Use the following to answer the questions below:
In each of the following multiple-choice questions, characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
-Statements: (1) Inhibition of the ETC is the mechanism by which cyanide exerts its deadly effect.
(2) Brown fat cells contain the uncoupling agent thermogenin, a protein that creates a proton channel through the outer mitochondrial membrane.
(3) One of the body's mechanisms for adaptation to cold is the production of brown fat tissue.

Question

Quizplus · Accepted Answer

(1) TRUE - Inhibition of the ETC is the mechanism by which cyanide exerts its deadly effect.
(2) TRUE - Brown fat cells contain the uncoupling agent thermogenin, a protein that creates a proton channel through the outer mitochondrial membrane.
(3) FALSE - Although production of brown fat tissue is a mechanism for adaptation to cold, it is not the only mechanism. Therefore, statement (3) is not entirely true.
Therefore, two of the three statements are true, which makes choice B the correct answer.

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