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Author Question: What explains the increased concentration of Ca++ in the ER? A) Calcium ions are (Read 951 times)

TI

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on: Jun 15, 2013
What explains the increased concentration of Ca++ in the ER?
A) Calcium ions are actively imported from the cytoplasm into the ER.
B) Calcium concentration is kept low in the cytoplasm because of its high usage level.
C) Calcium cannot enter the plasma membrane through ion channels.
D) Calcium levels in the blood or other body fluids are extremely low.
E) The Ca ions are recycled from other molecules in the ER.


coco

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Reply #1 on: Jun 16, 2013
In class, we found it was A. Good luck with the rest.


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TI

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Reply #2 on: Jun 17, 2013
Awesome, thanks.


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