Match the following and choose the correct combination from the options given:

Column-$I$	Column-$II$
$(A)$ Ptyalin	$(1)$ Lipids
$(B)$ Pepsin	$(2)$ Starch
$(C)$ Steapsin	$(3)$ $DNA$
$(D)$ Nuclease	$(4)$ Proteins

What does heterotrophic nutrition include?

Which of the following electrolytes is present in human saliva?

$A$ healthy person eats the following diet: $5 \, gm$ raw sugar,$4 \, gm$ albumin,$10 \, gm$ pure buffalo ghee adulterated with $2 \, gm$ vegetable ghee (hydrogenated vegetable oil),and $5 \, gm$ lignin. How many calories is he likely to get?

Match the following in Column $I$ with Column $II$ and select the correct option:

Column $I$ (Organ)	Column $II$ (Function)
$i$. Liver	$a$. Secretion of glucagon
$ii$. Stomach	$b$. Storage of glycogen
$iii$. Gall bladder	$c$. Secretion of $HCl$
$iv$. Pancreas	$d$. Storage of bile

Correct the following statements by deleting one of the incorrect entries:
$(a)$ Goblet cells located in the intestinal mucosal epithelium secrete mucus/chymotrypsin.
$(b)$ Fats are broken down into di- and monoglycerides with the help of amylase/lipase.
$(c)$ Gastric glands of stomach mucosa have oxyntic cells/chief cells which secrete $HCl$.
$(d)$ Saliva contains enzymes that digest starch/protein.