Intracellular Calcium Levels Have an Effect On

Question

Intracellular calcium levels have an effect on
A) cell motility.
B) cilia action.
C) secretion by exocytosis.
D) muscle contraction.
E) all of these.

Accepted Answer

Intracellular calcium levels influence a variety of cellular processes, including cell motility (by affecting the cytoskeleton), cilia action (by regulating the motor proteins), secretion by exocytosis (by triggering vesicle fusion with the plasma membrane), and muscle contraction (by enabling the interaction between actin and myosin). Therefore, all of the options listed are affected by intracellular calcium levels.