The Venom of Cobras Contains a Mixture of Substances That

question 28

Multiple Choice

The venom of cobras contains a mixture of substances that have a variety of physiological effects. One substance in the venom works by preventing acetylcholine from binding to muscle receptors. How does the venom affect the prey of the cobra?

• A) Action potentials would be continuously generated, causing convulsive muscle contractions.
• B) Muscle contractions would be prevented, causing paralysis.
• C) Muscle contractions could still occur, but relaxation of the muscle would be impaired.
• D) Action potentials would be continuously generated, causing convulsive muscle contractions; muscle contractions would then be prevented, causing paralysis.

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