Cyanide Poisoning Quickly Leads to Death Because It Blocks the Final

question 7

Multiple Choice

Cyanide poisoning quickly leads to death because it blocks the final cytochrome molecule in the electron transport system. Why is this blockage lethal?

• A) All hydrogen ion pumps deactivate.
• B) NADH molecules cannot give off their electrons.
• C) FADH₂ molecules cannot give off their electrons.
• D) Electrons cannot transfer to oxygen.
• E) Coenzyme Q disassociates and becomes nonfunctional.

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Definitions:

Carrier

An individual or entity that transports substances or genetic information from one place to another, such as a person who carries and can pass on a genetic mutation without exhibiting symptoms of the disease.

Dominant X-Linked Trait

A genetic characteristic encoded on the X chromosome that is expressed in individuals with only one copy of the gene.

Recessive Y-Linked Trait

A genetic characteristic controlled by a gene on the Y chromosome that is expressed only when present on a male's Y chromosome without a dominantly acting allele on the X chromosome.

Chromosome Deletion

A mutation involving the loss of a segment of DNA from a chromosome, potentially leading to genetic disorders or diseases due to the missing genes.