Chapter 1 - Homeostasis And Cellular Signaling

Question 1

What regulates transport of calcium?

Answer 1

Transport is regulated by ATP-dependent calcium pumps in the mitochondria and other organelles (sacroplamic reticulum in muscle)

Question 2

What regulates extrusion of calcium?

Answer 2

Cell membrane Na+/Ca+ exchangers and calcium pumps

Question 3

What regulates cytosolic calcium?

Answer 3

It is regulated by the binding of calcium to intracellular proteins