1. Gastric glands are situated in
a) Sub-mucosa
b) Mucosa
c) Muscularis
d) Serosa
Explanation: Gastric glands are situated in Mucosa
2.Match the column:
a) A → 4, B → 3, C → 1, 2
b) A → 1, 4, B → 2, C → 3
c) A → 4, B → 1, 3, C → 2
d) A → 4, B → 2, 3, C → 1
Explanation: A → 4, B → 3, C → 1, 2
3. Which is required for the absorption of Vitamin B12?
a) HCl
b) Pepsin
c) Intrinsic factor
d) Amylase
Explanation: Intrinsic factor
4.The stomach stores food for
a) 1 hr
b) 2–3hr
c) 4–5 hrs
d) 30 min
Explanation: The stomach stores food for 4–5 hrs
5. Digestion of carbohydrates starts from
a) Buccal cavity
b) Stomach
c) Small intestine
d) Large intestine
Explanation: Digestion of carbohydrates starts from buccal cavity
6.Select the total number of true statement from the following.
A. In stomach the bolus is converted to chyme.
B. Chief cells secrets intrinsic factor required for absorption of Vit B12
C.

D. Pepsin converts protein into amino acids.
a) 1
b) 2
c) 3
d) 4
Explanation: 2
7. Protection of mucosal epithelium from highly concentrated HCl in stomach is performed by
A. HCO3- Ion
B. Mucus
C. Pepsin
D. Intrinsic factor
a) A and C only
b) B only
c) A and B only
d) A, B and C only
Explanation: A and B only
8. Optimal pH for pepsin is
a) 6.8
b) 1.8
c) 3.8
d) 6.0
Explanation: Optimal pH for pepsin is 1.8
9. Which of the following is incorrect about gastric juice?
a) Gastric juice of an infant contain Rennin.
b) Small amount of lipase is present.
c) Gastric juice is secreted by gastric glands.
d) Rennin doesn’t help in digestion of milk protein present in gastric juice of infant.
Explanation: "Rennin doesn’t help in digestion of milk protein present in gastric juice of infant". This is incorrect.
10. Which of the following is released in small intestine?
a) Bile juice
b) Pancreatic juice
c) Intestinal juice
d) All of these
Explanation: All of these
11. Bile and pancreatic juice is released in small intestine by
a) Cystic duct
b) Bile duct
c) Pancreatic duct
d) Hepatic–pancreatic duct
Explanation: Hepatic–pancreatic duct
12. Select from the following the total number of enzyme secreted by the pancrease.
Trypsinogen, Amylase, Lipase, Pepsinogen, Prorennin, Maltase, Sucrase, Chymotrypsinogen,
Procarboxypeptidase, Nucleases
a) 4
b) 5
c) 6
d) 7
Explanation: 6
13. Trypsinogen is activated by
a) Enterokinase
b) Chymotrypsin
c) Rennin
d) Acidic pH
Explanation: Trypsinogen is activated by Enterokinase.
14. Which enzyme activates other enzymes in pancreatic juice?
a) Enterokinase
b) Chymotrypsin
c) Trypsin
d) Lipase
Explanation: Trypsin
15.Enterokinase is secreted by
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Explanation: Enterokinase is secreted by Small intestine.
16. Bile juice contains all except
a) Bilirubin and bili-verdin
b) Bile salts and cholesterol
c) Phospholipids
d) Enzymes
Explanation: Bile juice contains all except enzymes
17. Which of the following is incorrect about bile?
a) It contains bilirubin and biliverdin which are waste products.
b) Bile salts in it helps in the emulsification of fats.
c) Bile also activates lipases.
d) Bile contain digestive enzymes .
Explanation: "Bile contain digestive enzymes". This is incorrect.
18.Intestinal juice or succus entericus is formed by the secretion of
a) Goblet cells
b) Brush border cells lining mucosa
c) Both (a) and (b)
d) None
Explanation: Both (a) and (b)
19. Enzymes like dipeptidases, lipases, nucleosidases, nucleotidases, maltase and sucrase are
present in
a) Bile juice
b) Gastric juice
c) Pancreatic juice
d) Succus entericus
Explanation: Succus entericus
20. Brunner’s gland
a) Is situated in mucosal layer
b) Is present in sub-mucosal layer
c) Secretes HCI
d) Helps in the activation of gastric enzyme
Explanation: Brunner’s gland is present in sub-mucosal layer.
21.Select the incorrect from the following:
Explanation:
22.Select the incorrect statement from the following:
a) Succus entericus act on end products produced by pancreatic enzyme.
b) Final steps of digestion occur far away from the mucosal epithelial cells of the intestine.
c) The breakdown of biomacromolecule generally occurs in the duodenum region of small
intestine.
d) Simple substance forms after digestion is absorbed mainly by jejunum and ileum.
Explanation: "Final steps of digestion occur far away from the mucosal epithelial cells of the intestine". This is incorrect statement.
23.Action of which enzyme produces glucose?
a) Maltase
b) Lactase
c) Sucrase
d) All of these
Explanation: All of these
24. Action of which enzyme produces only glucose?
a) Maltase
b) Lactase
c) Sucrase
d) All of these
Explanation: Maltase
25. Where we use term feaces for undigested and unabsorbed food particle in alimentary canal.
a) Jejunum
b) Colon
c) Rectum
d) End of ileum
Explanation: End of ileum
26. Where faecal matters are temporarily stored till defecation?
a) Colon
b) Caecum
c) Ileum
d) Rectum
Explanation: Rectum
27. The activities of gastrointestinal are under
a) Neural control only
b) Hormonal control only
c) Neither hormonal nor neural control
d)Neural and hormonal control
Explanation: Neural and hormonal control
28. The muscular activities of different parts of alimentary canal also be regulated by
a) Local neural control
b) CNS neural control
c) Both (a) and (b)
d) None of these
Explanation: Both (a) and (b)
29. Absorption is a process by which the end product of digestion pass through the intestinal
mucosa into _______
a) Blood/lymph
b) Liver
c) CSF
d) Heart
Explanation: Blood/lymph
30. Secretion of saliva can be stimulated by
a) Sight of food
b) Smell of food
c) Presence of food in oral cavity
d) All of these
Explanation: All of these
31.In addition to controlling the neurons, hormones also influence the
a) Gastric secretions
b) Intestinal secretions
c) Muscular activities of different parts of alimentary canal
d) All of these
Explanation: All of these
32. Hormonal control of the secretion of digestive juice is carried out by local ______, produced
by __________ and _____ mucosa.
a) Neurotransmitters, liver, pancreas
b) Hormones, Liver, pancreas
c) hormones, Gastric, intestinal
d) Neurotransmitters, gastric, intestinal
Explanation: hormones, Gastric, intestinal
33.Absorption of digested food is carried out by
a) Passive method
b) Active transport
c) Facilitated transport
d) All of these
Explanation: All of these
34. Glucose and amino acids are absorbed in the intestine by
a) Active transport
b) Passive transport
c) Selective absorption
d) Osmosis
Explanation: Glucose and amino acids are absorbed in the intestine by active transport.
35. Which of the following statements is incorrect?
A. Absorption of simple sugar, alcohol, some water and medicines take place in stomach.
B. Maximum water absorption occurs in small intestine.
C. Small intestine is the major site of digestion and absorption of food.
D. Fatty acid and glycerol are absorbed by lacteals.
E. Nothing is absorbed in mouth and large intestine.
a) A, D and E only
b) D and E only
c) D only
d) B and C only
Explanation: D and E only
36.Fructose and some amino acids are absorbed by
a) Active transport
b) Diffusion
c) Facilitated transport
d) Osmosis
Explanation: Fructose and some amino acids are absorbed by facilitated transport.
37. A small amount of monosaccharide like glucose, amino acids and some electrolytes like
chloride
ions are generally absorbed by
a) Active transport
b) Simple diffusion
c) Facilitated transport
d) Osmosis
Explanation: Simple diffusion
38.Carrier ions is generally used for facilitated transport of fructose and some amino acids
a) \[Ca^{2+}\]
b) \[Cl^{-}\]
c) \[K^{+}\]
d) \[Na^{+}\]
Explanation: \[Na^{+}\]
39. Amino acids, monosaccharide, electrolytes like Na+ are mainly absorbed by
a) Osmosis
b) Passive transport
c) Facilitated transport
d) Active transport
Explanation: Amino acids, monosaccharide, electrolytes like Na+ are mainly absorbed by active transport.
40. Which of the following statement is wrong about Chylomicrons?
A. Chylomicrons are produced in the epithelial cells of small intestine.
B. It contain triglycerides, cholesterol and phospholipids.
C. It is protein coated small vesicles.
D. Chylomicrons released from the epithelial cell into lacteals.
a) A and D only
b) B and C only
c) All of these
d) None of these
Explanation: None of these
41.Chylomicrons are concerned with the
a) Digestion of fats
b) Absorption of proteins
c) Digestion of protein
d) Absorption of fats
Explanation: Absorption of fats
42. The absorbed substances finally reach the tissues which utilize them for their activities.
This process is called
a) Assimilation
b) Emulsification
c) Catabolism
d) Digestion
Explanation: The absorbed substances finally reach the tissues which utilize them for their activities. This process is called Assimilation.
43. Vomit center is situated at
a) Pons
b) Mid-brain
c) Cerebellum
d) Medulla
Explanation: Vomit center is situated at medulla.
44. Defecation
a) Is a voluntary process
b) Is carried out by a mass peristaltic movement
c) Both (a) and (b)
d) Is otherwise known as ingestion
Explanation: Both (a) and (b)
45. Which of the following statements is incorrect?
a) Faecal accumulation in the rectum initiates a neural reflex causing an urge for its removal.
b) Reflex of vomiting is controlled by medulla.
c) Irregular bowel movements cause constipation.
d) In diarrhea the absorption of food is increased.
Explanation: "In diarrhea the absorption of food is increased". This is incorrect.
46.Marasmus is characterized by
a) Thinning of limbs
b) Skin becomes dry, thin and wrinkled
c) Decreases growth rate
d) All the above
Explanation: All the above
47. Maximum absorption of digested food takes place in
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Explanation: Maximum absorption of digested food takes place in small intestine.
48. Absorption of simple sugar, water and alcohol takes place in
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Explanation: Absorption of simple sugar, water and alcohol takes place in stomach.
49. Mouth can absorb
a) Fatty acid
b) Certain drugs
c) Alcohol
d) All of these
Explanation: Mouth can absorb certain drugs.
50. Jaundice occurs due to the increasing level of
a) \[CaCO_{3}\]
b) \[HCO_{3}\]
c) Bile pigments
d) \[CO_{2}\]
Explanation: Bile pigments