Enzymes, vitamins and hormones can be classified into a single categor – McqOptions

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1.	Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these:
A.	enhance oxidative metabolism.
B.	are conjugated proteins.
C.	are exclusively synthesised in the body of a living organism.
D.	help in regulating metabolism.
Answer» E.

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