Release of pancreatic juice is stimulated by
1. enterokinase
2. cholecystokinin
3. secretin
4. Both 2 and ;3
If pancreas is removed, the compound which remains undigested is
1. carbohydrates
2. fats
3. proteins
4. All of these
A certain person eats boiled potato; one of the food component in it is
1. lactose which is indigestible
2. starch which does not get digested
3. cellulose which is digested by intestinal cellulos
4. DNA which gets digested by pancreatic DNAase
Pancreas produces
1. three digestive enzymes and one hormone
2. three digestive enzymes and two hormones
3. two digestive enzymes and one hormone
4. three digestive enzymes and no hormone
Many of the pancreatic enzymes must be activated by trypsin before they can begin digesting food, but trypsin itself requires the activating effect of
(1) chymotrypsin
(2) carboxypeptidase
(3) phospholipase
(4) enterokinase
Which of the following glandular secretions involved in digestion would be most likely released initially as inactive precursors ?
(1) protein-digesting enzymes
(2) fat-solublizing bile salts
(3) acid-neutralising bicarbonate
(4) hormones such as gastrin
Which one of the following is the correct matching of the site of action on the given
substrate, the enzyme acting upon it and the end product?
1. Duodenum :Triglycerides→Trypsin→Monoglycerides
2. Small intestine :Starch→α-amylase→Disaccharide (maltose)
3. Small intestine :Proteins→Pepsin→Amino Acids
4. Stomach :Fats→ Lipase→Micelles
During digestion, before the action of lipase, fat is emulsified by:-
1. ergosterols
2. phospholipids
3. lipoproteins
4. digitonin
A child took sugar cane and sucked its juice. Regarding this which of the following match is correct ?
|
Substrate |
Enzyme |
Site of secretion of enzyme |
Products formed |
(1) |
Proteins |
Pepsin |
Duodenum |
Polypetides |
(2) |
Starch |
Amylase |
Salivary glands |
Glucose |
(3) |
Lipids |
Lipase |
Pancreas |
Fat globules |
(4) |
Sucrose |
Invertase |
Duodenum |
Glucose + Fructose |
Trypsinogen, chymotrypsinogen, procarboxypeptidase, amylase, lipase and nuclease enzymes are found in:
(1) Pancreatic juice
(2) Succus entericus / intestinal juice
(3) Gastric juice
(4) Bile and gastric juice