The following enzymes are regulated by calcium ions _
Correct answer: C. Phosphoprotein phosphatase
- A. DNA polymerase
- B. Adenylate cyclase
- C. Phosphoprotein phosphatase
- D. Nitric oxide synthetase
Explanation
The correct answer is Phosphoprotein phosphatase because this enzyme is directly regulated by calcium ions, which play a critical role in its activity, influencing various signaling pathways within cells. DNA polymerase is involved in the synthesis of DNA and does not require calcium ions for its function, making it an incorrect choice. Adenylate cyclase can be influenced by calcium ions but is primarily regulated by other factors such as G-proteins. Nitric oxide synthetase does involve calcium in its regulation, but phosphoprotein phosphatase is more directly influenced by calcium levels in the context of enzyme regulation.
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