Huether & McCance: Understanding Pathophysiology, 6th Edition full test bank solution

Understanding Pathophysiology 6th Edition Huether
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Test




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, Understanding Pathophysiology 6th Edition Huether s s s s s s s s



Chapter 01: Cellular
ss Biology
Test ss ss




Huether&McCance: UnderstandingPathophysiology,6thEdition
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MULTIPLE CHOICE ss




1. A student is observing a cell under the microscope. It is observed to have supercoiled
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ss DNA with histones. Which of the following would also be observed by the
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s s student?
a. A single circular chromosome
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b. A nucleus s s




c. Free-floating nuclear material ss ss




d. No organelles ss




ANS: B
The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within its
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s s nucleus; thus, the nucleus should be observed. A single circular
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s s chromosome called a prokaryote contains free-floating nuclear material but s s s s ss s s s s s s s s s s




s s has no organelles. s s s s




REF: p. 2 s s




2. A nurse is instructing the staff about cellular functions. Which cellular
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s s function is the nurse describing when an isolated cell absorbs oxygen and uses it to
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ss transform nutrients to energy? ss s s ss




a. Metabolic absorption ss




b. Communication
c. Secretion
d. Respiration

ANS: NURSINGTB.COM

D
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The cell’s ability to absorb oxygen is referred to as respiration while its communication ability
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ss involves maintenance of a steady dynamic state, metabolic absorption provides nutrition, and
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ss secretion allows for the synthesizing of new substances.
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REF: p. 2 s s




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, Understanding Pathophysiology 6th Edition Huether s s s s s s s s



3. A eukaryoticTest
ss cell is undergoing DNA replication. In which region of the cell would
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ss most of the genetic information be contained?
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a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus Cytoplasm ss




ANS: C
The region of the cell that contains genetic material, including a large amount of
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ss ribonucleic acid, most of the DNA, and DNA-binding proteins, is the nucleolus, which is
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s s located within the cell’s nucleus. Mitochondria is associated with cellular
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s s respiration, while ribosomes are involved with protein manufacturing.
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s s Cytoplasm is a fluid filling that is a component of the cell.
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REF: p. 2 s s




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, Understanding Pathophysiology 6th Edition Huether s s s s s s s s



Test

4. Which of the following can remove proteins attached to the cell’s bilayer by dissolving
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ss the layer itself?
ss ss




a. Peripheral membrane proteins ss ss




b. Integral membrane proteins ss ss




c. Glycoproteins
d. Cell adhesion molecules ss s s




ANS: B
Proteins directly attached to the membrane bilayer can be removed by the action of
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ss integral membrane proteins that dissolve the bilayer. Peripheral membrane proteins
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ss reside at the surface while cell adhesion molecules are on the outside of the
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s s membrane. Glycoprotein marks cells and does not float. s s ss ss ss ss ss ss




REF: p. 7 s s




5. Which of the following can bind to plasma membrane receptors?
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a. Oxygen
b. Ribosomes
c. Amphipathic lipids s s




d. Ligands

ANS: D
Ligands are the only specific molecules that can bind with receptors on the cell
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s s membrane.

REF: p. 9 s s




6. A nurse is reviewing a report from a patient with metastatic cancer. What alternation
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in the extracellular matrix would NpTpoRrt thIe diGagnBos. isCvvof M
metastatic cancer?
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a. Decreased fibronectin ss




b. Increased collagen ss




c. Decreased elastin ss




d. Increased glycoproteins ss




ANS: A
Only a reduced amount of fibronectin is found in some types of cancerous cells, allowing
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NURSINGTB.COM