How Does the Calcium Transport Cycle Via the Calcium ATPase

question 59

Multiple Choice

How does the calcium transport cycle via the calcium ATPase begin?

• A) It begins with the attachment of two calcium ions to cytoplasmic binding sites.
• B) It begins with the attachment of two protons to extracellular binding sites.
• C) It begins with the hydrolysis of ATP.
• D) It begins with opening of a channel pore.
• E) It begins with calcium binding to the extracellular side of the calcium ATPase.

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