Tetrodotoxin Is a Heat-Stable Molecule Produced by Puffer Fish That

question 68

Multiple Choice

Tetrodotoxin is a heat-stable molecule produced by puffer fish that blocks the entry of sodium ions into neurons. About 10-45 minutes after ingestion of tetrodotoxin, tingling of the tongue and inner surface of the mouth begins. An ascending paralysis develops, and death can occur within 6-24 hours, after respiratory muscle paralysis.
-Why would this lead to paralysis and death?

• A) Neurons run out of energy.
• B) Neurons swell because of increased osmosis.
• C) Neurons can't recharge.
• D) Neurons can't fire without a voltage change.
• E) Neurons cannot release neurotransmitters.

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Definitions:

Nuclear Warheads

Explosive devices powered by nuclear reactions, capable of causing immense destruction when detonated.

Assimilation

The process by which individuals or groups of differing ethnic heritage are absorbed into the dominant culture of a society.

Acculturation

The process of cultural exchange and adaptation that occurs when two or more cultures come into direct continuous contact, leading to changes in the original cultural patterns of either or both groups.

Cultural Evolution

Cultural change over time- not to be confused with progress.