If salivary amylase is lacking in the saliva, what will not happen?

Proteins breaking down into amino acids.

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Starch breaking down into sugars.

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Fats breaking down into fatty acids and glycerol.

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Absorption of vitamins.

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Solution

The correct option is B Starch breaking down into sugars.
Salivary amylase/ alpha amylase/ ptyalin is an hydrolytic enzyme that breakdown starch into maltose and dextrin. It is present in saliva. They have an optimum pH of 6.9 approximately. It is functional in basic medium only, so when it comes to stomach it becomes non functional.

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Similar questions

Question 5
If salivary amylase is lacking in the saliva, which of the following events in the mouth cavity will be affected?

(a) Proteins breaking down into amino acids
(b) Starch breaking down into sugars
(c) Fats breaking down into fatty acids and glycerol
(d) Absorption of vitamins

If the saliva is lacking in salivary amylase, then which of the following processes taking place in the buccal cavity will be affected ?.
(a) proteins breaking down into amino acids
(b) starch breaking down into sugars
(c) fats breaking down into fatty acids and glycerol
(d) intestinal layer breaking down leading to ulcers

Salivary amylase breaks down starch into

Saliva breaks down starch into simple sugars.

Q. Question 9
The enzymes present in the saliva convert

(a) Fats into fatty acids and glycerol.
(b) Starch into simple sugars.
(c) Proteins into amino acids.
(d) Complex sugars into simple sugars.

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