(a) What is common for Cuscuta, ticks and leeches ? (b) Name the subs

1.	(a) What is common for Cuscuta, ticks and leeches ? (b) Name the substances on which the following enzymes act in the human digestive system : (i) Trypsin (ii) Amylase (iii) Pepsin (iv) Lipase (c) Why does absorption of digested food occur mainly in the small intestine ?
Answer» (a) Parasitic mode of nutrition. (b) (i) Proteins (ii) Starch (iii) Proteins (iv) Fats. (c) Absorption of digested foods occurs mainly in the small intestine due to the presence of a large number of finger like projections called villi.

(a) What is common for Cuscuta, ticks and leeches ? (b) Name the substances on which the following enzymes act in the human digestive system : (i) Trypsin (ii) Amylase (iii) Pepsin (iv) Lipase (c) Why does absorption of digested food occur mainly in the small intestine ?

Answer»

(a) Parasitic mode of nutrition.

(b)

(i) Proteins

(ii) Starch

(iii) Proteins

(iv) Fats.

(c) Absorption of digested foods occurs mainly in the small intestine due to the presence of a large number of finger like projections called villi.