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