Each of the Following Is Correct About Cholera and Its

question 47

Multiple Choice

Each of the following is correct about cholera and its effect on G-protein-adenylyl cyclase activity except

• A)Vibrio cholera bacteria colonize the gut.
• B)Cholera toxin is secreted by Vibrio cholera bacteria.
• C)Intestinal cells infected with cholera toxin import abnormally high levels of salts and fluids into the bloodstream.
• D)Cholera toxin alters G_sα so that it no longer hydrolyzes GTP.
• E)Intestinal cells infected with cholera toxin maintain abnormally high cAMP levels.

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Definitions:

Reaction Formation

A psychological defense mechanism in which a person unconsciously replaces unacceptable thoughts or feelings with their opposites.

Phallic Stage

A phase in Freud's psychosexual development theory, occurring from about ages 3 to 6, where the libido's focus is on the genital area.

Psychosexual Development

A Freudian theory that proposes that child development occurs in a series of stages which are characterized by sexual pleasures focusing on different parts of the body.

Flirtatious

Exhibiting behavior aimed at attracting or engaging someone romantically or sexually through acts or remarks that suggest interest without explicit intention.