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TEST BANK--UNDERSTANDING PATHOPHYSIOLOGY, 7TH EDITION BY SUE E. HUETHER KATHRYN L. McCANCE VALENTINA L. BRASHERS. CHAPTER 1-22 ALL CHAPTERS INCLUDED$14.99
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Huether & McCance: Understanding Pathophysiology, 6th Edition
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MULTIPLE CHOICE y
1. A student is observing a cell under the microscope. It is observed to
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y havesupercoiled DNAwith histones. Which of the following would also be
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y observed bythe student? y y
a. A single circular chromosome
y y y
b. A nucleus y
c. Free-floating nuclear material y y
d. No organelles y
ANS: B y
The cell described is a eukaryotic cell, so it has histones and a
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y supercoiledDNA within itsnucleus; thus, the nucleus should be observed. A
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y single circular chromosome called a prokaryote contains free-floating
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y nuclear material but hasno organelles. y y y y
REF: p. 2 y y
2. A nurse is instructing the staff about cellular functions. Which cellular
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function is the nurse describing when an isolated cell absorbs oxygen
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y anduses it to transform(rnutrients to energy?
y yy y y yy yy
,a. Metabolic absorption y
b. Communication
c. Secretion
d. Respiration
ANS: D y
The cell’s ability to absorb oxygen is referred to as respiration while
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y itscommunication abilityinvolves maintenance of a steady dynamic
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state,metabolica
y (r bsorption provides nutrition, and secretion allows for the
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synthesizing of new substances.
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REF: p. 2 y y
, 3. A eukaryotic cell is undergoing DNA replication. In which region of the cell
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wouldm
r ost ofthe genetic information be contained?
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a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus Cytoplasm y
ANS: C y
The region of the cell that contains genetic material, including a large
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y amount of ribonucleicacid, most of the DNA, and DNA-binding proteins, is
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y the nucleolus, which is located withinthe cell’s nucleus. Mitochondria is
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y associatedwith cellular respiration, while ribosomes are involved with protein
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ymanufacturing. Cytoplasm is(ra fluid filling that is a component of the cell.
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REF: p. 2 y y
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