22. Match Column I with Column II. (There can be more than one match for items in Column I)Column I Column II A. Intestinal glands (i) PepsinogenB. Proenzyme (ii) StercobilinogenC. Carbohydrases (iii) Vitamin CD. Bilirubin (iv) Vitamin PE. Active transport (v) AmylaseF. Simple diffusion (vi) Maltase(vii) Glucose(viii) Brunner’s gland(ix) Stercobilin(x) Crypts of Lieberkuhn(xi) Prorennin(xii) Galactose
MTBIOLOGY TODAY|NOVEMBER ‘1513Passage Based Questions23.(A)Complete the given passage with appropriate words or phrases.Bile is secreted by the (i) . Bile enters (ii) that further empty into small (iii) canals walled by (iv) epithelium. These canals pour bile into (v) walled by (vi) epithelium. The bile is stored in the (vii). About (viii) mL of bile is secreted in a day. Bile salts help in the digestion of (ix) in the (x) by bringing about their (xi) .(B) Read the given passage and correct the errors, wherever present.The exocrine part of pancreas consists of groups of islets of Langerhans. They are most numerous in the head of the pancreas. Each islet of Langerhans consists of alpha cells (a-cells), beta cells (b-cells) and delta cells (δ cells). Alpha cells produce insulin hormone which converts glycogen into glucose in the small intestine. Beta cells produce glucagon hormone which converts glucose into glycogen in the duodenum and jejunum. Delta cells secrete secretin hormone which stimulates the secretion of glucagon and insulin.Assertion & ReasonIn each of the following questions, a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it. Of the statements, mark the correct answer as :(a) if both A and R are true and R is the correct explanation of A(b) if both A and R are true but R is not the correct explanation of A(c) if A is true but R is false (d) if both A and R are false.24. Assertion : The chylomicrons released from the epithelial cells of small intestine pass into lacteals in the intestinal villi rather than into the blood capillaries.Reason :The chylomicrons cannot enter the blood capillaries because the basement membrane at the outer surface of the capillary provides a barrier to the diffusion of large chylomicrons.25. Assertion : Trypsinogen is activated by enterokinase into active trypsin which in turn activates other enzymes in the pancreatic juice.Reason :The pancreatic juice contains inactive enzymes which are activated by intestinal juice.26. 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.27. Assertion : Filiform papillae are the smallest and the most numerous papillae found mainly near the centre and most of the upper surface of tongue.Reason :Filliform papillae contain tactile receptors and taste buds.
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