Cyanide prevents oxygen fromaccepting electrons at the end ofthe electron transport chain. Oneof the first symptoms of cyanidepoisoning is unconsciousness. Which of the following is a logicalexplanation for why the brain isaffected by cyanide more than therest of the body?

a. The brain runs out of oxygenbefore the rest of the body does.
b. Cyanide prevents oxygen frombeing used in the brain.

The answer is A.

Explanation:

In the case of cyanide poisining which prevents the oxygen from being used by the body, the brain is one of the first organs that gets effected because it uses around 20% of the total oxygen intake of the body and the other systems and organs mostly depend on the brain to function properly so the brain runs out of oxygen before the other parts of the body.

I hope this answer helps.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

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