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Test Bank - Huether and McCances Understanding Pathophysiology, Canadian Edition, 2nd Edition (Power-Kean, 2023), Chapter 1-42 | All Chapters ||Complete A+ Guide$17.99
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Test Bank - Huether and McCances Understanding Pathophysiology, Canadian Edition, 2nd Edition (Power-Kean, 2023), Chapter 1-42 | All Chapters ||Complete A+ Guide
Test Bank - Huether and McCances Understanding Pathophysiology, Canadian Edition, 2nd Edition (Power-Kean, 2023), Chapter 1-42 | All Chapters ||Complete A+ Guide
Understanding Pathophysiology 2nd Edition Huether Test Bank
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NURSINGTB.COM
, Understanding Pathophysiology 2nd Edition Huether Test Bank f f f f f f
Chapter 01: Cellular Biology
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Huether & McCance: Understanding Pathophysiology, 2nd Edition Canada
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MULTIPLE CHOICE f
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 chromosome
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b. A nucleus f
c. Free-floating nuclear material f f
d. No organelles f
ANS: B f
The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within its
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nucleus; thus, the nucleus should be observed. A single circular chromosome called a
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prokaryote contains free-floating nuclear material but has no organelles.
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REF: p. 2 f f
2. A nurse is instructing the staff about cellular functions. Which cellular function is the nurse
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f describing when an isolated cell absorbs oxygen and uses it to transform nutrients to energy?
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a. Metabolic absorption f
b. Communication
c. Secretion
d. Respiration
ANS: NURSINGTB.COM
fD
The cell’s ability to absorb oxygen is referred to as respiration while its communication ability
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involves maintenance of a steady dynamic state, metabolic absorption provides nutrition, and
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secretion allows for the synthesizing of new substances.
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REF: p. 2 f f
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?
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a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus Cytoplasm f
ANS: C f
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
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involved with protein manufacturing. Cytoplasm is a fluid filling that is a component of the
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cell.
f
REF: p. 2 f f
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, Understanding Pathophysiology 2nd Edition Huether Test Bank f f f f f f
4. Which of the following can remove proteins attached to the cell’s bilayer by dissolving the
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layer itself?
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a. Peripheral membrane proteins f f
b. Integral membrane proteins f f
c. Glycoproteins
d. Cell adhesion molecules f f
ANS: B f
Proteins directly attached to the membrane bilayer can be removed by the action of integral
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membrane proteins that dissolve the bilayer. Peripheral membrane proteins reside at the
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surface while cell adhesion molecules are on the outside of the membrane. Glycoprotein
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marks cells and does not float.
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REF: p. 7 f f
5. Which of the following can bind to plasma membrane receptors?
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a. Oxygen
b. Ribosomes
c. Amphipathic lipids f
d. Ligands
ANS: D f
Ligands are the only specific molecules that can bind with receptors on the cell membrane.
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REF: p. 9 f f
6. A nurse is reviewing a report from a patient with metastatic cancer. What alternation in the
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extracellular matrix would suN
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iagnBo.
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metastatic cancer?
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a. Decreased fibronectin
U S N T O f
f
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f
f
f
f
f
f f
b. Increased collagen f
c. Decreased elastin f
d. Increased glycoproteins f
ANS: A f
Only a reduced amount of fibronectin is found in some types of cancerous cells, allowing
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them to travel or metastasize.
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REF: p. 10 f f
7. Which form of cell communication is used to relate to other cells in direct physical contact?
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a. Cell junction f
b. Gap junction f
c. Desmosome
d. Tight junction f
ANS: A f
Cell junctions hold cells together and permit molecules to pass from cell to cell.
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Gap junctions allow for cellular communication between cells. Neither desmosomes nor tight
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junctions are associated with cellular communication.
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REF: p. 11 f f
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, Understanding Pathophysiology 2nd Edition Huether Test Bank f f f f f f
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 f
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
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glucagon. None of the other options involve signaling that is associated with a local chemical
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mediator like insulin.
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REF: p. 12 f f
9. In cellular metabolism, each enzyme has a high affinity for a:
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a. solute.
b. substrate.
c. receptor.
d. ribosome.
ANS: B f
Each enzyme has a high affinity for a substrate, a specific substance converted to a product of
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the reaction. Cellular metabolism is not dependent on an attraction between an enzyme and any
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of the remaining options.
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REF: p. 16 fff f
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10. An athlete runs a marathon, after which his muscles feel fatigued and unable to contract. The
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athlete asks the nurse why this happened. The nurse’s response is based on the knowledge that
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the problem is result of a deficiency of:
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a. GTP
b. AMP
c. ATP
d. GMP
ANS: C f
When ATP is deficient, impaired muscle contraction results. None of the other options are
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involved in muscle contraction.
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REF: p. 16 f f
11. Which phase of catabolism produces the most ATP?
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a. Digestion
b. Glycolysis
c. Oxidation
d. Citric acid cycle f f
ANS: D f
While some ATP is produced during the oxidation and glycolysis phases, most of the ATP is
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generated during the citric acid cycle. Digestion does not produce any ATP.
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