Test Bank for Understanding Pathophysiology 6th Edition By Sue E. Huether Kathryn L. McCance ISBN: 9780323778855 COMPLETE GUIDE 100% VERIFIED A+ GRADE ASSURED!!! LATEST UPDATE!!!!!!

Test Bank Understanding Pathophysiology 6th Edition


Chapter 01: Cellular Biology
rt rt rt




Huether & McCance: Understanding Pathophysiology, 6th Edition
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MULTIPLE CHOICES rt




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 chromosomert rt rt




b. A nucleus rt




c. Free-floating nuclear material rt rt




d. No organelles rt




ANS: B rt




The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within its
rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt




nucleus; thus, the nucleus should be observed. A single circular chromosome called a
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rt prokaryote contains free-floating nuclear material but has no organelles.
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REF: p. 2 rt rt




2. A nurse is instructing the staff about cellular functions. Which cellular function is the nurse
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rt describing when an isolated cell absorbs oxygen and uses it to transform nutrients to energy?
rt rt rt rt rt rt rt rt rt rt rt rt rt rt




a. Metabolic absorption rt




b. Communication
c. Secretion
d. Respiration

ANS: D rt




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, Test Bank Understanding Pathophysiology 6th Edition
The cell’s ability to absorb oxygen is referred to as respiration while its communication ability
rt rt rt rt rt rt rt rt rt rt rt rt rt rt




involves maintenance of a steady dynamic state, metabolic absorption provides nutrition, and
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rt secretion allows for the synthesizing of new substances.
rt rt rt rt rt rt rt




REF: p. 2 rt rt




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?
rt rt rt rt rt




a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus Cytoplasm rt




ANS: C rt




The region of the cell that contains genetic material, including a large amount of ribonucleic
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acid, most of the DNA, and DNA-binding proteins, is the nucleolus, which is located within
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the cell’s nucleus. Mitochondria is associated with cellular respiration, while ribosomes are
rt rt rt rt rt rt rt rt rt rt rt rt




rt involved with protein manufacturing. Cytoplasm is a fluid filling that is a component of the
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rt cell.


REF: p. 2 rt rt




4. Which of the following can remove proteins attached to the cell’s bilayer by dissolving the
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layer itself?
rt rt




a. Peripheral membrane proteins rt rt




b. Integral membrane proteins rt rt




c. Glycoproteins
d. Cell adhesion molecules rt rt




ANS: B rt




Proteins directly attached to the membrane bilayer can be removed by the action of integral
rt rt rt rt rt rt rt rt rt rt rt rt rt rt




membrane proteins that dissolve the bilayer. Peripheral membrane proteins reside at the
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rt surface while cell adhesion molecules are on the outside of the membrane. Glycoprotein
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rt marks cells and does not float.
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REF: p. 7 rt rt




5. Which of the following can bind to plasma membrane receptors?
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, Test Bank Understanding Pathophysiology 6th Edition
a. Oxygen
b. Ribosomes
c. Amphipathic lipids rt




d. Ligands

ANS: D rt




Ligands are the only specific molecules that can bind with receptors on the cell membrane.
rt rt rt rt rt rt rt rt rt rt rt rt rt rt




REF: p. 9 rt rt




6. A nurse is reviewing a report from a patient with metastatic cancer. What alternation in the
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rt pU
extracellular matrix would suN rtSthIeNdG
poR iaT
gnBo.
siC
s ofM
metastatic cancer?
rt rt rt rt rt




a. Decreased fibronectin rt




b. Increased collagen rt




c. Decreased elastin rt




d. Increased glycoproteins rt




ANS: A rt




Only a reduced amount of fibronectin is found in some types of cancerous cells, allowing
rt rt rt rt rt rt rt rt rt rt rt rt rt rt




them to travel or metastasize.
rt rt rt rt rt




REF: p. 10 rt rt




7. Which form of cell communication is used to relate to other cells in direct physical contact?
rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt




a. Cell junction rt




b. Gap junction rt




c. Desmosome
d. Tight junction rt




ANS: A rt




Cell junctions hold cells together and permit molecules to pass from cell to cell.
rt rt rt rt rt rt rt rt rt rt rt rt rt




Gap junctions allow for cellular communication between cells. Neither desmosomes nor tight
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junctions are associated with cellular communication.
rt rt rt rt rt rt




REF: p. 11 rt rt




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, Test Bank Understanding Pathophysiology 6th Edition


8. Pancreatic beta cells secrete insulin, which inhibits secretion of glucagon from neighboring
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alpha cells. This action is an example of which of the following signaling types?
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a. Paracrine
b. Autocrine
c. Neurohormonal
d. Hormonal

ANS: A rt




Paracrine signaling involves the release of local chemical mediators that are quickly taken up,
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destroyed, or immobilized, as in the case of insulin and the inhibition of the secretion of
rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt




rt glucagon. None of the other options involve signaling that is associated with a local chemical
rt rt rt rt rt rt rt rt rt rt rt rt rt rt




mediator like insulin.
rt rt rt




REF: p. 12 rt rt




9. In cellular metabolism, each enzyme has a high affinity for a:
rt rt rt rt rt rt rt rt rt rt




a. solute.
b. substrate.
c. receptor.
d. ribosome.

ANS: B rt




Each enzyme has a high affinity for a substrate, a specific substance converted to a product of
rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt




the reaction. Cellular metabolism is not dependent on an attraction between an enzyme and
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rt any of the remaining options.
rt rt rt rt




REF: r t p. 16rt




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