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Answer:
h) bolus
c) to absorb the starch or nutrients in the food while chewing it...
d) Pepsin breaks down proteins into smaller molecules of Amino acids..
e) it increases the surface area in the stomach for absorption..
g) Digestion of cellulose takes a longer time, because the enzymes are produced by the ruminant bacteria that live in the gut of the herbivore. Longer small intestine ensures that the food stays for a longer duration and proper digestion is possible.
f) The digestive role of the liver is to produce bile and export it to the duodenum. The gallbladder primarily stores, concentrates, and releases bile. The pancreas produces pancreatic juice, which contains digestive enzymes and bicarbonate ions, and delivers it to the duodenum.
a) The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria. The mucus covers the stomach wall with a protective coating.
Gastric mucus is a gel-mucous barrier secreted by epithelial cells and glandular cells in the stomach wall. It acts as part of a barrier that protects the stomach wall from the acid and digestive enzymes within the stomach lumen. ... Together, these components prevent the stomach from effectively digesting itself.
b) teeth and tongue helps in absorbing the nutrients in the food and converting it into simpler absorbable form for digestion..
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