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.

Most digestion and absorption of food takes place in (a) Stomach (b) Caecum (c) Small intestine (d) Large intestine

Which of the following statements are the functions of a medullary ray in plants ? (i) Absorption (ii) Secondary growth (iii) Transmission of water and food (iv) Seat of origin or inter-fascicular cambium

Which of the following statement is/are incorrect about lymph ? (i) Lymph is colourful as it has haemoglobin but no RBC (ii) It contains specialised lymphocytes which are responsible for immunity of the body (iii) Lymph is an important carrier for nutrients and harmones (iv) Fats are absorbed through lymph in the lacteals present in the intestinal villi.

Which of the following statements is/are incorrect regarding the collecting duct? (i). It extends from the cortex to medulla. (ii). Large amount of water could be reabsorbed by it to produce concentrated urine. (iii). Small amount of urea diffuses into it from the medulla to keep up the osmolarity. (iv). it plays a role in maintaining pH and ionic balance of blood by the selective secretion of H^(+) and K^(+) ions.

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

Which of the following statements are correct? (i). Reabsorption of water occurs passively in the initial segment of nephron. (ii). Nitrogenous wastes are absorbed by passive transport. (iii). Conditional reabsorption of Na^(+) and water takes palce in DCT. (iv). DCT reabsorbs HCO_(3)^(-) (v). DCT is capable of selective secretion of H^(+),K^(+) and NH_(3) to maintain pH and Na^(+)-K^(+) balance in blood. (vi). Substance like glucose, amino acids, Na^(+) , etc,. it the filtrate are reabsorbed actively.