Rapid Influx of Ca⁺⁺ into the Cytoplasm Can Occur as a Result

Multiple Choice

Rapid influx of Ca⁺⁺ into the cytoplasm can occur as a result of the binding of hormones to a receptor activating phospholipase C activity. The increased level of Ca⁺⁺ is derived from all of the following EXCEPT:

A) lysozymes.
B) calciosomes.
C) endoplasmic reticulum.
D) extracellular stores through Ca⁺⁺ channels in the plasma membrane.
E) all of the above.