Question

'The absorption of simple nutrients begins in the small intestine'. Which among the following is not absorbed into blood?

• A. Glucose
• B. Glycerol
• C. Fructose
• D. Galactose

Answer 1

The correct option is B Glycerol

The absorption of simple nutrients begins in the small intestine. Villi are small finger-like projections seen in the walls of the intestine. These increase the surface area of absorption of nutrients to a great extent within the small intestine. Villi are covered with a single layer of cells. They also contain blood capillaries and lacteals, the lymph capillaries. Glucose, fructose, galactose and amino acid are absorbed into blood and fatty acid and glycerol are absorbed into the lymph of lacteal. Therefore glycerol is the molecule which is not absorbed by blood from the given options.