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 ___________________?
Correct answer: B. Saliva
- A. Blood
- B. Saliva
- C. Intestine
- D. Gland
Explanation
Ptyalin, also called salivary amylase, begins starch digestion in the mouth and is secreted into saliva. It is therefore found in saliva rather than blood or the intestine.
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