Q1.What is the dental formula of human being?
a)2123/2123
b)2123/2213
c)2114/2114
d)2122/2122
Answer
Ans.(a)
Q2.Which one serves as a passage for both food and air?
a)Larynx
b)Pharynx
c)Gullet
d)Glottis
Answer
Ans.(b)
Q3.Bile juice is stored in which organ of human body?
a)Gall bladder
b)Liver
c)Kidney
d)Pancreas
Answer
Ans.(a)
Q4.Which one of the following sequence is in correct order?
a)Descending portal colon→Rectum→Anus
b)Colon→Anus→Rectum
c)Stomach→Jejunum→Duodenum
d)Ileum→Colon→Caecum
Answer
Ans.(a)
Q5.Given below the diagram of the transverse section of alimentary canal.Label it correctly and Choose the correct option accordingly.
b)A- Muscularis B-Serosa C-Mucosa D-Submucosa
c)A-Serosa B-Muscularis C-Mucosa D-Submucosa
d) A- Serosa B- Muscularis C-Submucosa D-Mucosa
Answer
Ans.(d)
Q6.How many salivary glands are present in human being?
a)6
b)10
c)8
d)12
Answer
Ans.(a)
Q7.Which one of the following is regarded as source of instant energy?
a)Fats
b)Carbohydrates and Fats
c)Carbohydrates only
d)Minerals and Vitamins
Answer
Ans.(c)
Q8.The innermost layer of human gut forms irregular folds in the stomach which are known as
a)lumen
b)villi
c)rugae
d)Both b) and c)
Answer
Ans.(c)
Q9.Common bile duct is formed by the fusion of
a)pancreatic duct and cystic duct
b)pancreatic duct and hepatic duct
c)pancreaticduct,hepatic duct and cystic duct
d)hepatic duct and cystic duct
Answer
Ans.(d)
Q10Which one is not associated with the secretion of saliva in human beings?
a)Parotids glands
b)Sublingual glands
c)Zymogenic cells
d)Submaxillary glands
Answer
Ans.(c)
Q11.Which enzyme is present in human saliva?
a)Ptylin
b)Pepsin
c)Enterokinase
d)Maltase
Answer
Ans.(a)
Q12. The diagram of large intestine of man is given below.Identify the parts labelled A, B, C, D, E and F
b) F=caecum,B=Vermiform appendix,E=Ascending colon,D=Transverse colon,C=Descending colon,
c) F=caecum,B=Vermiform appendix,C=Ascending colon,D=Transverse colon,E=Descending colon,
d) A=caecum,B=Vermiform appendix,D=Ascending colon,E=Transverse colon,F=Descending colon,
Answer
Ans.(a)
Q13.A large lymph vessel present in the villus of small intestine is called
a)crypts
b)lacteal
c)Peyer’s patches
d)valve of kerkring<
Answer
Ans.(b)
Q14.Which of the following match is correct?
a)Renin-Protein
b)Trypsin-starch
c)Invertase-Sucrase
d)Amylase-Lactose
Answer
Ans.(c)
Q15.Match the following columns
Column -I Column-II
a-Salivary amylase 1. Proteins
b -Bile salts 2. Milk protein
c-Renin 3. starch
d-Pepsin 4. Lipids
e-Steapsin 5. Emulsification of fats
a) 5 4 1 2 3
b) 3 5 2 1 4
c) 2 3 5 4 1
d) 2 3 4 5 1
Answer
Ans.(b)
Q16.Which one of the following sugar is most rapidly absorbed in the human gut.?
a)Glucose
b)Fructose
c)Galactose
d)Sucrose
Answer
Ans.(c)
Q17.Select the true statement regarding the digestion and absorption of food in humans.
a)Oxyntic cell in human stomach secretes proenzymes,pepsinogen and trypsinogen
b)Chylomicrons are small lipoprotein vesicles which are transported from the intestine into blood capillaries.
c)About 70% of the starch is hydrolysed by salivary amylase.
d)Fructose and aminoacids are absorbed through the intestinal mucosa with the help of carrier ions like Na+
Answer
Ans.(b)
Q18.Absorption of fat occours through the process of
a)active transport
b)passive transport
c)osmosis
d)simple diffusion
Answer
Ans.(d)
Q19.What is common among amylase,renin and trypsin?
a)all are produced in stomach
b)all act at a pH lower than 7
c)all are proteins
d)all are proteolytic enzymes
Answer
Ans.(c)
Q20.What name would you suggest for a thoroughly mixed food with gastric juices by the churning movements of muscular stomach wall?
a)Bolus
b)Chyme
c)Either bolus or chime
d)none of these
Answer
Ans.(b)
Q21.Which is the inactive form of enzyme,pepsin?
a)Pepsinogen
b)Protease
c)Trypsin
d)Peptones
Answer
Ans.(a)
Q22.Pepsinogen is converted into active form of enzyme pepsin with the help of which of the following compound?
a)Proenzyme
b)Hydrochloric acid
c)Electrolyte
d)Bicarbonates
Answer
Ans.(b)
Q23.Which enzyme is responsible for the digestion of milk in infants?
a)Pepsin
b)Trypsin
c)Renin
d)various proteolytic enzyme
Answer
Ans.(c)
Q24.Maximum absorption of water occours in
a)caecum
b)colon
c)small intestine
d)large intestine
Answer
Ans.(b)
Q25.Succus entericus is secreted by
a)Goblet cells
b)Crypts of Lieberkuhn
c)Islets of lengerhans
d)Paneth cell
Answer
Ans.(b)
Q26.What is the composition of bile?
a)bile pigment and bile salts
b)bile pigments and cholesterol
c)cholesterol and phospholipids
d)All the above
Answer
Ans.(d)
Q27.Which of the following present in the filiform papillae of the tongue?
a)chemoreceptors
b)thermoreceptors
c)tactile receptors
d)taste buds
Answer
Ans.(c)
Q28.The gastric juice contain
a)trypsin,renin,pepsin
b)pepsin,trypsin,amylase
c)pepsin ,renin,
d)trypsin,pepsin,lipase
Answer
Ans.(c)
Q29.Fill in the blanks with appropriate options to complete the given equation
Fats—– A—àB—pancreatic lipase_–>Monoglycerides +Fatty acids
a)A-Lysozyme, B-Polyglycerides
b)A-Lysozyme, B-Diglycerides
c)A-Lipase , B)Diglycerides
d)A-Lipase B)Polyglycerides
Answer
Ans.(c)
Q30.Bile salt activates which enzyme?
a)Lipase
b)pancreatic amylase
c)Pepsinogen
d)Trypsinogen
Answer
Ans.(a)
Q31.Choose the incorrect statement regarding human digestive system with reference to a normal person.
a)human saliva is slightly acidic
b)In human being, four pair of salivary gland secretes saliva
c)The quantity of saliva in adult man may be 1 to 1.5L day
d)Enzyme amylase present in saliva is responsible for the break down of starch into simpler sugar
Answer
Ans.(b)
Q32.The given below diagram represents a duct system of pancreas,liver and gall bladder.Label the diagram from A to E.
b) A-Gall bladder, B- bile duct, C-Hepato pancreatic duct D-Pancreatic duct E-Pancreas
c) A-Gall bladder, B- bile duct, E-Hepato pancreatic duct C-Pancreatic duct D-Pancreas
d) A-Gall bladder, B-common bile duct, E-Hepato pancreatic duct D-Pancreatic duct C-Pancreas
Answer
Ans.(d)
Q33.Which form of fats is absorbed into the intestinal cells?
a)micelles
b)chylomicrons
c)fatty acids
d)both a) and b)
Answer
Ans.(a)
Q34.Function of caecum is to carryout digestion of
a)starch
b)proteins
c)cellulose
d)fats
Answer
Ans.(c)
Q35.Part of the stomach which opens into the duodenum?
a)cardiac
b)pyloric
c)fundus
d)body
Answer
Ans.(b)
Q36.Which is the hardest material of the human body?
a)Dentine
b)Enamel
c)Teeth
d)Bone
Answer
Ans.(b)
Q37.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
Ans.(d)
Q38.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?<p> a)Pancreatic juice poured into duodenum
b)Intestinal juice
c)Bile pigments passed through bile juice
d)Undigested milk protein casein.
Answer
Ans.(c)
Q39.The absorption of water,alcohol and monosaccharidesoccour in
a)gastric mucosa
b)mucosa of ileum
c)intestinal mucosa
d)none of the above
Answer
Ans.(a)
Q40.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
Ans.(d)
Q41.Hepatopancreatic duct opens into the duodenum and carries
a)Bile
b)Pancreatic juice
c)both bie and pancreatic juice
d)saliva
Answer
Ans.(c)
Q42.One of the following is not a common disorder associated with digestive system:
a)Tetanus
b)Diarrhoea
c)Jaundice
d)Dysentery
Answer
Ans.(a)
Q43.Which one of the following is a non reducing carbohydrate?
a)Maltose
b)Sucrose
c)Lactose
d)Ribose 5 –phosphate
Answer
Ans.(b)
Q44.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
Ans.(a)
Q45.What is the another name of gastro oesophageal sphincter?
a)pyloric sphincter
b)gastro duodenal sphincter
c)cardiac sphincter
d)sphincter of oddi
Answer
Ans.(c)
Q46.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
Ans.(a)
Q47.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
Ans.(c)
Q48.Which of the following cells produce HCl ?
a)B-cell
b)α-cell
c)Oxyntic cell
d)Chief cell
Answer
Ans.(c)
Q49.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
Ans.(a)
Q50.Thecodont,diphyodont and heterodont teeth are characterstic of
a)Aves
b)Reptiles
c)Mammals
d)Amphibians
Answer
Ans.(c)
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