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Test Bank - Huether and McCances Understanding Pathophysiology, Canadian Edition, 2nd Edition (Power-Kean, 2023), Chapter 1-42 | All Chapters |Complete Solution |Guide A+.$18.49
Test Bank - Huether and McCances Understanding Pathophysiology, Canadian Edition, 2nd Edition (Power-Kean, 2023), Chapter 1-42 | All Chapters |Complete Solution |Guide A+.
Test Bank - Huether and McCances Understanding Pathophysiology, Canadian Edition, 2nd Edition (Power-Kean, 2023), Chapter 1-42 | All Chapters |Complete Solution |Guide A+.Test Bank - Huether and McCances Understanding Pathophysiology, Canadian Edition, 2nd Edition (Power-Kean, 2023), Chapter 1-42 |...
1. A student is observing a cell under the microscope. It is observed to have supercoiled
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i;ki; DNA with histones. Which of the following would also be observed by the
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i;ki; student? a. A single circular chromosome i;ki; i;ki; i;ki; i;ki; i;ki;
b. A nucleus i;ki;
c. Free-floating nuclear material i;ki; i;ki;
d. No organelles i;ki;
ANS: B i;ki;
The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within
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its 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 i;ki; i;ki;
2. A nurse is instructing the staff about cellular functions. Which cellular function is the
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nurse describing when an isolated cell absorbs oxygen and uses it to transform nutrients
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to energy?
i;ki; i;ki;
a. Metabolic absorption i;ki;
b. Communication
c. Secretion
d. Respiration
ANS: D i;ki; NURSINGTB.COM
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 i;ki; i;ki;
3. A eukaryotic cell is undergoing DNA replication. In which region of the cell would most
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i;ki; of the genetic information be contained?
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a. Mitochondria
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, b. Ribosome
c. Nucleolus
d. Nucleus Cytoplasm i;ki;
ANS: C i;ki;
The region of the cell that contains genetic material, including a large amount of
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ribonucleic acid, most of the DNA, and DNA-binding proteins, is the nucleolus, which is
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located within the cell’s nucleus. Mitochondria is associated with cellular respiration,
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while ribosomes are involved with protein manufacturing. Cytoplasm is a fluid filling
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that is a component of the cell.
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REF: p. 2 i;ki; i;ki;
4. Which of the following can remove proteins attached to the cell’s bilayer by dissolving the layer
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itself?
a. Peripheral membrane proteins i;ki; i;ki;
b. Integral membrane proteins i;ki; i;ki;
c. Glycoproteins
d. Cell adhesion molecules i;ki; i;ki;
ANS: B i;ki;
Proteins directly attached to the membrane bilayer can be removed by the action of
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integral membrane proteins that dissolve the bilayer. Peripheral membrane proteins
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reside at the surface while cell adhesion molecules are on the outside of the membrane.
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Glycoprotein marks cells and does not float.
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REF: p. 7 i;ki; i;ki;
5. Which of the following can bind to plasma membrane receptors?
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a. Oxygen
b. Ribosomes
c. Amphipathic lipids i;ki;
d. Ligands
ANS: D i;ki;
Ligands are the only specific molecules that can bind with receptors on the cell membrane.
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REF: p. 9 i;ki; i;ki;
6. A nurse is reviewing a report from a patient with metastatic cancer. What alternation in the
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extracellular matrix would support the diagnosis of metastatic cancer?a.
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, Decreased fibronectin i;ki;
b. Increased collagen i;ki;
c. Decreased elastin i;ki;
d. Increased glycoproteins i;ki;
ANS: A i;ki;
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 i;ki; i;ki;
7. Which form of cell communication is used to relate to other cells in direct physical contact?
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a. Cell junction
i;ki; i;ki; i;ki;
b. Gap junction i;ki;
c. Desmosome
d. Tight junction i;ki;
ANS: A i;ki;
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 i;ki; i;ki;
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? a.
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i;ki; Paracrine
b. Autocrine
c. Neurohormonal
d.
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