Digestion and Absorption | Paachan Evan Avashoshan | पाचन ग्रंथियाँ - II | L - 5 | NEET 2023

Digestion And Absorption/Class 11/NCERT/Chapter 16/Quick Revision Series/NEET

The following statements are based on the digestion and absorption of food. Select the correct and incorrect statements and choose an option accordingly from the codes given below. I. Active absorption of monosaccharides in the stomach and jejunum is carried out by facilitated transport. II. Most of the amino acids (above 95%) are absorbed in the duodenum and jejunum parts of the small intestine. III. Food is digested completely before absorption and is used by the body tissues. IV. Absorption of water from the small intestine is concerned with the absorption of salts and digested food in order to maintain an osmotic balance with the blood.

Consider the following statements regarding the digestion and absorption of food in humans. I. Antipellagra vitamin is nicotinamide which is present in milk, yeast, meat , leafy vegetable and whole grains. II. Deficiency of vitamin thiamin causes loss of appetite, muscle depreciation, fatigue and mental confusion. III. Prolonged deficiency of tocopherol reduces reproductive capacity in human beings. IV. Gastrovascular cavity performs both functions, i.e., digestion and distribution of nutrients. Choose the correct option accordingly.

Which of the following statemetns is/are incorrect? (i) Absroption of simple sugar, alcohol, some water and medicines takes place in stomach. (ii) Maximum water absorption occurs in large intestine. (iii) Small intestine is the major site of digestion and absorption of food. (iv) Fatty acid and glycerol are absorbed by lacteals. (v) Nothing is absorbed in mouth and large intestine.

Revision - Human Digestive System (मानव पाचन तंत्र)|Associated Digestive Glands (सम्बद्ध पाचक ग्रंथियाँ)|Rumination (रोमेंथन)|Summary

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