Test Bank for Understanding Pathophysiology, 7th Edition ISBN NUMBER 978-0323639088 by Sue E. Huether & Kathryn L. McCance | All Chapters | Complete Guide | Verified Q&A

,Understanding Pathophysiology 7th edition by Huether, McCance Test Bank
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Allwellsolvedcomplete (questionsandanswers)solutionin this test bank
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,Chapter 1. Cellular Biologynn nn nn




MULTIPLE CHOICE nn




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




c. Free-floating nuclear material nn nn




d. No organelles nn




ANS: B nn




The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within
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nn its nucleus; thus, the nucleus should be observed.
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A single circular chromosome is characteristic of prokaryotic cells, which do not have
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histones.
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Free-floating nuclear material describes a prokaryotic cell, which would not have a distinct
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nn nucleus.

Eukaryotic cells have membrane bounded cellular components called organelles. No organelles
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nn describes a prokaryotic cell.
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2. A nurse is instructing the staff about cellular functions. Which cellular function is
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nn the nurse describing when an isolated cell absorbs oxygen and uses it to transform
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nn nutrients to energy? nn nn




a. Metabolic absorption nn




b. Communication
c. Secretion
d. Respiration

, ANS: D nn




The ability of the cell to absorb oxygen refers to the cells function of respiration.
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The ability of the cell to function within a society of cells refers to its function of
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nn communication.

The ability of the cell to take in nutrients refers to the cells function of metabolic
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absorption.
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The ability of the cell to synthesize new substances and secrete these elsewhere refers to the
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nn cells function of secretion.
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3. A eukaryotic cell is undergoing DNA replication. In which region of the cell would
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nn most of the genetic information be contained?
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a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus


ANS: C nn




The region of the cell that contains genetic material, including a large amount of ribonucleic
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nn acid, most of the DNA, and DNA-binding proteins, is the nucleolus.
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The mitochondria is the site of cellular respiration.
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The ribosomes are involved in manufacturing of proteins within the cell.
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The nucleus contains the nucleolus, and it is the nucleolus that contains genetic material.
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4. The fluid mosaic model for biologic membranes describes membrane behavior.
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nn According to this model, which of the following float singly or as aggregates in
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nn the fluid lipid bilayer?
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a. Peripheral membrane proteins nn nn




b. Integral membrane proteins nn nn