Home
Class 11
BIOLOGY
Which of the following statements is/are...

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

Text Solution

Verified by Experts

The correct Answer is:
B

In the mouth certain drugs are absorbed. In the large intestine, water, some minerals and drugs are absorbed.
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion (A) : Maximum absorption t akes place in the small intestine. Resaon (R) : Absorption of simple sugars, alcohol and medicine etc take place in small intestine.

Asseration (A) : Maximum absorption takes place in the small inte. Reason ("R") : Absorption of simple sugars , alcohol and medicines etc take place in small intestine.

Consider the following four statements and select the correct option stating which ones are true (T) and which ones are false (F). (i) The stomach has the lowest pH. (ii) The liver contains lipid emulsifier (iii) Large intestine secretes many enzymes. (iv) All proteases function in the lumen of small intestine.

Which of the following statemens is/are false about columnar epithelium ? (i) It is made of tall and slender cells (ii) Free surface may have microvilli (iii) They are found in stomach and intestine and help in secretion and absorption (iv) Cillated epithelium is mainly present in hollow structures like bronchioles and Fallopian tubes. (v) They have apical nuclei.

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

Consider the following statements each with one or two balnks. (i) The bile duct and the pancreatic duct open together into the duodenum as the (1) which is guarded by a sphincter called the (2) (ii) (3) is a proteolytic enzyme found in gastric juice of infants which hleps in the digestion of milk proteins. (iii) Fatty acids and glycerol being insoluble, cannot be absorbed into the blood. They are first incorporated into small droplets called (4) which move into the intestinal mucose. They are re-formed into very small protein coated fat globules called the (5) which are transported into the lymph vessels (lacteals ) in the villi. Which of the folllowing options gives the correct fill ups for the respective blanks in the above statements?

Which of the following sttements regarding small intesitine are incorrect? (i) Throughout the small intestine, there are crypts of lieberkuhn at the base of the villi. (ii) In douodenum, there are, in addition, small rounded peptic glands. (iii) The small intestine is strongly self-rotective, by means of a copious production of mucus and a mechanism of the rapid replacement of cells damaged by contact with food and digestive juices. (iv) Each villus is richly supplied with blood capillaries only

Assertion: Water and electrolytes are almost fully absorbed in the large intestine. Reason: In large intestine, haustral contraction (slow semgmenting movements) roll the forming faeces over and over, causing absorption of water and electrolytes.

Assertion : Products of digestion are absorbed in the large intestine. Reason: The mucosal lining of large intestine forms finger-like foldings called villi which aid in absorption.