When Ca²⁺diffuses into the cytoplasm of muscle cells and initiates the crossbridge cycle without a neurotransmitter trigger, the animal is most likely stressed .

Question

Quizplus · Accepted Answer

The sequence "Ca²⁺" does not correspond to any known biological molecule or process. The initiation of the crossbridge cycle in muscle cells is typically regulated by calcium ions released in response to a neurotransmitter signal at the neuromuscular junction, not by stress directly.

When Ca2+diffuses into the Cytoplasm of Muscle Cells and Initiates

When Ca²⁺diffuses into the Cytoplasm of Muscle Cells and Initiates