

MCQOPTIONS
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1. |
Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in ___________________? |
A. | Blood |
B. | Saliva |
C. | Intestine |
D. | Gland |
Answer» C. Intestine | |