Question

Which of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product?
(i) Small intestine: Protein $\stackrel{Pepsin}{\to }$ Amino acid
(ii) Stomach : Fat $\stackrel{Lipase}{\to }$ Micelles
(iii) Duodenum : Triglycerides $\stackrel{Trypsin}{\to }$ Monoglyceride
(iv) Buccal cavity : Starch $\stackrel{Amylase}{\to }$ Disaccharide
(v) Jejunum: Peptones $\stackrel{Pepsin}{\to }$ Amino acid
(vi) Buccal cavity : Starch $\stackrel{Amyloglycerate}{\to }$ Maltose

• A. (i),(ii) and (iii) are correct
• B. (iv) only
• C. (iv) and (v) are correct
• D. All are correct

Answer 1

The correct option is B (iv) only

(i) Pepsin digest protein in the stomach.

(ii)Lipase digest emulsified fat in the intestine.

(iii)In duodenum trypsin digest protein or dipeptides.

(iv) Starch is digested into maltose by salivary amylase in the buccal cavity.

(v)Pepsin digest protein in the stomach.

(vi) Starch is digested into maltose by salivary amylase in the buccal cavity.

So the correct option is '(iv) only '