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Digestion and Absorption MCQs | Digestion and Absorption Multiple Choice Questions (MCQs) with Answers

(1) Which form of fats is absorbed into the intestinal cells?
[A] micelles
[B] chylomicrons
[C] fatty acids
[D] both a) and b)
Answer: micelles
(2) Function of caecum is to carryout digestion of
[A] starch
[B] proteins
[C] cellulose
[D] fats
Answer: cellulose
(3) Part of the stomach which opens into the duodenum?
[A] cardiac
[B] pyloric
[C] fundus
[D] body
Answer: pyloric
(4) Which is the hardest material of the human body?
[A] Dentine
[B] Enamel
[C] Teeth
[D] Bone
Answer: Enamel
(5) Which one of the following pairs of food components in humans reaches the stomach totally undigested
[A] starch and cellulose
[B] protein and starch
[C] starch and fat
[D] fat and cellulose
Answer: fat and cellulose
(6) A young infant may be feeding entirely on mother’s milk which is white in colour but he possesses yellowish coloured stools.What is this yellow colour due to?
[A] Pancreatic juice poured into duodenum
[B] Intestinal juice
[C] Bile pigments passed through bile juice
[D] Undigested milk protein casein
Answer: Bile pigments passed through bile juice
(7) The absorption of water,alcohol and monosaccharidesoccour in
[A] gastric mucosa
[B] mucosa of ileum
[C] intestinal mucosa
[D] none of the above
Answer: gastric mucosa
(8) Select what is not true of intestinal villi among followings:
[A] They possesses microvilli
[B] They increase the surface area
[C] They are supplied with capillaries and the lacteal vessels
[D] They only participate in digestion of fats
Answer: They only participate in digestion of fats
(9) Hepatopancreatic duct opens into the duodenum and carries
[A] Bile
[B] Pancreatic juice
[C] both bie and pancreatic juice
[D] saliva
Answer: both bie and pancreatic juice
(10) One of the following is not a common disorder associated with digestive system:
[A] Tetanus
[B] Diarrhoea
[C] Jaundice
[D] Dysentery
Answer: Tetanus
(11) Which one of the following is a non reducing carbohydrate?
[A] Maltose
[B] Sucrose
[C] Lactose
[D] Ribose 5 –phosphate
Answer: Sucrose
(12) Where do certain symbiotic microorganisms normally occour in human body?
[A] Caecum
[B] oral lining and toungue surface
[C] Vermiform appendix and rectum
[D] Duodenum
Answer: Caecum
(13) What is the another name of gastro oesophageal sphincter?
[A] pyloric sphincter
[B] gastro duodenal sphincter
[C] cardiac sphincter
[D] sphincter of oddi
Answer: cardiac sphincter
(14) In humans,which opening is guarded by sphincter of Oddi?
[A] Opening of hepatopancreatic ampulla into duodenum
[B] Opening of stomach into duodenum
[C] Opening of oesophagus into stomach
[D] Opening of bile duct into gall bladder
Answer: Opening of hepatopancreatic ampulla into duodenum
(15) The epithelium of the mucosa remain unaffected from HCl due to
[A] mucous continues to lubricate the inner lining
[B] bicarbonates present in the gastric juices protect the linings
[C] both a) and b)
[D] none of the above
Answer: both a) and b)
(16) Which of the following cells produce HCl ?
[A] B-cell
[B] α-cell
[C] Oxyntic cell
[D] Chief cell
Answer: Oxyntic cell
(17) What is frenulum?
[A] it is the fold by which tongue is attached to the floor of oral cavity
[B] it is an adenoid which is present on pharyngeal wall
[C] it is a tonsil like structure
[D] it is a V-shaped furrow which divides the surface of tongue
Answer: It is the fold by which tongue is attached to the floor of oral cavity
(18) Thecodont,diphyodont and heterodont teeth are characterstic of
[A] Aves
[B] Reptiles
[C] Mammals
[D] Amphibians
Answer: Mammals
(19) The small intestine has three parts. The first part is called
[A] Duodenum
[B] Oesophagus
[C] Larynx
[D] None of the above
Answer: Duodenum
(20) ________ is a characteristic feature of epithelial cells of the intestine
[A] Glottis
[B] Pilus
[C] Bolus
[D] Microvilli
Answer: Microvilli

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