission electron microscope (TEM)  can magnify much more than a light microscope, even at identical magnifications the TEM has the advantage of

Accepted Answer

A)  being able to produce photographs of the specimen.
B)  being able to work in a vacuum.
C)  being able to show individual molecules.
D)  producing higher resolution.
E)  working better with thinner tissue specimens.F) A) and E)
G) None of the above

Question 10

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

Accepted Answer

A)  ribosomes
B)  lysosomes
C)  mitochondria
D)  inclusions
E)  Golgi vesiclesF) B) and E)
G) A) and B)

Question 11

A patient was severely dehydrated, losing a large amount of fluid.The patient was given intravenous fluids of normal saline.Normal saline is to your blood cells and is about NaCl.

Accepted Answer

A)  isotonic; 9%
B)  isotonic; 0.9%
C)  hypertonic; 9%
D)  hypotonic; 0.9%
E)  hypotonic; 9%F) B) and E)
G) A) and E)

Question 12

Ribosomes are made of proteins and RNA.

Accepted Answer

A) True 
 B)False

Question 13

The sodium-potassium (Na+-K+)  pump transports both sodium and potassium their concentration gradients in a process called .

Accepted Answer

A)  up; active transport
B)  up; facilitated transport
C)  up; cotransport
D)  down; active transport
E)  down; countertransportF) None of the above
G) B) and D)

Question 14

gives structural support, determines the shape of a cell, and directs the movement of substances through the cell.

Accepted Answer

A)  Cholesterol
B)  The nucleus
C)  The plasma membrane
D)  The Golgi complex
E)  The cytoskeletonF) B) and D)
G) C) and E)

Question 15

The sodium-glucose transport protein (SGLT) is one example of an active transport process involving a uniport carrier.

Accepted Answer

A) True 
 B)False

Question 16

The Na+-K+ ATPase is a countertransport antiport carrier, which always requires energy.

Accepted Answer

A) True 
 B)False  True

Question 17

White blood cells engulf bacteria by means of

Accepted Answer

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

Question 18

Particles can leave a cell by any of these means except by

Accepted Answer

A)  active transport.
B)  exocytosis.
C)  simple diffusion.
D)  an antiport system.
E)  pinocytosis.F) A) and B)
G) A) and C)

Question 19

Which of these bring nonspecific material into a cell?

Accepted Answer

A)  phagocytosis
B)  receptor-mediated endocytosis
C)  transcytosis
D)  pinocytosis
E)  exocytosisF) A) and B)
G) A) and C)

Question 20

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

Accepted Answer

A)  DNA.
B)  smooth endoplasmic reticulum.
C)  microtubules.
D)  cilia.
E)  centrioles.F) A) and B)
G) A) and C)

Exam 3: Cellular Form and Function

One example of pinocytosis is the uptake of low-density lipoproteins (LDLs) by endothelial cells.

Correct AnswerverifiedShow Answer

The nucleus is the largest organelle in most cells.

Correct AnswerverifiedShow Answer

cells are thick in the middle and tapered toward the end.

Correct AnswerverifiedE

This figure shows the plasma membrane.What does "C" represent?

Correct AnswerverifiedShow Answer

This figure shows the structure of a representative cell.What does "D" represent?

Correct AnswerverifiedA

If a cell doubled in diameter, it would have twice as much cytoplasm to maintain.

Correct AnswerverifiedShow Answer

Microvilli and cilia differ in their function but have the same internal structure.

Correct AnswerverifiedShow Answer

The greater the concentration gradient the faster the diffusion rate.

Correct AnswerverifiedShow Answer

Although the transmission electron microscope (TEM) can magnify much more than a light microscope, even at identical magnifications the TEM has the advantage of

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A patient was severely dehydrated, losing a large amount of fluid.The patient was given intravenous fluids of normal saline.Normal saline is to your blood cells and is about NaCl.

Correct AnswerverifiedShow Answer

Ribosomes are made of proteins and RNA.

Correct AnswerverifiedShow Answer

The sodium-potassium (Na+-K+) pump transports both sodium and potassium their concentration gradients in a process called .

Correct AnswerverifiedShow Answer

gives structural support, determines the shape of a cell, and directs the movement of substances through the cell.

Correct AnswerverifiedShow Answer

The sodium-glucose transport protein (SGLT) is one example of an active transport process involving a uniport carrier.

Correct AnswerverifiedShow Answer

The Na+-K+ ATPase is a countertransport antiport carrier, which always requires energy.

Correct AnswerverifiedTrue

White blood cells engulf bacteria by means of

Correct AnswerverifiedShow Answer

Particles can leave a cell by any of these means except by

Correct AnswerverifiedShow Answer

Which of these bring nonspecific material into a cell?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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E

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A

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True

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