Below are the NEET MCQ questions on Class 11 Biology Chapter “Digestion and Absorption” based on the NCERT textbook. Solve the below free NEET mock test for a better understanding of the various topics. 100+ important MCQs (multiple choice questions) are given in this NEET question bank.
“Digestion and Absorption” is the 16th chapter in the unit “Human Physiology” of class XI or class 11th Biology NCERT. Do note that NEET (which is conducted by NTA) is based on NCERT textbooks so they are a must-have. You can also download PDFs of NCERT textbooks.
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- In the human body, which of the following organs is the blood bank?
(a) Heart
(b) Lungs
(c) Spleen
(d) Liver
- Which of the following takes up fatty acid and glycerol first from the alimentary canal?
(a) Villi
(b) Blood capillaries
(c) Hepatic portal vein
(d) Lymph vessels
(d) Lymph vessels
- Due to the absence of which one of the following is meals rich in fat not digested in the intestine?
(a) Pepsin
(b) Enterokinase
(c) Insulin
(d) Steapsin
(d) Steapsin
- In the human body, why is the intestine 29 feet long?
(a) it provides more area for food storage
(b) bacteria contained in food may gradually be killed
(c) more length increases food digestion and absorption
(d) None of these
(c) more length increases food digestion and absorption
- Where are crypts of lieberkuhn present?
(a) intestine
(b) stomach
(c) oesophagus
(d) all of these
(a) intestine
- In mammals, which structure prevents the entry of goods into the windpipe during swallowing?
(a) larynx
(b) pharynx
(c) glottic
(d) epiglottis
(d) epiglottis
- What is the hardest substance in the vertebrate body?
(a) enamel
(b) keratin
(c) dentine
(d) chondrin
(a) enamel
- Which epithelium forms the inner lining of the stomach wall?
(a) cuboidal
(b) ciliated
(c) squamous
(d) columnar
(d) columnar
- Which of the following is not a proteolytic enzyme?
(a) Chymotrypsin
(b) Rennin
(c) Steapsin
(d) All of these
(c) Steapsin
- The small intestine’s posterior part has more and larger intestinal villi than its anterior part because?
(a) digestion is faster in the posterior part
(b) blood supply is poorer in the anterior part
(c) blood supply is poorer in the posterior part
(d) there is more digested food in the posterior part
(d) there is more digested food in the posterior part
- Which part of the alimentary canal is meant for reabsorption of maximum H2O?
(a) Small intestine
(b) large intestine
(c) rectum
(d) colon
(a) Small intestine
- The end products of carbohydrate digestion are?
(a) Glucose, galactose, fructose
(b) Sucrose, galactose, maltose
(c) Galactose, glucose, maltose
(d) None of these
(a) Glucose, galactose, fructose
- Which of the following produces trypsinogen?
(a) Liver
(b) Duodenum
(c) Stomach
(d) Pancreas
(d) Pancreas
- What secretes the enzyme trypsin?
(a) Duodenum
(b) Liver
(c) Pancreas
(d) Stomach
(c) Pancreas
- What is destroyed by lysozyme, which is present in perspiration, saliva and tears?
(a) most virus-infected cells
(b) certain fungi
(c) certain types of bacteria
(d) all viruses
(c) certain types of bacteria
- Water can be consumed by mammals and also obtained from what?
(a) Breakdown of glycogen into glucose
(b) Secretion of saliva
(c) Oxidation of glucose
(d) Conversion of oxyhaemoglobin into haemoglobin
(c) Oxidation of glucose
- Why does a piece of bread taste sweet when it is chewed?
(a) The sugar contents are drawn out
(b) Saliva converts starch into maltose
(c) It does not taste sweet
(d) The taste buds are stimulated by chewing
(b) Saliva converts starch into maltose
- Which of the following is the reason why herbivorous animals can digest cellulose?
(a) their molar and premolar teeth can crush and grind the food
(b) bacteria present in their caecum help in the digestion of cellulose
(c) gastric juice has a digestive enzyme for cellulose digestion
(d) alimentary canal is very long.
(b) bacteria present in their caecum help in the digestion of cellulose
- Where is the centre of hunger or the centre that regulates how much food we eat or our appetite located?
(a) Medulla
(b) Cerebrum
(c) Hypothalamus
(d) Alimentary canal
(c) Hypothalamus
- Where are the lymph vessels called lacteals found?
(a) Mammary glands
(b) Pancreas
(c) Mucosa of intestine
(d) Villi of ileum
(d) Villi of ileum
- The pylorus is located between?
(a) Ileum and rectum
(b) Duodenum and ileum
(c) Stomach and duodenum
(d) Oesophagus and stomach
(c) Stomach and duodenum
- Where are parotid salivary glands present?
(a) Below the tongue
(b) Below the ears
(c) In the angle between two jaws
(d) Below the eye orbits
(b) Below the ears
- Essentially, the meaning of the word ‘digestion’ is?
(a) burning of food
(b) oxidation of food
(c) hydrolysis of food
(d) breakdown of food
(c) hydrolysis of food
- Hardening of tooth enamel is caused by which element?
(a) Calcium
(b) Fluorine
(c) Iodine
(d) Sodium
(b) Fluorine
- In which of the following is a large caecum that helps in the digestion of cellulose with symbiotic bacteria present?
(a) Man
(b) Rabbit
(c) Cat
(d) Frog
(b) Rabbit
- Where are parotid salivary glands present?
(a) Below the tongue
(b) Below the cheeks
(c) In the angle between two jaws
(d) Below the eye orbits
(b) Below the cheeks
- What is likely to happen if for some reason the parietal cells of the gut epithelium become partially non-functional?
(a) The pancreatic enzymes and especially the trypsin and lipase will not work efficiently
(b) The pH of the stomach will fall abruptly
(c) Steapsin will be more effective
(d) Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones
(d) Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones
- What attaches the tongue to the floor of the oral cavity?
(a) Papillae
(b) Frenulum
(c) Uvula
(d) Gullet
(b) Frenulum
- Which one of the following is the correct pairing of the site of action and substrate of rennin?
(a) Stomach – fat
(b) Small intestine – protein
(c) Stomach – casein
(d) Mouth – starch
(c) Stomach – casein
- Where is the digestion of proteins, fats and carbohydrates completed?
(a) Stomach
(b) Duodenum
(c) Ileum
(d) None of these
(c) Ileum
- What controls the reflex action of swallowing of food from the buccal cavity into the oesophagus?
(a) Brain
(b) Medulla oblongata
(c) Hormones
(d) Peripheral nerves
(d) Peripheral nerves
- Which of the following help the blood to absorb glucose, some amino acids and sodium?
(a) Simple diffusion
(b) Active transport
(c) Facilitated transport
(d) The statement is incorrect since they are absorbed in lymph and not in blood
(b) Active transport
- What does gastric juice not contain?
(a) Lipase
(b) Rennin
(c) Protease
(d) Amylase
(d) Amylase
- Amino acids, the products of protein digestion, are absorbed into the ileum through
(a) Lacteals of villi
(b) Blood capillaries of villi
(c) Both (a) and (b)
(d) Muscularis mucosa of villi
(b) Blood capillaries of villi
- Gastric juice contains which of the following enzymes?
(a) Pepsin and renin
(b) Amylase, pepsin and lipase
(c) Amylase and pepsin
(d) Insulin and glucagon
(a) Pepsin and renin
- What is the function of the gallbladder?
(a) storage of bile
(b) formation of enzymes
(c) synthesis of bile
(d) formation of bile salts
(a) storage of bile
- As digested lipids are absorbed by the lymphatics of the small intestine, they become milky. What are these lipoprotein droplets called?
(a) Chyme
(b) Chyle
(c) Chylomicron
(d) Micelles
(c) Chylomicron
- What does hydrolysis of phospholipids yield?
(a) Glycerol, phosphoric acid and fatty acids
(b) Glycerol, phosphoric acid and a nitrogen base
(c) Glycerol & fatty acids
(d) Acetyl CoA
(a) Glycerol, phosphoric acid and fatty acids
- Which one of the following foods gives more calories per unit mass of food?
(a) Protein
(b) Carbohydrates
(c) Fat
(d) Water
(c) Fat
- A healthy individual consumes the following diet- 5 grams of raw sugar, 4 grams of albumin, 10 grams of buffalo ghee adulterated with 2 grams of vegetable ghee (hydrogenated vegetable oil), and 5 grams of lignin. How many calories he is likely to get?
(a) 144
(b) 126
(c) 164
(d) 112
(a) 144
- Which one of the following statements is true?
(a) Pepsin cannot digest casein.
(b) Trypsin can digest collagen.
(c) Pepsin cannot digest collagen.
(d) Chymotrypsin can digest casein.
(d) Chymotrypsin can digest casein.
- What are protein-coated small fat globules for absorption called?
(a) Chylomicrons
(b) Micelles
(c) Lacteals
(d) None of these
(a) Chylomicrons
- In which of the following does ptyalin of saliva act?
(a) slightly alkaline (7.8) medium
(b) slightly acidic (6.8) medium
(c) neutral (7.00) medium
(d) strongly acidic (3.2) medium
(b) slightly acidic (6.8) medium
- Where are oxyntic cells located?
(a) Islets of Langerhans and secrete glucagon
(b) Gastric epithelium and secrete pepsin
(c) Gastric glands and secrete HCl
(d) Kidneys and secrete renin
(c) Gastric glands and secrete HCl
- What is enterokinase?
(a) A hormone that prevents the secretion of gastric juice
(b) An enzyme that activates the enzymes of pancreatic juice
(c) An enzyme that activates the proteolytic enzymes of succus entericus
(d) A hormone that prevents the secretion of pancreatic juice
(b) An enzyme that activates the enzymes of pancreatic juice
- Hydrolysis by which one of the following enzymes produces only glucose?
(a) Amylase
(b) Sucrase
(c) Lactase
(d) Maltase
(d) Maltase
- What induces the contraction of the gall bladder?
(a) Gastrin
(b) Cholecystokinin
(c) Secretin
(d) Enterogastrone
(b) Cholecystokinin
- The largest gland – the liver has many functions. Choose one from the following which is not correct.
(a) Metabolism of carbohydrate
(b) Digestion of fat
(c) Formation of bile
(d) Secretion of a hormone called gastrin
(d) Secretion of a hormone called gastrin
- Among the following, mark the true statement.
(a) Trypsinogen is an inactive enzyme
(b) Trypsinogen is secreted by intestinal mucosa
(c) Enterokinase is secreted by the pancreas
(d) Bile contains trypsin
(a) Trypsinogen is an inactive enzyme
- What is responsible for the first step in the digestion of milk in humans?
(a) Lipase
(b) Trypsin
(c) Rennin
(d) Pepsin
(c) Rennin
- The blood absorbs fructose through mucosa cells of the intestine by a process called?
(a) active transport
(b) facilitated transport
(c) simple diffusion
(d) co-transport mechanism
(b) facilitated transport
- Select the incorrect statement from the following.
(a) Goblet cells are present in the mucosa of the intestine and secrete mucus
(b) Oxyntic cells are present in the mucosa of the stomach and secrete HCl.
(c) Acini are present in the pancreas and secrete carboxypeptidase
(d) Brunner’s glands are present in the submucosa of the stomach and secrete pepsinogen
(d) Brunner’s glands are present in the submucosa of the stomach and secrete pepsinogen
- What does the gastric juice of infants contain?
(a) nuclease, pepsinogen, lipase
(b) pepsinogen, lipase, rennin
(c) amylase, rennin, pepsinogen
(d) maltase, pepsinogen, rennin
(b) pepsinogen, lipase, rennin
- Human primary dentition differs from permanent dentition in that it does not have which type of teeth?
(a) Premolars
(b) Molars
(c) Incisors
(d) Canine
(a) Premolars
- What enzyme is not present in succus entericus?
(a) nucleases
(b) nucleosidase
(c) lipase
(d) maltase
(a) nucleases
- Which of the following secretes gastric acid in the stomach?
(a) gastrin secreting cells
(b) parietal cells
(c) peptic cells
(d) acidic cells
(b) parietal cells
- The hepatopancreatic duct opening into the duodenum is guarded by which of these?
(a) Semilunar valve
(b) Ileocaecal valve
(c) Pyloric sphincter
(d) Sphincter of Oddi
(d) Sphincter of Oddi
- Antibacterial lysozyme is secreted by which cells in the “Crypts of Lieberkuhn”?
(a) Paneth cells
(b) Zymogen cells
(c) Kupffer cells
(d) Argentaffin cells
(a) Paneth cells
- From where does the hepatic portal vein drain blood to the liver?
(a) Stomach
(b) Kidneys
(c) Intestine
(d) Heart
(c) Intestine
- The enzyme composition of pancreatic juice is best described by which of the following?
(a) amylase, pepsin, trypsinogen, maltase
(b) peptidase, amylase, pepsin, rennin
(c) lipase, amylase, trypsinogen, procarboxypeptidase
(d) amylase, peptidase, trypsinogen, rennin
(c) lipase, amylase, trypsinogen, procarboxypeptidase
- A baby boy aged two years is admitted to play school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?
(a) Canines
(b) Pre-molars
(c) Molars
(d) Incisors
(b) Pre-molars
- Which of the following secretes a carbohydrate-splitting enzyme?
(a) liver
(b) zymogen cells of gastric glands
(c) salivary glands
(d) crypts of Leiberkuhn
(c) salivary glands
- In humans, common bile ducts are formed by the joining of?
(a) Pancreatic duct and bile duct
(b) Cystic duct and hepatic duct
(c) Cystic duct and pancreatic duct
(d) Hepatic duct and pancreatic duct
(b) Cystic duct and hepatic duct
- What does tocopherol stand for?
(a) Vitamin A
(b) Vitamin E
(c) Vitamin C
(d) Vitamin K
(b) Vitamin E
- Deficiency of which vitamin causes scurvy?
(a) A
(b) B
(c) E
(d) C
(d) C
- Gall bladder contractions are caused by?
(a) gastrin
(b) secretin
(c) cholecystokinin
(d) enterokinase
(c) cholecystokinin
- What is the function of rennin?
(a) vasodilation
(b) reduce blood pressure
(c) degradation of angiotensinogen
(d) none of the above
(d) none of the above
- What does the liver in our body store?
(a) Vitamin A
(b) Vitamin D
(c) Vitamin B12
(d) All of these
(d) All of these
- What is vitamin C also known as?
(a) ascorbic acid
(b) glutamic acid
(c) aspartic acid
(d) enolic acid
(a) ascorbic acid
- Where are Brunner’s glands present?
(a) duodenum
(b) oesophagus
(c) ileum
(d) stomach
(a) duodenum
- What causes milk to curdle in the small intestine?
(a) rennin
(b) trypsin
(c) chymotrypsin
(d) ptyalin
(a) rennin
- Which of the following has the lowest pH?
(a) Bile
(b) Saliva
(c) Gastric juice
(d) Pancreatic juice
(c) Gastric juice
- Which of the following teeth are lophodont?
(a) Incisor and canine
(b) Premolar and molar
(c) Canine and premolar
(d) Premolar and incisor
(b) Premolar and molar
- Wharton’s duct belongs to?
(a) Parotid gland
(b) Sublingual gland
(c) Submaxillary gland
(d) Pancreatic gland
(c) Submaxillary gland
- In the digestion of what does the pancreatic juice play a role?
(a) proteins and carbohydrates
(b) proteins, fats and carbohydrates
(c) proteins and fats
(d) proteins only
(b) proteins, fats and carbohydrates
- Among the following, which one is not a common disorder related to digestion?
(a) Tetanus
(b) Diarrhoea
(c) Jaundice
(d) Dysentery
(a) Tetanus
- Which of the following is a gland which is not associated with the alimentary canal?
(a) pancreas
(b) adrenal
(c) liver
(d) salivary glands
(b) adrenal
- Consuming fish is considered healthier than eating flesh from other animals because when compared to the flesh of other animals, fish contains?
(a) polyunsaturated fatty acids
(b) saturated fatty acids
(c) essential vitamins
(d) more carbohydrates and proteins
(a) polyunsaturated fatty acids
- Endoscopy, which is used to examine the stomach or other inner parts of the body, is based on the phenomenon of?
(a) total internal reflection
(b) interference
(c) diffraction
(d) polarization
(a) total internal reflection
- Excessive consumption of what causes lathyrism?
(a) khesari dal
(b) mustard oil
(c) polished rice
(d) mushrooms
(a) khesari dal
- In which of the following does the emulsification of fat by bile occur?
(a) liver
(b) pancreas
(c) duodenum
(d) stomach
(c) duodenum
- Digestion enzymes are not produced by which of the following?
(a) Acini of Pancreas
(b) Liver
(c) Stomach
(d) Duodenum
(b) Liver
- The completion of digestion of fats, proteins and carbohydrates takes place in?
(a) liver
(b) large intestine
(c) stomach
(d) small intestine
(d) small intestine
- When anxiety and spicy food are consumed together by an otherwise normal human, what may occur?
(a) Indigestion
(b) Jaundice
(c) Diarrhoea
(d) Vomiting
(a) Indigestion
- What is present at the surface of the epithelial cells of the intestine that absorb food?
(a) pinocytic vesicles
(b) microvilli
(c) zymogen granules
(d) phagocytic vesicles
(b) microvilli
- Secretin and cholecystokinin are digestive hormones. Where are they secreted?
(a) Pyloric stomach
(b) Duodenum
(c) Ileum
(d) Oesophagus
(b) Duodenum
- Which of the following produces and secretes the protein – angiotensinogen?
(a) endothelial cells (lining the blood vessels)
(b) liver cells
(c) juxtaglomerular (JG) cells
(d) macula densa cells
(b) liver cells
- What will happen if an inhibitor blocks the secretion of parietal cells of gastric glands?
(a) Gastric juice will be deficient in chymosin.
(b) Gastric juice will be deficient in pepsinogen.
(c) In the absence of HCI secretion, inactive pepsinogen is not converted into the active pepsin enzyme.
(d) Enterokinase will not be released from the duodenal mucosa and so trypsinogen is not converted to trypsin.
(c) In the absence of HCI secretion, inactive pepsinogen is not converted into the active pepsin enzyme.
- Which one of the following is the correct matching of the site of action, substrate, and end product?
(a) Duodenum : Triglycerides : Monogly-cerides
(b) Small intestine : Starch : Disaccharide (Maltose)
(c) Small intestine : Proteins : Amino acids
(d) Stomach : Fats : Micelles
(b) Small intestine : Starch : Disaccharide (Maltose)
- Infants below the age of one year are likely to suffer from what when breastfeeding is replaced by less nourishing food low in protein and calories?
(a) Rickets
(b) Kwashiorkor
(c) Pellagra
(d) Marasmus
(d) Marasmus
- Even though a young infant feeds entirely on the mother’s white milk, the stools that the infant passes out are quite yellowish. What is the reason for this yellow colour?
(a) bile pigments passed through bile juice
(b) undigested milk protein casein
(c) pancreatic juice poured into the duodenum
(d) intestinal juice
(a) bile pigments passed through bile juice
- When it comes to digestion and absorption of food in humans, which of the following statements is true?
(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 the 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.
(a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na+.
- What will be affected if for some reason the goblet cells are non-functional?
(a) production of somatostatin
(b) secretion of sebum from the sebaceous glands
(c) maturation of sperms
(d) smooth movement of food down to the intestine
(d) smooth movement of food down to the intestine
- Two friends are eating together at a dining table. While swallowing some food, one of them suddenly starts coughing. This coughing could be due to improper movement of the?
(a) epiglottis
(b) diaphragm
(c) neck
(d) tongue
(a) epiglottis
- The first step in human milk digestion is carried out by which of the following enzymes?
(a) Pepsin
(b) Rennin
(c) Lipase
(d) Trypsin
(b) Rennin
- Which of the following statements is incorrect?
(a) Brunner’s glands are submucosal
(b) Irregular folds of the gastric mucosa are rugae
(c) Glisson’s capsule is the connective tissue sheath of the hepatic lobule
(d) Mesothelium or serosa lies close to the circular layer of tunica muscularis
(d) Mesothelium or serosa lies close to the circular layer of tunica muscularis
- Even when eating a carbohydrate-free diet, a patient with diabetes mellitus excretes glucose in urine. What is most likely the reason for this?
(a) Amino acids are catabolised in the liver to form sugar
(b) Amino acids are discharged into the bloodstream from the liver
(c) Fats are catabolised to form glucose
(d) None of these
(c) Fats are catabolised to form glucose
- What does the pancreatic lipase act upon?
(a) glycogen
(b) triglycerides
(c) disaccharides
(d) polypeptides
(b) triglycerides
- In vertebrates, the stomach is the chief site of digestion of?
(a) Proteins
(b) Carbohydrates
(c) Fats
(d) All
(a) Proteins
- Which of the following is the substrate for amylase?
(a) Protein
(b) Fats
(c) Starch
(d) Cane sugar
(c) Starch
- As HCl is to pepsinogen, so is enterokinase to?
(a) renin
(b) trypsinogen
(c) pectin
(d) none of these
(b) trypsinogen
- Enzymes are not secreted by which part of the alimentary canal?
(a) Mouth
(b) Oesophagus
(c) Stomach
(d) Duodenum
(b) Oesophagus
- Rennin acts on milk protein and changes?
(a) Caesinogen into caesin
(b) Caesin into paracaesin
(c) Caseinogen into paracaesin
(d) Paracaesin into caesinogen
(b) Caesin into paracaesin
- A patient suffering from what is generally advised to especially consume more meat, lentils, milk and eggs in their diet?
(a) Scurvy
(b) Kwashiorkor
(c) Rickets
(d) Anaemia
(b) Kwashiorkor
- Which of the following enzymes digest milk protein in an alkaline medium?
(a) Pepsin
(b) Trypsin
(c) Rennin
(d) Chymotrypsin
(d) Chymotrypsin
- Which one of the following is the correct match of a fat-soluble vitamin and its related deficiency disease?
(a) Retinol – Xerophthalmia
(b) Cobalamine – Beri-beri
(c) Calciferol – Pellagra
(d) Ascorbic acid – Scurvy
(a) Retinol – Xerophthalmia
- In which of the following does the absorption of water, alcohol and simple sugars occur?
(a) Oral mucosa
(b) Gastric mucosa
(c) Mucosa of ileum only
(d) Mucosa
(b) Gastric mucosa
- Carbohydrases are not present in?
(a) Intestinal juice
(b) Pancreatic juice
(c) Gastric juice
(d) Saliva
(c) Gastric juice
- A healthy person eats the following diet – 5 gm raw sugar, 4 gm albumin, 10 gm pure buffalo ghee adulterated with 2 gm vegetable ghee (hydrogenated vegetable oil) and 5 gm lignin. How many calories he is likely to get?
(a) 144
(b) 126
(c) 164
(d) 112
(a) 144
- Regarding intestinal villi, which of the following are false?
(a) they possess microvilli
(b) they increase the surface area
(c) they are supplied with capillaries and the lacteal vessels
(d) they only participate in the digestion of fats
(d) they only participate in the digestion of fats
- What is carried by the hepato-pancreatic duct that opens into the duodenum?
(a) bile
(b) pancreatic juice
(c) both bile and pancreatic juice
(d) saliva
(c) both bile and pancreatic juice
- On the kelvin scale, what is the normal temperature of the human body?
(a) 280
(b) 290
(c) 300
(d) 310
(d) 310
- Disorder of which of the following includes jaundice?
(a) Excretory system
(b) Skin and eyes
(c) Digestive system
(d) Circulatory system
(c) Digestive system
- What happens when the gall bladder of a man is removed?
(a) fat digestion is not possible
(b) acidity continues in the duodenum
(c) effect of pancreatic juice upon food is impaired
(d) All of these
(d) All of these
- Which one of the following sets of organ and histological structures present in it is correct?
(a) Stomach–goblet cells, Brunner’s glands, zymogen cells
(b) Intestine–goblet cells, crypts of Leiberkuhn, submucosa
(c) Lung–vocal sacs, bronchioles, bronchus
(d) Kidney–glomerulus, alveoli, loops of Henle
(b) Intestine–goblet cells, crypts of Leiberkuhn, submucosa
- Which of the following is a functional unit of absorption of digested food?
(a) Payer’s patches
(b) villi
(c) crypts of Leiberkuhn
(d) Brunner’s gland
(b) villi
- Between which of the following is the sphincter of Oddi located?
(a) Oesophagus and cardiac stomach
(b) Pyloric stomach and duodenum
(c) Hepatic duct and cystic duct
(d) Hepatopancreatic duct and duodenum
(d) Hepatopancreatic duct and duodenum
- What is the utilization of absorbed food substances by tissues called?
(a) Deglutition
(b) Assimilation
(c) Emulsification
(d) Constipation
(b) Assimilation
- The hydrolytic action of which one of the following enzymes produces pentose sugar?
(a) Amylase
(b) Sucrase
(c) Nucleotidase
(d) None of these
(d) None of these
- Which of the following substance can be assimilated unchanged?
(a) Vitamin
(b) Starch
(c) Proteins
(d) Lipids
(a) Vitamin
- What is the reason for the secretion of the hormone cholecystokinin?
(a) Controlling blood pressure
(b) Absorbtion of iron
(c) Bile functions
(d) Release of insulin
(c) Bile functions
- Long-term consumption of butter, red meat, and eggs may lead to?
(a) vitamin A toxicity
(b) kidney stones
(c) hypercholesterolemia
(d) urine laden with ketone bodies
(c) hypercholesterolemia
- Which pair of cells with their secretions is correct?
(a) Oxyntic cells – A secretion with pH between 2.0 and 3.0
(b) Alpha cells of Islets of Langerhans – Secretion that decreases blood sugar level.
(c) Kupffer cells – A digestive enzyme that hydrolysis nucleic acids.
(d) Sebaceous glands – A digestive enzyme that hydrolysis nucleic acids
(a) Oxyntic cells – A secretion with pH between 2.0 and 3.0
- In our body, the fat present below the skin surface acts as a barrier against what?
(a) loss of heat from the body
(b) loss of essential body fluids
(c) loss of salts from the body
(d) entry of harmful micro-organisms from the environment
(a) loss of heat from the body
- Currently, India needs to give top priority to which of the following nutritional deficiency condition for remedial action?
(a) scurvy
(b) rickets
(c) xerophthalmia
(d) pellagra
(c) xerophthalmia
- What is buffalo milk’s average fat content?
(a) 7.2%
(b) 4.5%
(c) 9.0%
(d) 10.9%
(a) 7.2%
- What is digested in the stomach?
(a) carbohydrates
(b) fats
(c) proteins
(d) All of these
(c) proteins
- In mammals, the hormone that is involved in the discharge of pancreatic juice and contraction of the gall bladder is?
(a) secretin
(b) secretin and cholecystokinin
(c) gastrin
(d) enterogastrone
(b) secretin and cholecystokinin
- Retarded function of what may cause jaundice?
(a) Lungs
(b) Kidneys
(c) Heart
(d) Liver
(d) Liver
- Which of the following secreted succus entericus?
(a) islets of Langerhans
(b) gastric glands
(c) uterine crypts
(d) crypts of Leiberkuhn and Brunner’s glands
(d) crypts of Leiberkuhn and Brunner’s glands
- What does the chymotrypsin act upon?
(a) proteins in the duodenum in an alkaline medium
(b) starch in duodenum
(c) proteins in stomach
(d) proteins in the duodenum in an acidic medium
(a) proteins in the duodenum in an alkaline medium