Tag: role of large intestine in digestion

Questions Related to role of large intestine in digestion

The large intestine is ........ than small intestine.

biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

  1. Wider and taller

  2. Fatter and shorter

  3. Wider and fatter

  4. Wider and shorter

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Correct Option: D
Explanation:

The small intestine in adults is a long and narrow tube about 7 meters (23 feet) long. The large intestine is so called because it is wide in diameter. However, it is shorter than the small intestine, only about 1.5 meters (5 feet) long. 

Therefore, the correct answer is option D.

Large intestine  is about .......... in length.

biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

  1. 1 metre

  2. 1.5 metre

  3. 2.5 metre

  4. 3.5 metre

Show answer
Correct Option: B
Explanation:

The small intestine in adults is a long and narrow tube about 7 meters (23 feet) long. The large intestine is so called because it is wide in diameter. However, it is shorter than the small intestine - only about 1.5 meters (5 feet) long. 

Therefore, the correct answer is option B.

The digestive system processes food into usable and unusable materials. The usable materials are sent to the body's cells as food and unusable material goes into the

biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

  1. Pancreas to await disposal

  2. Right ventricle to await disposal

  3. Large intestine to await disposal

  4. Small intestine to await disposal

Show answer
Correct Option: C
Explanation:

The process in which the complex and insoluble contents of food are converted into simpler and soluble substances, suitable for absorption and assimilation is called digestion. The food is digested by the digestive system with the help of digestive enzymes.  The usable materials are absorbed by the small intestine and the unusable food is passed on to the large intestine where the water is absorbed and moves to the anus for removal. Hence, the digestive system processes food into usable and unusable materials. The usable materials are sent to the body's cells as food and unusable material goes into the large intestine to await disposal.

So, the correct option is 'Large intestine to await disposal'.

Large intestine has ______

biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

  1. Large lumen

  2. Large length

  3. Large Diameter

  4. A and C

Show answer
Correct Option: D
Explanation:

Food is digested in three steps i.e mouth, stomach and small intestine. The undigested food is passed through large intestine. Large intestine larger diameter as compared to small intestine but is smaller in length.

Salts and water is absorbed in ____ 

biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

  1. Blood

  2. Large Intestine

  3. Both A and B

  4. Insufficient Data

Show answer
Correct Option: B
Explanation:

Food is digested in small intestine. No digestion takes place in large intestine. Salt and water is absorbed by the large intestine to maintain Osmo regulation.

I. Assertion- Large intestine absorbs salts and water.
II. Reason-  Villi present is large intestine.

biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

  1. I and II are true, II is not correct explanation to I

  2. I and II both are false

  3. I is false II is true

  4. I and II both are true, II is correct explanation to I

Show answer
Correct Option: D
Explanation:

Digestion ends in small intestine. Waste products are excreted from our body through large intestine. Excess water and salts are absorbed from intestine through muscular finger like projections called Villi.

Water is largely absorbed in

biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

  1. Stomach

  2. Oesophagus

  3. Small intestine

  4. Colon (large intestine)

Show answer
Correct Option: D
Explanation:
The colon is part of the large intestine, the last part of the digestive system. Its function is to absorb water and then expel the useless waste left from the body. The colon consists of four parts: descending colon, ascending colon, transverse colon and sigmoid colon. 
The large intestine also helps in absorption of vitamins made by bacteria that normally live in the large intestine. These are friendly bacteria called as commensal bacteria. 

Thus, the correct answer is option D.

In which of the following, putrefying bacteria is present?

biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

  1. Intestine

  2. Colon

  3. Stomach

  4. Liver

Show answer
Correct Option: B
Explanation:

Putrefaction is the decomposition of proteins caused due to bacterial or fungal decomposition of organic matter. The bacteria, yeast and other organisms in the fermented food allow colon to produce good bacteria. The fermented foods increase B vitamins such as riboflavin, thiamin and niacin. The activated form of folic acid is increased, which helps in cardiovascular and cancer risks. Choline is increased, which breaks down fat in the body and liver and helps with constipation. In addition, fermentation increases glutathione, an anti aging amino acid, and enzymes needed for digestion and detoxification.

The main function of the colon (large intestine) of mammals
is to

biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

  1. Temporarily store of excretory products

  2. Absorb water from undigested food

  3. Absorb digested food

  4. Digest cellulose

  5. Produce enzymes used in other parts of the alimentary

    canal

Show answer
Correct Option: B
Explanation:

The main function of the colon is absorption of much of the water from undigested food and leaving the solid material as faeces.

Haemorrhoids are ______________.

biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

  1. Small pouches of colon

  2. Enlarged rectal veins

  3. Outgrowths of anal canal

  4. Longitudinal folds of rectum

Show answer
Correct Option: B