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Metabolism › View

Increasing the temperature increases the rate of an enzyme-catalyzed reaction. Once a critical temperature is reached, the reaction stops. Why does this happen?

A. The concentration of reactants drop

B. The enzymes have all been consumed in the reation

C. The increase in temperature alters the pH

D. The polypeptide chains in the enzyme denature

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Hormones › View

Luteinizing hormone (LH) is to…

A. Stimulates growth, protein synthesis and fat metabolism

B. Stimulates thyroid to secrete thyroxine

C. Stimulates the reabsorption of water

D. Stimulates the secretion of testosterone

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