State the roll of the functions in digestive system (1) digestive enzymes (2) hydrochloric acid (3)villi
Answers
Answer:
Explanation:Our stomach have bunch of enzymes in our body which plays a very essential role in digestion there are many enzymes like pancreatic juices from pancreas , Bile juice from liver etc . Be more specific to get the answer for a particular enzyme.
Secondly the HCL (Hydro chloric acid ) is present in the stomach and it's have very low ph it have couple of reasons -
1) The low ph of HCL helps to kill the pathogens which might enter with food.
2) Also the low ph of HCL (1.8) activates the enzyme pepsinogen into pepsin which converts proteins into proteoses and peptones.
The innermost layer lining the lumen of the alimentary canal in the mucosa this layer forms irregular folds called (Rugae) in the stomach and small finger like foldings called villi in the small intestine these villi increases the surface area for the absorption.
Might this will gonna help you.
All the best ! Buddy
Answer:
(i) Digestive enzymes – Foods need to be broken into their small or simpler
molecules so that they can be absorbed into the bloodstream. However, the physical breakdown of food is not enough. Enzymes are hence needed for the chemical breakdown of food and speeding up the digestive process. The products of digestion can hence be small enough to be absorbed.
(ii) Hydrochloric acid – Hydro chloric acid helps to kill the germs which might have entered in to the system through food. It creates acidic medium for the pepsin to act on food to breakdown proteins.
(iii) Villi – Villi are finger like projections in the small intestine. They help to increase the surface area for absorption of the digested food. Villi are richly supplied with blood vessel which help to absorb digested food in to the blood stream.
Explanation: