Enzymes are _______.

A) permanently changed by the substrate
B) catalysts
C) made of protein
D) made of protein and catalysts
E) made of protein, catalysts and permanently changed by the substrate


D) made of protein and catalysts

Anatomy & Physiology

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What is obesity, and what health problems accompany or follow its onset?

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Dopamine is secreted by the ________ and is deficient in ________ disease.

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Anatomy & Physiology