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TEST BANK FOR McCance & Huether’s Pathophysiology: The Biologic Basis for Disease in Adults and Children 9th Edition. by Julia Rogers. Chapter 1-49| Complete Guide| 100% Verified Answers.|978-0323789875|2024/2025$19.99
TEST BANK FOR McCance & Huether’s Pathophysiology: The Biologic Basis for Disease in Adults and Children 9th Edition. by Julia Rogers. Chapter 1-49| Complete Guide| 100% Verified Answers.|978-0323789875|2024/2025
Test Bank for McCance and Huether’s Pathophysiology: The Biologic Basis for Disease in Adults and Children, 9th Edition helps you understand the most important and most complex pathophysiology concepts. This updated text includes more than 1,300 full-color illustrations and photographs to make it...
Chapter 01: Cellular Biology
Rogers: McCance & Huether’s Pathophysiology, 9th Edition
MULTIPLE CHOICE
1. Which statement best describes the cellular function of metabolic absorption?
a. Cells can produce proteins.
b. Cells can secrete digestive enzymes.
c. Cells can take in and use nutrients.
d. Cells can synthesize fats.
ANSWER: C
In metabolic absorption, all cells take in and use nutrients and other substances from their
C
surroundings. The remaining options are not inclusive in their descriptions of cellular metabolic
absorption.
DIF:
2.
Cognitive Level: Remembering
LE
Where is most of a cell’s genetic information, including RNA and DNA, contained?
a. Mitochondria
ST
b. Ribosome
c. Nucleolus
d. Lysosome
BE
ANSWER: C
The nucleus contains the nucleolus, a small dense structure composed largely of RNA, most of
the cellular DNA, and the DNA-binding proteins, such as the histones, which regulate its
activity. The mitochondria are responsible for cellular respiration and energy production.
Ribosomes’ chief function is to provide sites for cellular protein synthesis. Lysosomes function
as the intracellular digestive system.
DIF: Cognitive Level: Remembering
3. Which component of the cell produces hydrogen peroxide (H2O2) by using oxygen to
remove hydrogen atoms from specific substrates in an oxidative reaction?
a. Lysosomes
b. Peroxisomes
c. Ribosomes
d. Endosome
2
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ANSWER: B
Peroxisomes are so named because they usually contain enzymes that use oxygen to remove
hydrogen atoms from specific substrates in an oxidative reaction that produces H2O2, which is a
powerful oxidant and potentially destructive if it accumulates or escapes from peroxisomes.
Ribosomes are RNA-protein complexes (nucleoproteins) that are synthesized in the nucleolus
and secreted into the cytoplasm through pores in the nuclear envelope called nuclear pore
complexes. Lysosomes are saclike structures that originate from the Golgi complex and contain
more than 40 digestive enzymes called hydrolases, which catalyze bonds in proteins, lipids,
nucleic acids, and carbohydrates. An endosome is a vesical that has been pinched off from the
cellular membrane.
DIF: Cognitive Level: Remembering
4. Which cell component is capable of cellular autodigestion when it is released during cell
injury?
C
a. Ribosome
b. Golgi complex LE
c. Smooth endoplasmic reticulum
d. Lysosomes
ANSWER: D
ST
The lysosomal membrane acts as a protective shield between the powerful digestive enzymes
within the lysosome and the cytoplasm, preventing their leakage into the cytoplasmic matrix.
Disruption of the membrane by various treatments or cellular injury leads to a release of the
lysosomal enzymes, which can then react with their specific substrates, causing cellular self-
BE
digestion. The chief function of a ribosome is to provide sites for cellular protein synthesis. The
Golgi complex is a network of flattened, smooth vesicles and membranes often located near the
cell nucleus. The smooth endoplasmic reticulum is involved in steroid hormone production and
removing toxic substances from the cell.
DIF: Cognitive Level: Remembering
5. Which cAMP-mediated response is related to antidiuretic hormone?
a. Increased heart rate and force of contraction
b. Secretion of cortisol
c. Increased retention of water
d. Breakdown of fat
ANSWER: C
3
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Antidiuretic hormone leads to increased retention of water in the body. Epinephrine causes
increases in heart rate and force of contraction. Increased cortisol secretion is due to ACTH.
Breakdown of fat is due to glucagon.
DIF: Cognitive Level: Remembering
6. During which phase of the cell cycle is DNA synthesized?
a. G1
b. S
c. G2
d. M
ANSWER: B
The four designated phases of the cell cycle are: (1) the G1 phase (G = gap), which is the period
C
between the M phase (M = mitosis) and the start of DNA synthesis; (2) the S phase (S
= synthesis), during which DNA is synthesized in the cell nucleus; (3) the G2 phase, during
LE
which RNA and protein synthesis occurs, the period between the completion of DNA synthesis
and the next phase (M); and (4) the M phase, which includes nuclear and cytoplasmic division.
DIF: Cognitive Level: Remembering
ST
7. What organic compound facilitates transportation across cell membranes by acting as
receptors, transport channels for electrolytes, and enzymes to drive active pumps?
a. Lipids
b. Proteases
BE
c. Proteins
d. Carbohydrates
ANSWER: C
Proteins have several functions, including acting as receptors, transport channels for electrolytes,
and enzymes to drive active pumps Lipids help act as the ―glue‖ holding cell membranes
together. Proteases cause the breakdown of protein. Carbohydrates are involved in cellular
protection and lubrication and help produce energy via oxidative phosphorylation.
DIF: Cognitive Level: Remembering
8. Understanding the various steps of proteolytic cascades may be useful in designing drug
therapy for which human diseases?
a. Cardiac and vascular disorders
b. Autoimmune and malignant disorders
4
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