BIOL 331
BIOL331 / BIOL 331 Module 6| Pathophysiology |
(Latest Update ) Questions & Answers
| Grade A | 100% Correct - Portage Learning.
Question 1
A nurse is explaining cellular function to a student. The term for the transport of
dissolved substances into cells is:
A. Digestion
B. Secretion
C. Absorption
D. Excretion
CORRECT ANSWER: C
RATIONALE: Absorption is the process by which cells take in dissolved nutrients and
other substances from their external environment.
Question 2
The cellular process of breaking down food particles into simpler, absorbable forms is
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known as:
A. Respiration
B. Digestion
C. Biosynthesis
D. Egestion
CORRECT ANSWER: B
RATIONALE: Intracellular digestion involves enzymes (often in lysosomes) breaking
down macromolecules like proteins and polysaccharides into their monomeric subunits
(e.g., amino acids, monosaccharides).
Question 3
A nursing student correctly identifies that the process of breaking down nutrients to
release stored energy for cellular work is:
A. Absorption
B. Respiration
C. Secretion
D. Reproduction
CORRECT ANSWER: B
RATIONALE: Cellular respiration is the metabolic process that converts biochemical
energy from nutrients into adenosine triphosphate (ATP), the cell's energy currency.
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Question 4
The removal of soluble metabolic waste products (like urea) from the cell is defined as:
A. Egestion
B. Secretion
C. Excretion
D. Digestion
CORRECT ANSWER: C
RATIONALE: Excretion refers to the elimination of soluble waste products generated by
cellular metabolism, such as carbon dioxide and nitrogenous wastes.
Question 5
The removal of nonsoluble waste materials (like undigested fibers) from a cell is defined
as:
A. Egestion
B. Secretion
C. Excretion
D. Absorption
CORRECT ANSWER: A
RATIONALE: Egestion is the process of expelling indigestible or non-soluble material
from a cell, distinct from excreting soluble metabolic wastes.
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Question 6
A cell releases a hormone it has synthesized. This process is an example of:
A. Excretion
B. Egestion
C. Secretion
D. Absorption
CORRECT ANSWER: C
RATIONALE: Secretion is the active process by which a cell releases a useful product it
has manufactured, such as a hormone, enzyme, or neurotransmitter, for use elsewhere.
Question 7
The maintenance of a stable internal environment within a cell, such as pH and
electrolyte balance, is termed:
A. Homeostasis
B. Irritability
C. Metabolism
D. Reproduction
CORRECT ANSWER: A
RATIONALE: Homeostasis is the state of steady internal conditions maintained by living
systems, crucial for optimal cellular function and health.
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