Digestion And Absorption

Answer (d) 1000 ml

Answer (a) Maltose to glucose at pH greater than 7

Answer (c) Degradation product of haemoglobin

Answer (a) Chyle

Answer (d) Protein

Answer (b) Acidic medium in the stomach

Answer (a) 2

Answer (b) Enzymes

Proteolytic enzymes are the protein digesting enzymes. Erepsin is an enzyme that digests peptones into amino acids. It is grouped under exopeptidases. It is produced by the intestinal glands in the ileum and is found in the intestinal juices. It is also produced by the pancreas. Tiypsin is present in the pancreatic juice and converts proteins into large peptides. Pepsin is present in the gastric juice and converts proteins into proteoses, peptones and large peptides.

Oxyntic cells (= parietal cells) are large and are most numerous on the side walls of the gastric glands. They secrete hydrochloric acid and Castle�s intrinsic factor. Hydrochloric acid serves many functions like it kills harmful bacteria; it provides acidic medium in the stomach for gastric digestion; it changes pepsinogen into pepsin and prorennin into rennin; softens the food and make it readily available for enzyme action; it stops the action of salivary enzyme.

Answer (c) Man

Answer (b) Amylase

Answer (a) Pepsin and rennin