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

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) B) and D)

Question 3

Proteins that do not protrude into the phospholipid bilayer,but adhere to the surface of the plasma membrane,are called __________.

Accepted Answer

A)  peripheral proteins
B)  channel proteins
C)  glycoproteins
D)  integral proteins
E)  transmembrane proteinsF) A) and B)
G) B) and E)

Question 4

What do facilitated diffusion and active transport have in common?

Accepted Answer

A)  Both involve transport of a solute up its concentration gradient.
B)  Both involve transport of a solute down its concentration gradient.
C)  Both involve the use of energy provided by ATP.
D)  Neither require ATP to function.
E)  Both are examples of carrier-mediated transport.F) A) and D)
G) A) and C)

Question 5

Insulin is taken up,via endocytosis,by the endothelial cells that line blood capillaries.Then,it's transported across the cell to the other side,where it is released.This transport is called __________.

Accepted Answer

A)  pinocytosis
B)  receptor-mediated phagocytosis
C)  passive transport
D)  facilitated transport
E)  transcytosisF) C) and E)
G) C) and D)

Question 6

A red blood cell is placed in a hypertonic solution.This means the concentration of solutes in the solution is __________ than the concentration of solutes in the intracellular fluid,and will cause the cell to ______________.

Accepted Answer

A)  higher; swell
B)  lower; swell
C)  higher; shrink
D)  lower; shrink
E)  lower; burstF) A) and C)
G) C) and D)

Question 7

Which of these is an example of active transport?

Accepted Answer

A)  Diffusion of oxygen from a place of high concentration to a place of lower concentration
B)  Facilitated diffusion of K+
C)  Transport of glucose down its concentration gradient
D)  Transport of Na+ from a place of low concentration to a place of higher concentration
E)  Transport of Cl- following its concentration gradientF) A) and C)
G) C) and D)

Question 8

Which of the following statements is not a tenet of modern cell theory?

Accepted Answer

A)  An organism's structure and all of its functions are ultimately due to the activities of its cells.
B)  All cells come only from preexisting cells.
C)  All cells occupy space.
D)  All organisms are composed of cells and cell products.
E)  The cell is the basic structural and functional unit of life.F) None of the above
G) A) and E)

Question 9

The greater the concentration gradient,the faster the diffusion rate.

Accepted Answer

A) True 
 B)False

Question 10

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 11

In the plasma membrane,glycolipids and glycoproteins face toward the cytoplasm,while peripheral proteins always face toward the ECF.

Accepted Answer

A) True 
 B)False

Question 12

_________ decompose fatty acids,and detoxify alcohol,free radicals,and drugs.

Accepted Answer

A)  Lysosomes
B)  Microvilli
C)  Inclusions
D)  Peroxisomes
E)  Golgi vesiclesF) B) and C)
G) C) and D)

Question 13

Which of the following is a double-membraned organelle consisting of a matrix and cristae?

Accepted Answer

A)  Mitochondrion
B)  Rough ER
C)  Smooth ER
D)  Golgi complex
E)  NucleolusF) A) and C)
G) C) and E)

Question 14

Which of the following gives a cell structural support,determines the shape of a cell,and directs the movement of substances through a cell?

Accepted Answer

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

Question 15

What organelle is most active in causing programmed cell death?

Accepted Answer

A)  Rough endoplasmic reticulum
B)  Nucleus
C)  Centriole
D)  Lysosome
E)  MitochondrionF) None of the above
G) A) and D)

Question 16

__________ provide motility to a sperm cell,__________ act as sensory "antennae" in many cells,and ____________ increase a cell's surface area.

Accepted Answer

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

Question 17

The Golgi complex makes peroxisomes,but not lysosomes.

Accepted Answer

A) True 
 B)False

Question 18

__________ synthesize(s) carbohydrates and put(s) finishing touches on proteins synthesized at __________.

Accepted Answer

A)  Smooth ER; rough ER
B)  The Golgi complex; rough ER
C)  Smooth ER; the Golgi complex
D)  The Golgi complex; smooth ER
E)  Ribosomes; smooth ERF) C) and D)
G) B) and E)

Question 19

Ligand-gated ion channels are membrane proteins that open or close in response to the binding of a chemical.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is not a membranous organelle?

Accepted Answer

A)  Mitochondria
B)  Ribosome
C)  Nucleus
D)  Endoplasmic reticulum
E)  Golgi complexF) C) and E)
G) B) and E)

Exam 3: Cellular Form and Function

__________ provide motility to a sperm cell,__________ act as sensory "antennae" in many cells,and ____________ increase a cell's surface area.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

__________ synthesize(s) carbohydrates and put(s) finishing touches on proteins synthesized at __________.

Correct AnswerverifiedShow Answer

_________ decompose fatty acids,and detoxify alcohol,free radicals,and drugs.

Correct AnswerverifiedShow Answer

The Golgi complex makes peroxisomes,but not lysosomes.

Correct AnswerverifiedShow Answer

Ligand-gated ion channels are membrane proteins that open or close in response to the binding of a chemical.

Correct AnswerverifiedShow Answer

Proteins that do not protrude into the phospholipid bilayer,but adhere to the surface of the plasma membrane,are called __________.

Correct AnswerverifiedShow Answer

Insulin is taken up,via endocytosis,by the endothelial cells that line blood capillaries.Then,it's transported across the cell to the other side,where it is released.This transport is called __________.

Correct AnswerverifiedShow Answer

In the plasma membrane,glycolipids and glycoproteins face toward the cytoplasm,while peripheral proteins always face toward the ECF.

Correct AnswerverifiedShow Answer

Which of these is an example of active transport?

Correct AnswerverifiedShow Answer

What do facilitated diffusion and active transport have in common?

Correct AnswerverifiedShow Answer

The greater the concentration gradient,the faster the diffusion rate.

Correct AnswerverifiedShow Answer

Which of the following gives a cell structural support,determines the shape of a cell,and directs the movement of substances through a cell?

Correct AnswerverifiedShow Answer

Which of the following is not a membranous organelle?

Correct AnswerverifiedShow Answer

What organelle is most active in causing programmed cell death?

Correct AnswerverifiedShow Answer

Which of the following is a double-membraned organelle consisting of a matrix and cristae?

Correct AnswerverifiedShow Answer

Which of the following statements is not a tenet of modern cell theory?

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

A red blood cell is placed in a hypertonic solution.This means the concentration of solutes in the solution is __________ than the concentration of solutes in the intracellular fluid,and will cause the cell to ______________.

Correct AnswerverifiedShow Answer

provide motility to a sperm cell, act as sensory "antennae" in many cells,and ____ increase a cell's surface area.

Correct Answer
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synthesize(s) carbohydrates and put(s) finishing touches on proteins synthesized at .

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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 Answer
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A red blood cell is placed in a hypertonic solution.This means the concentration of solutes in the solution is than the concentration of solutes in the intracellular fluid,and will cause the cell to ____.

Correct Answer
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