Assimilation is a process by which the digested food is absorbed by the body cells become an integral component of their living protoplasm and is used for energy, growth and repair. For example, amino acids are assimilated by the formation of proteins that help in building body muscles, glucose is oxidised in the cells for the production of energy, etc.

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The main function of intestinal villi is –

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Important Questions on Digestion and Absorption

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

Fructose is absorbed into the blood through mucosa cells of intestine by the process called ----------------------.

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

Given below are two statements:
Statement I: Fatty acids and glycerols cannot be absorbed into the blood.
Statement II: Specialized lymphatic capillaries called lacteals carry chylomicrons into lymphatic vessels and ultimately into the blood.
In light of the above statements, choose the most appropriate answer from the options given below:

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

Intrinsic factor is essential for the absorption of vitamin:

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

Vitamin- B₁₂ is absorbed primarily in the

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

Read the following four statements (A-D):
A. The small intestine is the principal organ for the absorption of nutrients.
B. In constipation, the faeces are retained within the rectum as the bowel movements occur irregularly.
C. The gross calorific value of fat is 4.1 Kcal/g.
D. The innermost layer lining the lumen of the alimentary canal is the serosa.
How many of the above statements are wrong?

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

Which of the following is absorbed in the stomach?

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

The absorption of glycerol, fatty acids, and monoglycerides takes place by the:

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

Nutrients absorbed by the blood capillaries of intestinal villi first goes into?

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

The main function of lacteals in the human small intestine is the absorption of

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

Which of the following statement/s is/are incorrect?

i. Absorption of simple sugar, alcohol, some water and medicines takes place in the stomach.

ii. Maximum of total water ingested is absorbed in the small intestine.

iii. The small intestine is the major site of digestion and absorption of food.

iv. Fatty acid and glycerol are absorbed by blood capillaries directly.

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

During sodium-dependent glucose transport, the

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

The daily dietary requirement of a moderately active adult individual is approximately:

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

Which set is correct?

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

A vitamin that is necessary for normal functioning of the liver, clotting of blood, and preventing haemorrhage is

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

Which of the following statement/s is/are incorrect?

i. Absorption of simple sugar, alcohol, some water, and medicines takes place in the stomach.

ii. Maximum of total water ingested is absorbed in the small intestine.

iii. The small intestine is the major site of digestion and absorption of food.

iv. Fatty acid and glycerol are absorbed by blood capillaries directly

MEDIUM

Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

Alcohol is present in which of the following?

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

A person deficient in the rhodopsin should be advised to take more of

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

Define assimilation.

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Biology>Human Physiology>Digestion and Absorption>Absorption and Assimilation of Food

Which one of the following statement is true regarding digestion and absorption of food in humans?