Question

state role of following in human digestive system (1) Digestive enzymes (2)HCL(3)Villi

Answer 1

(i)digestive enzymes-They speed up the chemical reactions and also speed up the break down of food into tiny droplets
(ii)HCL-It kills the bacteria present in bolus and activate all enzymes
and sorry don't know villi

Answer 2

1. Digestive enzymes helps in conversion of larger food molecules into simpler form by breaking down food molecules that allows the body to use it in the form of energy after performing cellular respiration....... there are different enzymes for different nutrients!!
2. Hcl in stomach helps in detoxifying the harmful substances
3. Microvilli in small intestine helps in the absorption of nutrients as it is surrounded by lymph and blood vessels..
Digestion is indeed a complex phenomenon!!