Rapid influx of Ca²⁺ into the cytoplasm can occur as a result of the binding of hormones to a receptor-activating phospholipase C activity.Which of the following does NOT contribute to the increased level of Ca²⁺?
A)lysozymes
B)calciosomes
C)endoplasmic reticulum
D)extracellular stores through Ca²⁺ channels in the plasma membrane

Question

Quizplus · Accepted Answer

Lysozymes do not contribute to the increased level of Ca²⁺. Lysozymes are enzymes that help to break down bacterial cell walls and are not involved in calcium signaling. The other options are involved in calcium signaling, with calciosomes and the endoplasmic reticulum serving as intracellular stores of calcium and extracellular stores being accessed through Ca²⁺ channels in the plasma membrane.

Rapid Influx of Ca²⁺ into the Cytoplasm Can Occur as a Result