Which of the following functions is not performed by secretions from salivary glands?
(1) Digestion

Q: What is NEET?

NEET is a competitive examination conducted in India. This question is from the 2022 NEET Biology paper.

Q: How can I prepare for NEET Biology?

To prepare for NEET Biology, practice previous year questions (PYQs), understand concepts thoroughly, and solve mock tests regularly. This 2022 question covers Digestion and Absorption topic.

Q: What is the difficulty level of this question?

This NEET 2022 Biology question has a easy difficulty level and is marked as an important question.

Q: Where can I find more NEET previous year questions?

You can find more NEET previous year questions on AspirantMitraa. Browse by subject, topic, year, and difficulty level to practice effectively.

Question

Which of the following functions is not performed by secretions from salivary glands?
(1) Digestion of disaccharides (2) Control bacterial population in mouth
(3) Digestion of complex carbohydrates (4) Lubrication of oral cavity

Accepted Answer

Correct Answer: A - Digestion of disaccharidesExplanation: Salivary glands secrete saliva, which contains salivary amylase (ptyalin), lysozyme, and mucus. Salivary amylase acts on polysaccharides (complex carbohydrates like starch) but cannot digest disaccharides. Disaccharide digestion requires specific disaccharidases (maltase, sucrase, lactase) secreted by the intestinal brush border - not the salivary glands.Functions performed by saliva (why B, C, D are wrong):- Lysozyme in saliva controls the bacterial population in the mouth (B - performed)- Salivary amylase digests starch into maltose (complex carbohydrate digestion) (C - performed)- Mucus in saliva lubricates the oral cavity and food bolus (D - performed)Key Concept: Saliva composition - Salivary amylase (starch -> maltose), Lysozyme (antimicrobial), Mucin/mucus (lubrication). Salivary amylase acts optimally at pH 6.8 and is inactivated in the acidic stomach.

Which of the following functions is not performed by secretions from salivary glands? (1) Digestion of disaccharides (2) Control bacterial population in mouth (3) Digestion of complex carbohydrates (4) Lubrication of oral cavity

Master NEET with Our Test Series

More Questions from Digestion and Absorption

Frequently Asked Questions

Which of the following functions is not performed by secretions from salivary glands? (1) Digestion of disaccharides (2) Control bacterial population in mouth (3) Digestion of complex carbohydrates (4) Lubrication of oral cavity

Master NEET with Our Test Series

More Questions from Digestion and Absorption

Frequently Asked Questions