Which of the Following Statements About Gram-Negative Cell Walls Is

question 22

Multiple Choice

Which of the following statements about gram-negative cell walls is FALSE?

• A) Their Gram reaction is due to the outer membrane.
• B) They protect the cell in a hypotonic environment.
• C) They are toxic to humans.
• D) They have an extra outer layer composed of lipoproteins, lipopolysaccharides, and phospholipids.
• E) They are sensitive to penicillin.

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Definitions:

Efferent

Relating to nerve fibers that carry impulses away from the central nervous system to effectors such as muscles or glands.

GABA

Gamma-aminobutyric acid, a neurotransmitter in the brain that plays a key role in inhibiting nerve transmission, contributing to motor control, vision, and regulation of anxiety.

Insomnia

A sleep disorder characterized by difficulty falling asleep, staying asleep, or achieving restorative sleep, leading to daytime impairment.

Schizophrenia

A mental disorder characterized by disruptions in thought processes, perceptions, emotional responsiveness, and social interactions.