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Huether & McCance: Understanding Pathophysiology, 6th Edition full test bank solution
Huether & McCance: Understanding Pathophysiology, 6th Edition full test bank solution
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UNDERSTANDING PATHOPHYSIOLOGY jjjj 6th EDITION HUETHER j j
jj jj
CHAPTER 1-42 TEST BANK jj jj jj
Chapter 01: Cellular Biology
jj jj jj
Huether & McCance: Understanding Pathophysiology, 6th Edition
jj jj jj jj jj jj
MULTIPLE CHOICE jj
1. A student is observing a cell under the microscope. It is observed to have
jj jj jj jj jj jj jj jj jj jj jj jj jj
jj supercoiled DNAwith histones. Which of the following would also be observed
jj jj jj jj jj jj jj jj jj jj
jj bythe student?
j jj
a. A single circular chromosome
jj jj jj
b. A nucleus jj
c. Free-floating nuclear material jj jj
d. No organelles jj
ANS: B jj
The cell described is a eukaryotic cell, so it has histones and a supercoiled
jj jj jj jj jj jj jj jj jj jj jj jj jj
jj DNA within itsnucleus; thus, the nucleus should be observed. A single circular
jj jj jj jj jj jj jj jj jj jj jj
jj chromosome called a prokaryote contains free-floating nuclear material but jj jj jj jj jj jj jj jj
jj hasno organelles.
j jj
REF: p. 2 jj jj
2. A nurse is instructing the staff about cellular functions. Which cellular function
jj jj jj jj jj jj jj jj jj jj jj
jj is the nurse describing when an isolated cell absorbs oxygen and uses it to
jj jj jj jj jj jj jj jj jj jj jj jj jj
transformnutrients to energy?
jj j jj jj
,a. Metabolic absorption jj
b. Communication
c. Secretion
d. Respiration
ANS: D jj
The cell’s ability to absorb oxygen is referred to as respiration while its
jj jj jj jj jj jj jj jj jj jj jj jj
jj communication abilityinvolves maintenance of a steady dynamic state,
jj jj jj jj jj jj jj
jj metabolicabsorption provides nutrition, and secretion allows for the
j jj jj jj jj jj jj jj
jj synthesizing of new substances. jj jj jj
REF: p. 2 jj jj
,3. A eukaryotic cell is undergoing DNA replication. In which region of the cell
jj jj jj jj jj jj jj jj jj jj jj jj
wouldmost ofthe genetic information be contained?
jj j jj jj jj jj jj
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus Cytoplasm jj
ANS: C jj
The region of the cell that contains genetic material, including a large amount of
jj jj jj jj jj jj jj jj jj jj jj jj jj
jj ribonucleicacid, most of the DNA, and DNA-binding proteins, is the nucleolus,
jj jj jj jj jj jj jj jj jj jj
jj which is located withinthe cell’s nucleus. Mitochondria is associated with cellular
jj jj jj jj jj jj jj jj jj jj
jj respiration, while ribosomes are involved with protein manufacturing. Cytoplasm
jj jj jj jj jj jj jj jj
jj isa fluid filling that is a component of the cell.
j jj jj jj jj jj jj jj jj jj
REF: p. 2 jj jj
, 4. Which of the following can remove proteins attached to the cell’s bilayer
jj jj jj jj jj jj jj jj jj jj jj
jj bydissolving thelayer itself?
j jj jj
a. Peripheral membrane proteins jj jj
b. Integral membrane proteins jj jj
c. Glycoproteins
d. Cell adhesion molecules jj jj
ANS: B jj
Proteins directly attached to the membrane bilayer can be removed by the action
jj jj jj jj jj jj jj jj jj jj jj jj
jj of integralmembrane proteins that dissolve the bilayer. Peripheral membrane
jj jj jj jj jj jj jj jj
proteinsreside at the surface while cell adhesion molecules are on the outside of
jj j jj jj jj jj jj jj jj jj jj jj jj jj
jj the membrane. Glycoprotein marks cells and does not float.
jj jj jj jj jj jj jj jj
REF: p. 7 jj jj
5. Which of the following can bind to plasma membrane receptors?
jj jj jj jj jj jj jj jj jj
a. Oxygen
b. Ribosomes
c. Amphipathic lipids jj
d. Ligands
ANS: D jj
Ligands are the only specific molecules that can bind with receptors on the
jj jj jj jj jj jj jj jj jj jj jj jj
cellmembrane.
jj j
REF: p. 9 jj jj
6. A nurse is reviewing a report from a patient with metastatic cancer. What
jj jj jj jj jj jj jj jj jj jj jj jj
jj alternation in theextracellular matrix would support the diagnosis of
jj jj jj jj jj jj jj jj
jj metastaticcancer? j
a. Decreased fibronectin jj
b. Increased collagen jj
c. Decreased elastin jj
d. Increased glycoproteins jj
ANS: A jj
Only a reduced amount of fibronectin is found in some types of cancerous
jj jj jj jj jj jj jj jj jj jj jj jj
cells,allowingthem to travel or metastasize.
jj j jj jj jj jj
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