7th EDITION HUETHER
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CHAPTER 1-42 TEST BANK (r (r (r
Chapter 01: Cellular Biology
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Huether & McCance: Understanding Pathophysiology, 6th Edition
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MULTIPLE CHOICE nm
1. A student is observing a cell under the microscope. It is observe
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d to have supercoiled DNAwith histones. Which of the following
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would also be observed bythe student?
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a. A single circular chromosome
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b. A nucleus
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c. Free-floating nuclear material nm nm
d. No organelles nm
ANS: n m B
The cell described is a eukaryotic cell, so it has histones and a su
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percoiled DNA within itsnucleus; thus, the nucleus should be observe
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d. A single circular chromosome called a prokaryote contains free-
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floating nuclear material but hasno organelles.
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REF: n m p. 2 n m
2. A nurse is instructing the staff about cellular functions. Which c
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ellular function is the nurse describing when an isolated cell absor
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bs oxygen and uses it to transform(rnutrients to energy?
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,a. Metabolic absorption nm
b. Communication
c. Secretion
d. Respiration
ANS: n m D
The cell’s ability to absorb oxygen is referred to as respiration whil
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e its communication abilityinvolves maintenance of a steady dynamic
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m state, metabolic(rabsorption provides nutrition, and secretion allows for
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n m the synthesizing of new substances.
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REF: n m p. 2 n m
, 3. A eukaryotic cell is undergoing DNA replication. In which region of
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n m the cell would(rmost ofthe genetic information be contained?
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a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus Cytoplasm nm
ANS: n m C
The region of the cell that contains genetic material, including a larg
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e amount of ribonucleicacid, most of the DNA, and DNA-
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binding proteins, is the nucleolus, which is located withinthe cell’s nuc
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leus. Mitochondria is associated with cellular respiration, while ribosom
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es are involved with protein manufacturing. Cytoplasm is(ra fluid filling
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m that is a component of the cell.
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REF: n m p. 2
n m