Acetylcholine (ACh)is released by motor neurons and binds to receptors on muscle cells to initiate action potentials. Some snake venom contains specific toxins that bind irreversibly to these receptors and block acetylcholine's ability to bind. If an animal is bitten by a snake with these toxins in its venom, what do you predict would happen?
A)The animal's muscles would not use stored ATP for energy.
B)The animal's muscles would contract uncontrollably.
C)The animal's muscles would not be able to contract.
D)The animal's muscles would use lactic acid fermentation for energy.

Question

Quizplus · Accepted Answer

If the toxins from the snake venom irreversibly bind to the receptors on the muscle cells and block acetylcholine's ability to bind, then the muscle cells will not be able to receive the signal to contract. Therefore, the animal's muscles would not be able to contract.

Acetylcholine (ACh)is Released by Motor Neurons and Binds to Receptors