$(a)$ State two functions of bile juice.
$(b)$ Differentiate between the functions of enzymes pepsin and trypsin.
$(b)$ Differentiate between the functions of enzymes pepsin and trypsin.
(N/A) Functions of bile juice:
$(i)$ It emulsifies large fat globules into smaller ones,thereby increasing the surface area for enzyme action.
$(ii)$ It makes the acidic food coming from the stomach alkaline,which is essential for the activity of pancreatic enzymes.
$(b)$ Differences between pepsin and trypsin:
$1.$ Pepsin: It acts on proteins in an acidic medium in the stomach.
$2.$ Trypsin: It acts on proteins in an alkaline medium in the small intestine.
$(i)$ It emulsifies large fat globules into smaller ones,thereby increasing the surface area for enzyme action.
$(ii)$ It makes the acidic food coming from the stomach alkaline,which is essential for the activity of pancreatic enzymes.
$(b)$ Differences between pepsin and trypsin:
$1.$ Pepsin: It acts on proteins in an acidic medium in the stomach.
$2.$ Trypsin: It acts on proteins in an alkaline medium in the small intestine.
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