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NEET • BIOLOGY • DIGESTION AND ABSORPTION
Digestion and absorption practice · Mixed difficulty
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241
Medium
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Analyzing
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Select the odd one w.r.t. location in mucosa of alimentary canal.
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Correct option: D
Brunner's gland
Option D (Brunner's gland) is the odd one out because it is located in the submucosa, while the others are found in the mucosa of the alimentary canal.
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Medium
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Application
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Which of the following correctly represents the physiological value of following food which has 50 gm of carbohydrate, 30 gm of fat and 40 gm of protein
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Correct option: A
630 kcal
Option A (630 kcal) is correct because it is calculated by multiplying the grams of each macronutrient by its caloric value and summing the results.
243
Easy
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Remembering
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Hydrochloic acid (HCl) is secreted by which of the following cells of stomach?
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Correct option: B
Parietal cells (oxyntic cells)
The correct answer is B (Parietal cells (oxyntic cells)) because parietal cells, also known as oxyntic cells, are responsible for secreting hydrochloric acid (HCl) in the stomach.
244
Hard
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Understanding
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What is common between pepsin, maltase and amylase?
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Correct option: C
These are proteinaceous in nature and acts at same temperature
Option C (These are proteinaceous in nature and acts at same temperature) is correct because pepsin, maltase, and amylase are all enzymes (proteins) and function optimally at body temperature.
245
Medium
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Understanding
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Which combination is not correctly matched?
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Correct option: C
Vitamin- – Beri-beri
Option C (Vitamin- – Beri-beri) is correct because Beri-beri is caused by a deficiency of Vitamin B1 (Thiamine), not Vitamin B2 (Riboflavin).
246
Medium
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Analyzing
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Study thoroughly the following statement and identify which of the following is/are correct and incorrect? I. Bile salt present in bile is responsible to emulsify the fats in small intestine II. Bicarbonates of sodium, potassium, glycocholate and taurocholate of sodium are bile salts III. The pH of hepatic bile is 8.6, while pH of gall bladder is 7.6 or 7.5 IV. The flow of bile from liver takes place through hepatic duct, common bile duct, -hepatopancreatic ampulla and finally to the first part of small intestine V. Gall bladder in rat and horse does not store bile Choose the correct option
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Correct option: C
Statement II and V are incorrect while, I, III and IV are correct
Option A (I, III and IV are incorrect, while II and V are correct) is correct because statements I, III, and IV contain inaccuracies regarding bile salt function, pH, and bile flow, respectively.
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Medium
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Understanding
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Which is the correct chronological order for food processing in human beings?
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Correct option: A
Ingestion of food → Digestion → Absorption → Assimilation → Egestion (Undigested)
Option A (Ingestion of food → Digestion → Absorption → Assimilation → Egestion (Undigested)) is correct because it represents the correct sequence of food processing.
248
Medium
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Remembering
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In horses, rabbits, hares, the cellulose gets digested in the
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Correct option: A
Caecum
Option A (Caecum) is correct because in horses, rabbits, and hares, the caecum is a large pouch that contains bacteria which help in the digestion of cellulose.
249
Hard
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Remembering
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By which process, absorption of galactose, electrolytes, like and some amino acids takes place?
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Correct option: A
Active process
Option A is correct because galactose, electrolytes, and some amino acids are absorbed through active transport, requiring energy.
250
Easy
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Remembering
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What type of teeths are absent in rabbit?
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Correct option: C
Canines
Option C (Canines) is correct because rabbits lack canine teeth, possessing incisors, premolars, and molars.
251
Easy
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Understanding
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Statement-I: Bile helps in emulsification of fats.
Statement-II: Emulsification helps in break down of large fat molecules into small molecules, so that they can be digested by lipase.
Statement-II: Emulsification helps in break down of large fat molecules into small molecules, so that they can be digested by lipase.
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Correct option: D
Both statement I and statement II are correct
Option D (Both statement I and statement II are correct) is correct because bile emulsifies fats, breaking them into smaller molecules for lipase digestion.
252
Easy
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Remembering
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Which of the following are required in minimum amount by human?
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Correct option: B
Iron, iodine, manganese, copper, zinc, fluorine
Option B (Iron, iodine, manganese, copper, zinc, fluorine) is correct because these are trace elements required in very small amounts by the human body.
253
Easy
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Understanding
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What are the various type of secretions that are mixed with the food to facilitate the digestion of food in the intestine?
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Correct option: B
Bile, pancreatic juices and intestinal juices
Option B (Bile, pancreatic juices and intestinal juices) is correct because these secretions contain the necessary enzymes and substances for the complete digestion of food in the small intestine.
254
Easy
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Understanding
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When breast feeding is replaced by less nutritive food low in proteins and calories; the infants below the age of one year are likely to suffer from
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Correct option: A
Marasmus
Option A (Marasmus) is correct because marasmus is a severe form of malnutrition characterized by energy deficiency, leading to wasting of muscle and tissues, often occurring when breast feeding is replaced by inadequate food.
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Hard
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Understanding
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Assertion: Deficiency of vitamin D causes bone weakness.
Reason: Cholecalciferol is synthesised in skin by the action of sunlight.
Reason: Cholecalciferol is synthesised in skin by the action of sunlight.
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Correct option: B
If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion
Option B (If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion) is correct because both statements are true, but the synthesis of cholecalciferol doesn't directly explain why vitamin D deficiency causes bone weakness.
Revision notes and key takeaways
Review DIGESTION AND ABSORPTION in your textbook or class notes, then use this set to check your understanding.
Showing 241-255 of 255 questions