Digestion & Absorption Test

Question 1
4 / -1

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

A
Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na⁺

B
Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries

C
About 60% of starch is hydrolysed by salivary amylase in our mouth

D
Oxyntic cells in our stomach secrete the proenzyme pepsinogen

Question 2
4 / -1

Read the following statements and select the correct option.
Statement 1 : The human small intestine is the longest portion in the alimentary canal.
Statement 2 : Absorption of digested food requires a very large surface area.

A
Both statement 1 and 2 are correct.

B
Statement 1 is correct but statement 2 is incorrect.

C
Statement 1 is incorrect but statement 2 is correct.

D
Both statements 1 and 2 are incorrect.

Question 3
4 / -1

Carrier ions like Na⁺ facilitate the absorption of substances like

A
Amino acids and glucose

B
Glucose and fatty acids

C
Fatty acids and glycerol

D
Fructose and some amino acids

Question 4
4 / -1

Which of the following statements is false?

A
The stomach stores the food for 4-5 hours.

B
Gastric gland never secretes even a small amount of lipase.

C
Rennin, a proteolytic enzyme is found in gastric juice of infants.

D
All of these.

Question 5
4 / -1

Which of the following statements is false?

A
The breakdown of most of biomacromolecules occurs in duodenum

B
Simple substances (digested foods) are absorbed in the jejunum and ileum

C
Significant digestive activity occurs in large intestine

D
Undigested and unabsorbed substances are passed on to the large intestine

Question 6
4 / -1

Which of the following statements is/are incorrect?
(i) Absorption of simple sugar, alcohol, some water and medicines takes place in stomach.
(ii) Maximum water absorption occurs in large intestine.
(iii) Small intestine is the major site of digestion and absorption of food.
(iv) Fatty acid and glycerol are absorbed by lacteals.
(v) Nothing is absorbed in mouth and large intestine.

A
(i), (iv) and (v)

B
(v) only

C
(iv) only

D
(ii) and (iii)

Question 7
4 / -1

Which of the following statements are incorrect about chylomicrons?
(i) Chylomicrons are produced in the epithelial cells of the small intestine.
(ii) It contains triglycerides, cholesterol, and phospholipids.
(iii) They are protein-coated small vesicles.
(iv) Chylomicrons are released from the epithelial cell into lacteals.

A
(i) and (iv)

B
(ii) and (iii)

C
(i), (ii), (iii) and (iv)

D
None of these

Question 8
4 / -1

The backflow of faecal matter from the large intestine into the small intestine is prevented by the presence of

A
Epiglottis

B
Sphincter of Oddi

C
ileo-caecal valve

D
Gastro-esophageal sphincter

Question 9
4 / -1

Read the following four statements (i) - (iv) with certain mistakes in two of them.
(i) Fructose is generally absorbed by simple diffusion.
(ii) The digestive wastes, solidified into coherent faeces in the rectum initiate an endocrine action causing an urge or desire for its removal.
(iii) The food mixes thoroughly with the acidic gastric juice of the stomach by the churning movements of its muscular wall and is called the chyme.
(iv) The secretions of the brush border cells of the mucosa along with the secretions of the goblet cells constitute the succus entericus.
Which of the above two statements have mistakes?

A
(i) and (ii)

B
(ii) and (iii)

C
(iii) and (iv)

D
(i) and (iii)

Question 10
4 / -1

Minerals are transported through _________ along the _________ stream of water.

A
xylem, descending

B
phloem, descending

C
xylem, ascending

D
phloem, ascending

Submit Test

Digestion & Abs...

Question 1

Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na+

Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries

About 60% of starch is hydrolysed by salivary amylase in our mouth

Oxyntic cells in our stomach secrete the proenzyme pepsinogen

Question 2

Both statement 1 and 2 are correct.

Statement 1 is correct but statement 2 is incorrect.

Statement 1 is incorrect but statement 2 is correct.

Both statements 1 and 2 are incorrect.

Question 3

Amino acids and glucose

Glucose and fatty acids

Fatty acids and glycerol

Fructose and some amino acids

Question 4

The stomach stores the food for 4-5 hours.

Gastric gland never secretes even a small amount of lipase.

Rennin, a proteolytic enzyme is found in gastric juice of infants.

All of these.

Question 5

The breakdown of most of biomacromolecules occurs in duodenum

Simple substances (digested foods) are absorbed in the jejunum and ileum

Significant digestive activity occurs in large intestine

Undigested and unabsorbed substances are passed on to the large intestine

Question 6

(i), (iv) and (v)

(v) only

(iv) only

(ii) and (iii)

Question 7

(i) and (iv)

(ii) and (iii)

(i), (ii), (iii) and (iv)

None of these

Question 8

Epiglottis

Sphincter of Oddi

ileo-caecal valve

Gastro-esophageal sphincter

Question 9

(i) and (ii)

(ii) and (iii)

(iii) and (iv)

(i) and (iii)

Question 10

xylem, descending

phloem, descending

xylem, ascending

phloem, ascending

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Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na⁺