Digestion in Duodenum

Q.

Describe digestion of fat in the intestine.

Q.

What hormone controls digestion?

Q.

What does the presence of vegetable cells in stool indicate?

Q. Hepato-pancreatic duct opens into the duodenum and carries

1. bile only
2. pancreatic juice only
3. both bile and pancreatic juice
4. saliva

Q.

A person who is eating boiled potato, his food contains the component

1. DNA which can be digested by pancreatic DNAase
2. cellulose which is digested by cellulose
3. starch which is not digested
4. lactose which is not digested

Q. Secretin and cholecystokinin are digestive hormones secreted by .

1. oesophagus
2. ileum
3. duodenum
4. pylorus

Q.

What are the roles of secretin and CCK.

Q. Digestion is the breaking down of large food molecules into smaller ones. The main purpose of this is

1. Make the food soluble
2. Enable the digestive enzymes to be used up
3. Provide many different types of molecules for absorption
4. Make the passage of the food along the gut easier

Q.

Which hormone is responsible for the release of bile?

Q. Which of the following is a correct statement?
i) Liver is the largest gland in our digestive system.
ii) Pancreas is a heterocrine gland.
iii) Pepsinogen is activated by an alkali.
iv) Bile juice is produced by the gallbladder.

1. Both i and ii are correct
2. Both iii and iv are correct
3. Both i and iii are correct
4. Both ii and iv are correct

Q. Release of pancreatic juice is stimulated by

1. enterokinase
2. cholecystokinin
3. trypsinogen
4. gastrin

Q.

What is the site of fat digestion in humans? Name the enzyme that digests fat. Mention the end product of fat digestion

Q. The breakdown of biomolecules like dipeptides, maltose and lactose takes place majorly in __________.

1. villi
2. pancreas
3. duodenum
4. ileum

Q.

Where are the fats digested and what are the end products?

Q. Assertion- The food digested by the stomach is highly acidic, when it passes through the duodenum it becomes nearly neutral.
Reason- Brunner’s gland in the duodenum produces mucin which is alkaline.

1. Both the assertion and reason are true and the reason is the correct explanation of the assertion
2. Both the assertion and reason are false
3. The assertion is true but the reason is false
4. Both assertion and reason are true but the reason is not the correct explanation of the assertion

Q.

What is expelled out of a body as faeces through the anus?

Q. Cholecystokinin is secretion of:

1. Duodenum, that causes contraction of gall bladder
2. Globlet cells of ileum, stimulates secretion of succus entericus
3. Liver and controls secondary sex characters
4. Stomach that stimulates pancreas to release juice

Q.

Bile juice is stored in:

1. Liver

2. Pancreas

3. Gall bladder

4. Stomach

Q. Gastric juice contains

1. Pepsin, lipase and rennin
2. Trypsin, lipase and rennin
3. Trypsin, pepsin and rennin
4. Trypsin, pepsin and lipase

Q. In which part of the alimentary canal are Plicae circularis found?

1. Stomach
2. Small intestine
3. Large intestine
4. Oesophagus

Q.

The end products of fat digestion are _________, which release into the _________ system.

Q. Complete the following:
(iii) is the fat digesting enzyme.

Q. Digestion is the breaking down of large food molecules into smaller ones. The main purpose of this is

1. Make the food soluble
2. Enable the digestive enzymes to be used up
3. Provide molecules which can be easily absorbed
4. Make the passage of the food along the gut easier

Q. Release of which enzyme stimulates pancreatic juice secretion?

Q. Assertion :Pancreatic amylase digest starch to maltose. Reason: Pancreatic amylase breaks the peptide bond of protein.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Both Assertion and Reason are incorrect.

Q. The type of cells present in the gastric glands which secretes intrinsic factor?

1. Peptic cells
2. Parietal cells
3. Chief cells
4. Both A and B

Q. ENZYMES IN PANCREATIC JUICE

Q. Pancreatic amylase catalyses the digestion of

1. Carbohydrates to disaccharides
2. Lipids to diglycerides
3. Nucleic acids to nucleotides
4. Proteins and polypeptides to dipeptides

Q. In which part of the alimentary canal are Plicae circularis found?

1. Stomach
2. Small intestine
3. Large intestine
4. Oesophagus

Q. Chyme has

1. Undigested proteins
2. Partially digested fats
3. Partially digested proteins
4. Alkaline food