In medicine, what is CPK?
Correct answer: An enzyme

YoungAtHeart
Enzymes are proteins, so that answer must also be correct, even if "enzyme" is the more specific answer.

ray
YoungAtHeart, True , but enzymatic proteins , ACT as metabolic catalysts.

Maestra
I picked protein too.

Player #120374466
Our bodies are so complex. The more scientists research the more complex it is. But it's nice these mechanisms are designed and put in place for our benefit

little b
I don't like enzyme

Classy
an enzyme

James
an anzyme

Ro
YoungAtHeart, mainly true except the only enzyme that isn’t a protein is ribozyme

pipay
YoungAtHeart, exactly my thoughts

Dreams
Cancer patients have this test (?) - I thought protein.

pinkcarol1
YoungAtHeart, I was going to post the same truth.