Latest Updated Examination Study Guide 2022
Understanding Pathophysiology 7th edition by Huether, McCance Test Bank
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,Latest Updated Examination Study Guide 2022
,Latest Updated Examination Study Guide 2022
Chapter 1. Cellular Biology
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MULTIPLE CHOICE 2i
1. A student is observing a cell under the microscope. It is observed to have supercoiled DNA
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with histones. Which of the following would also be observed by the student?
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a. A single circular chromosome
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b. A nucleus 2i
c. Free-floating nuclear material 2i 2i
d. No organelles 2i
ANS: B 2i
The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within its nucl
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eus; thus, the nucleus should be observed.
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A single circular chromosome is characteristic of prokaryotic cells, which do not have histones.
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Free-
floating nuclear material describes a prokaryotic cell, which would not have a distinct nucleus.
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Eukaryotic cells have membrane bounded cellular components called organelles. No organelles
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describes a prokaryotic cell. 2i 2i 2i
2. A nurse is instructing the staff about cellular functions. Which cellular function is the nurse
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describing when an isolated cell absorbs oxygen and uses it to transform nutrients to energy?
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a. Metabolic absorption 2i
b. Communication
c. Secretion
d. Respiration
, Latest Updated Examination Study Guide 2022
ANS: D 2i
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 communicatio
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n.
The ability of the cell to take in nutrients refers to the cells function of metabolic absorption.
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The ability of the cell to synthesize new substances and secrete these elsewhere refers to the cells fun
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ction of secretion. 2i 2i
3. A eukaryotic cell is undergoing DNA replication. In which region of the cell would most of
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the genetic information be contained?
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a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS: C 2i
The region of the cell that contains genetic material, including a large amount of ribonucleic aci
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d, 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. According to
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this model, which of the following float singly or as aggregates in the fluid lipid bilayer?
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a. Peripheral membrane proteins 2i 2i
b. Integral membrane proteins 2i 2i
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