The enzyme enterokinase helps in the conversion of
1. pepsinogen into pepsin
2. trypsinogen into trypsin
3. caseinogen into casein
4. proteins into polypeptides
Cholecystokinin and duocrinin are secreted by
1. adrenal cortex
2. thyroid gland
3. pancreas
4. intestine
Inhibition of gastric and stimulation of gastric, pancreatic and bile secretions are controlled by hormones
1. gastrin, secretin, enterokinin and cholecystokinin
2. enterogasterone, gastrin, pancreozymin and cholecystokinin
3. gastrin, enterogasterone, cholecystokinin and pancreozymin
4. secretin, enterogasterone, gastrin and enterokinin
Which one of the following is a matching pair of a substrate and its particular digestive enzyme?
1. Maltose - Maltase
2. Lactose - Renin
3. Starch - Steapsin
4. Casein - Chymotrypsin
Lactose is composed of
1. glucose + fructose
2. glucose + glucose
3. glucose + galactose
4. fructose + galactose
Brunner's glands occur in
1. sub-mucosa of duodenum
2. sub-mucosa of stomach
3. mucosa of oesophagus
4. mucosa of ileum
Duodenum has characteristic Brunner's glands which secret two hormones called
1. kinase, estrogen
2. secretin, cholecystokinin
3. prolactin, parathromone
4. estradion, progesterone
The enzyme that is not present in succus entericus is
(1) maltase
(2) nucleases
(3) nucleosidase
(4) lipase
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
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 |