(a) What is the role of HCl in our stomach ? (b) What is emulsification of fats ? (c) Which protein digesting enzyme is present in pancreatic juice ? -Biology

(a) What is the role of HCl in our stomach ? (b) What is emulsification of fats ? (c) Which protein digesting enzyme is present in pancreatic juice ? -Biology
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Answer :

(a)(i) It sterilises food by killing pathogens and other microbes. (ii) It has a pH of 2, which is perfect for entyaus such as pepsin to break down proteins as effectively as possible. (iii) Helps emulsify food (digestion of protein and stimulates the pancreas to produce digestive enzymes and bile) and protects against harmful ‘ bacteria (b) Breakdown of large gloubule fats into smaller fats droplets is known as emulsification. (c) Trypsin is the enzyme secreted by the pancreas which aids in digestion of proteins.
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The milk protein in the stomach in an adult is digested by (A) Pepsin (B) Rennin (C) HCl (D) Chymotrypsinogen

Description : The milk protein in the stomach in an adult is digested by (A) Pepsin (B) Rennin (C) HCl (D) Chymotrypsinogen

Last Answer : Answer : A

The Instrinisic Factor (HCl and mucoproteins) present in the gastric juice help in the absorption of (A) Vitamin B2 (B) Tocopherols (C) Folic acid (D) Vitmain B12

Description : The Instrinisic Factor (HCl and mucoproteins) present in the gastric juice help in the absorption of (A) Vitamin B2 (B) Tocopherols (C) Folic acid (D) Vitmain B12

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Enzyme responsible for the digestion of starch in food of main is Present in (e) Salivary and gastric secretion. (b) Salivary and pancreatic secretion (c) Gastric and pancreatic secretion (d) Gastric and duodenal secretion

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What role does enzyme pepsin play? (1) It converts fats into acids (2) If converts fats into glycerol (3) It converts proteins into peptones (4) It converts starch into sugar

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Last Answer : (3) It converts proteins into peptones Explanation: Pepsin is an endopeptidase that breaks down proteins into peptone and polypeptides. If is produced in the stomach and is one of the main digestive enzymes.

Which of the following statements is not correct? (a) Oxyntic cells are present in the mucosa of stomach and secrete HCl. (b) Acini are present in the pancreas and secrete carboxypeptidase. (c) Brunner’s glands are present in the submucosa of stomach and secrete pepsinogen. (d) Goblet cells are present in the mucosa of intestine and secrete mucus

Description : Which of the following statements is not correct? (a) Oxyntic cells are present in the mucosa of stomach and secrete HCl. (b) Acini are present in the pancreas and secrete carboxypeptidase. (c ... and secrete pepsinogen. (d) Goblet cells are present in the mucosa of intestine and secrete mucus

Last Answer : (c) Brunner’s glands are present in the submucosa of stomach and secrete pepsinogen.

Lipose present in the stomach cannot hydrolyze fats owing to (A) Alkalinity (B) Acidity (C) High acidity (D) Neutrality

Description : Lipose present in the stomach cannot hydrolyze fats owing to (A) Alkalinity (B) Acidity (C) High acidity (D) Neutrality

Last Answer : Answer : C

What substances are contained in pancreatic juice ? What are their functions ? -Science

Description : What substances are contained in pancreatic juice ? What are their functions ? -Science

Last Answer : Pancreatic juice contains digestive enzymes ? Pancreatic Amylase, trypsin and lipase. Functions: (a) Pancreatic amylase: The enzyme amylase breaks down the starch. (b) Trypsin: trypsin digests the proteins. (c) Lipase: Lipase breaks down the emulsified fats

What is the pH of pancreatic juice ?

Description : What is the pH of pancreatic juice ?

Last Answer : The pH value of pancreatic juice is 8.1 .

Where does bile juice combine with pancreatic juice ?

Last Answer : Bile juice is combined with pancreatic juice to form diodenam.

Pancreatic juice is

Description : Pancreatic juice is

Last Answer : Pancreatic juice is A. Alkaline in nature B. Acidic in nature C. Neutral in nature D. Both acidic and alkaline in nature

Pancreatic juice is released into -

Description : Pancreatic juice is released into -

Last Answer : Pancreatic juice is released into - A. Duodenum B. Ileum C. Stomach D. Jejunum

In pancreas, pancreatic juice and hormane secreted by -

Description : In pancreas, pancreatic juice and hormane secreted by -

Last Answer : In pancreas, pancreatic juice and hormane secreted by - A. Islets of langerhans B. Cells of Acini ... langerhans and cells of Acini D. None of these

In pancreas, pancreatic juice and hormones are secreted by

Description : In pancreas, pancreatic juice and hormones are secreted by

Last Answer : In pancreas, pancreatic juice and hormones are secreted by A. Same cells B. Different Cells C. Same cells at different times D. None of these

An extracellular fluid having a higher concentration of chloride than serum is (A) Bile (B) Sweat (C) CSF (D) Pancreatic juice

Description : An extracellular fluid having a higher concentration of chloride than serum is (A) Bile (B) Sweat (C) CSF (D) Pancreatic juice

Last Answer : Answer : C

The zymogen from trypsinogen of pancreatic juice is converted to active trypsin by (A) Peisin (B) Enterocrinin (C) Enterokinase (D) Rennin

Description : The zymogen from trypsinogen of pancreatic juice is converted to active trypsin by (A) Peisin (B) Enterocrinin (C) Enterokinase (D) Rennin

Last Answer : Answer : C

Pancreatic juice contains all of the following except (A) Trypsinogen (B) Lipase (C) Cholecystokinin (D) Chymnotrypsinogen

Description : Pancreatic juice contains all of the following except (A) Trypsinogen (B) Lipase (C) Cholecystokinin (D) Chymnotrypsinogen

Last Answer : Answer : C

All of the following statements about cholecystokinin pancreozymin are true except (A) It is secreted by mucosa of small intestine (B) It stimulates secretion of pancreatic juice rich in enzymes (C) It stimulates contraction of gall bladder (D) It inhibits gastric motility

Description : All of the following statements about cholecystokinin pancreozymin are true except (A) It is secreted by mucosa of small intestine (B) It stimulates secretion of pancreatic juice rich in enzymes (C) It stimulates contraction of gall bladder (D) It inhibits gastric motility

Last Answer : Answer : D

Secretin causes all of the following except (A) Secretion of pancreatic juice (B) Secretion of bile (C) Inhibition of gastric secretion (D) Stimulation of intestinal motility

Description : Secretin causes all of the following except (A) Secretion of pancreatic juice (B) Secretion of bile (C) Inhibition of gastric secretion (D) Stimulation of intestinal motility

Last Answer : Answer : D

Pancreatic juice contains the precursors of all of the following except (A) Trypsin (B) Chymotrypsin (C) Carboxypeptidase (D) Aminopeptidase

Description : Pancreatic juice contains the precursors of all of the following except (A) Trypsin (B) Chymotrypsin (C) Carboxypeptidase (D) Aminopeptidase

Last Answer : Answer : D

Besides the pancreatic juice in the intestine there is the releasing of the enteric juice that contains digestive enzymes too. What are these enzymes and which type of molecule do each of these enzymes break?

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Last Answer : The enteric juice is secreted by the small intestine mucosa. The enzymes of the enteric juice and their respective functions are described as follows: Enterokinase: enzyme that activates ... Enzymes that break nucleotides into its components (nitrogen-containing bases, phosphates and pentoses).

How does the pancreatic juice participate in the digestion of proteins? What are the involved enzymes?

Description : How does the pancreatic juice participate in the digestion of proteins? What are the involved enzymes?

Last Answer : The pancreas secretes trypsinogen that, undergoing action of the enzyme enterokinase secreted by the duodenum, is transformed into trypsin. Trypsin in its turn catalyzes the activation of pancreatic ... activated by trypsin) helped by the enzyme aminopeptidase made in the intestinal mucous membrane.

Release of pancreatic juice is stimulated by (a) enterokinase (b) cholecystokinin (c) trypsinogen (d) secretin

Description : Release of pancreatic juice is stimulated by (a) enterokinase (b) cholecystokinin (c) trypsinogen (d) secretin

Last Answer : d) secretin.

Secretin stimulates production of (a) saliva (b) gastric juice (c) bile (d) pancreatic juice.

Description : Secretin stimulates production of (a) saliva (b) gastric juice (c) bile (d) pancreatic juice.

Last Answer : (d) pancreatic juice.

Pancreatic juice and hormones of pancreas are produced by (a) same cells (b) same cells at different times (c) statment is wrong (d) different cells.

Description : Pancreatic juice and hormones of pancreas are produced by (a) same cells (b) same cells at different times (c) statment is wrong (d) different cells.

Last Answer : (d) different cells.

One of the constituents of the pancreatic juice which is poured into the duodenum in humans is (a) trypsinogen (b) chymotrypsin (c) trypsin (d) enterokinase.

Description : One of the constituents of the pancreatic juice which is poured into the duodenum in humans is (a) trypsinogen (b) chymotrypsin (c) trypsin (d) enterokinase.

Last Answer : (a) trypsinogen