Absorption of Food

Q.

Which part of the digestive canal is involved in

(i) absorption of food

(ii) chewing of food

(iii) killing of bacteria

(iv) complete digestion of food

(v) formation of feces

Q. Which of the following is absorbed into the lacteal (lymph vessel) and then transported into the blood capillary?

1. Glucose
2. Amino acids
3. Fructose
4. Fatty acids

Q. Which of the following is the most important organ for the absorption of nutrients?

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

Q.

Differentiate between absorption and assimilation.

Q.

Will water help in digestion?

Q.

Where do most digestion and absorption occur?

Q. Which of the following is absorbed into the lacteal (lymph vessel) and then transported into the blood capillary?

1. Glucose
2. Amino acids
3. Fructose
4. Fatty acids

Q.

The major part of absorption is carried out by (i)______ through (ii)_______ of microvilli by different mechanisms, namely (iii)________ and (iv)______.

1. i. Jejunum ii. Enterocytes iii. Passive absorption iv. Active absorption
2. i. Ileum ii. Lacteals iii. Diffusion iv. Active absorption
3. i. Duodenum ii. Capillaries iii. Active absorption iv. Osmosis
4. i. Large intestine ii. Ceacum iii. Reverse Osmosis iv. Passive absorption

Q. Select the correct match of the digested products in humans with their absorption site and mechanism.

1. Cholesterol, maltose - Large intestine - Active absorption
2. Glycine, glucose - Small intestine - Active absorption
3. Fructose, $N{a}^{+}$ - Large intestine - Passive absorption
4. Glycerol, fatty acids - Duodenum - Move as chilomicrons

Q.

Absorption of glucose and amino acids is a simple process. It is mostly carried out by the villi of small Intestine; In reference to the process, choose the correct (option) path.

1. Villi $\to$Portal System $\to$ Blood $\to$ Body parts
2. Portal System $\to$ Blood $\to$ Body parts $\to$ Villi

3. Blood $\to$ Body parts $\to$ Villi $\to$ Portal System

4. Body parts $\to$ Villi $\to$ Portal System $\to$ Blood

Q. Select what is not true for intestinal villi among the following.

1. They possess microvilli
2. They increase the surface area
3. They are supplied with capillaries and the lacteal vessels
4. They only participate in digestion of fats

Q. Reagrding assertion and reason, select the right option:
Assertion: Absorption of digested food mainly occurs in the stomach.
Reason: Stomach produces the hormone gastrin and the intrinsic factor and it liquefies ingested food.

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

Q. Micelle formation is necessary for the intestinal absorption of:

1. Glycerol
2. Bile acids
3. Vitamin B${}_{12}$
4. Vitamin D

Q. The process by which the digested products pass through the internal mucosa of the digestive tract into the blood or lymph is called ___________

1. absorption
2. adsorption
3. assimilation
4. digestion