Huether Mccance Pathophysiology Exam A+ Grade Assured Complete Solutions And Verified Answers

PATHOPHYSIOLOGY EXAM ms




Exam Solution
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McCance Pathophysiology chapter 1 sample questions ms ms ms ms ms ms




2026 A+ GRADE ASSURED COMPLETE SOLUTIONS AND
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VERIFIED ANSWERS (7879F) ms ms




QUESTION 1 ms




Chapter 1: Cellular Biology MULTIPLE CHOICE 1. Which statement best describes the c
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ellular function of metabolic absorption?
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a. Cells can produce proteins.
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b. Cells can secrete digestive enzymes.
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c. Cells can take in and use nutrients.
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d. Cells can synthesize fats.
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ANSWER

ANS: C In metabolic absorption, all cells take in and use nutrients and other substances from their s
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urroundings. The remaining options are not inclusive in their descriptions of cellular metabolic abso
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rption. PTS: 1 REF: Page 2
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QUESTION 2 ms




2. Most of a cell's genetic information, including RNA and DNA, is contained in the:
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a. Mitochondria
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b. Ribosome
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c. Nucleolus
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d. Lysosome
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ANSWER

ANS: C The nucleus contains the nucleolus, a small dense structure composed largely of RNA, most o
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f the cellular DNA, and the DNA-
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binding proteins, such as the histones, which regulate its activity. The other options do not contain
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most of a cell's genetic information. PTS: 1 REF: Page 2
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QUESTION 3 ms

, 3. Which component of the cell produces hydrogen peroxide (H2O2) by using oxygen t
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o remove hydrogen atoms from specific substrates in an oxidative reaction?
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a. Lysosomes
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b. Peroxisomes
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c. Ribosomes
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d. Oxyhydrosomes
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ANSWER

ANS: B Peroxisomes are so named because they usually contain enzymes that use oxygen to remove
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hydrogen atoms from specific substrates in an oxidative reaction that produces H2O2, which is a po
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werful oxidant and potentially destructive if it accumulates or escapes from peroxisomes. Ribosomes
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are RNA-
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protein complexes (nucleoproteins) that are synthesized in the nucleolus and secreted into the cytop
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lasm through pores in the nuclear envelope called nuclear pore complexes. Lysosomes are saclike str
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uctures that originate from the Golgi complex and contain more than 40 digestive enzymes called hy
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drolases, which catalyze bonds in proteins, lipids, nucleic acids, and carbohydrates. Oxyhydrosomes a
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re involved in enzyme production. PTS: 1 REF: Page 8
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QUESTION 4 ms




4. Which cell component is capable of cellular autodigestion when it is released durin
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g cell injury?
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a. Ribosome
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b. Golgi complex
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c. Smooth endoplasmic reticulum
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d. Lysosomes
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ANSWER

ANS: D The lysosomal membrane acts as a protective shield between the powerful digestive enzyme
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s within the lysosome and the cytoplasm, preventing their leakage into the cytoplasmic matrix. Disru
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ption of the membrane by various treatments or cellular injury leads to a release of the lysosomal e
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nzymes, which can then react with their specific substrates, causing cellular self-
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digestion. The other options do not correctly describe this process. PTS: 1 REF: Pages 7-8
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QUESTION 5 ms




7. What organic compound facilitates transportation across cell membranes by acting
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as receptors, transport channels for electrolytes, and enzymes to drive active pumps?
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a. Lipidsms



b. Proteases
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c. Proteins
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d. Carbohydrates
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ANSWER

ANS: C Proteins act as (1) recognition and binding units (receptors) for substances moving in and o
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ut of the cell; (2) pores or transport channels for various electrically charged particles called ions or
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