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Test Bank for Human Anatomy 9th Edition by Martin
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Test Bank for Human Anatomy 9th Edition byMartini
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Human Anatomy, 9e (Martini)
Chapter 2 Foundations: The Cell
2.1 Multiple Choice Questions
1) Cells float in a watery medium called ________.
A) cytoplasm
B) extracellular fluid
C) cytosol
D) cellular fluid
E) None of the answers are correct.
Answer: B
Learning Outcome: 2.1
Bloom's Taxonomy: 1-2: Remembering/Understanding
2) Which of the following describes phospholipids in the plasma membrane?
A) The phospholipid tails are hydrophobic.
B) The phospholipid tails are hydrophilic.
C) The phospholipid heads are hydrophobic.
D) The phospholipid tails are at the surface.
E) The phospholipid heads are on the inside.
Answer: A
Learning Outcome: 2.1
Bloom's Taxonomy: 1-2: Remembering/Understanding
3) The viscous, superficial coating on the outer surface of the plasma membrane is called the
________.
A) glycocalyx
B) pseudopodia
C) inclusions
D) tubulin
E) cytosol
Answer: A
Learning Outcome: 2.1
Bloom's Taxonomy: 1-2: Remembering/Understanding
4) How do peripheral proteins contribute to the structure of the plasma membrane?
A) They form a structural element by being embedded in the plasma membrane.
B) Some form channels to permit passage of water molecules, ions, and small water-soluble
1
Copyright © 2018 Pearson Education, Inc.
,compounds into and out of the cell.
C) Some may function as catalysts.
D) They are attached to either the inner or outer surface of the membrane.
E) None of the answers are correct.
Answer: D
Learning Outcome: 2.1
Bloom's Taxonomy: 1-2: Remembering/Understanding
5) Substances that enter the cell usually do so through the ________.
A) cholesterol
B) glycocalyx
C) glycolipids
D) integral proteins
E) peripheral proteins
Answer: D
Learning Outcome: 2.1
Bloom's Taxonomy: 1-2: Remembering/Understanding
6) The general functions of the plasma membrane include ________.
A) physical isolation of the cell contents from the surrounding extracellular fluid
B) regulation of exchange of materials with the environment
C) sensitivity to changes in the extracellular fluid
D) structural support of the cell
E) All of the answers are correct.
Answer: E
Learning Outcome: 2.1
Bloom's Taxonomy: 1-2: Remembering/Understanding
7) Which statement describes how the plasma membrane is used in communication and
sensitivity?
A) It serves as a storage site for large amounts of proteins for future use by the cell.
B) It effectively isolates the cytoplasm from the surrounding fluid environment.
C) It serves as an impermeable membrane.
D) It acts as a site for the attachment of glycoproteins and glycolipids, which act as receptors for
molecules present in the extracellular fluid.
E) It provides for specialized connections between neighboring cells, giving tissues a stable
structure.
Answer: D
Learning Outcome: 2.1
Bloom's Taxonomy: 1-2: Remembering/Understanding
8) Because the plasma membrane restricts some substances and permits others through, it is
referred to as being ________.
A) structurally rigid
B) impermeable
C) selectively permeable
D) freely permeable
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Copyright © 2018 Pearson Education, Inc.
,E) both structurally rigid and selectively permeable
Answer: C
Learning Outcome: 2.1
Bloom's Taxonomy: 1-2: Remembering/Understanding
3
Copyright © 2018 Pearson Education, Inc.
, 9) Which of the following is a passive process for material movement across a plasma
membrane?
A) receptor-mediated endocytosis
B) phagocytosis
C) exocytosis
D) active transport
E) facilitated diffusion
Answer: E
Learning Outcome: 2.1
Bloom's Taxonomy: 1-2: Remembering/Understanding
10) An active process for transporting extracellular fluid, such as water and small molecules,
across a plasm membrane is ________.
A) phagocytosis
B) pinocytosis
C) osmosis
D) diffusion
E) None of the answers are correct.
Answer: B
Learning Outcome: 2.1
Bloom's Taxonomy: 1-2: Remembering/Understanding
11) Iron ions and cholesterol are brought into the cell by the process of ________.
A) pinocytosis
B) phagocytosis
C) receptor-mediated pinocytosis
D) active transport
E) None of the answers are correct.
Answer: C
Learning Outcome: 2.1
Bloom's Taxonomy: 1-2: Remembering/Understanding
12) Carbon dioxide moves through the plasma membrane through the process of ________.
A) diffusion
B) osmosis
C) facilitated diffusion
D) active transport
E) both diffusion and osmosis
Answer: A
Learning Outcome: 2.1
Bloom's Taxonomy: 1-2: Remembering/Understanding
4
Copyright © 2018 Pearson Education, Inc.
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