All the following conditions are observed in Marasmus, except
1. It is found in infants less than a year in age, if the mother's milk is replaced too early by other foods which are poor in both proteins and caloric value
2. The layer of fat beneath the skin disappears
3. Hands and other body parts show fluid accumulation (oedema) and swelling
4. Thinning of limbs and ribs become very prominent
How many of the following statements are wrong?
a. The bile duct and the pancreatic duct open
together into the duodenum as the common
hepato-pancreatic duct which is guarded by
sphincter of Boyden.
b. The parotid, sub-maxillary and sub-lingual
salivary glands are located just outside the
buccal cavity.
c. In duodenum, glands are only found in
submucoas which are Brunner's glands, a
type of simple branched tubular glands.
d. There is no modification of the four layers
namely serosa, muscularis, sub-mucosa and
mucosa in different parts of alimentary canal.
e. lipases are absent in the secretion of gastric
glands.
1. One
2. Two
3. Three
4. Four
Which of the following enzyme is not included in the secretions of the brush border cells of mucosa?
| 1. | Maltase | 2. | Dipetidase |
| 3. | Nucleosidease | 4. | Carboxypeptidase |
Which of the following enzyme is not a disaccharidase?
| 1. | Sucrase | 2. | Lactase |
| 3. | Maltase | 4. | Dextrinase |
Chymotrypsinogen and pro-carboxypeptidase of
pancreatic juice are activated by
| 1. | Enterokinase | 2. | Exopeptidase |
| 3. | Trypsin | 4. | Enteropeptidase |
Chylomicrons are protein-coated small fat globules formed in
1. Lumen of intestine
2. Lacteals of villi
3. Cells of mucosa
4. Blood vessels of villi
Which one of the following organ secretes brush
border enzymes?
(1) Pancreas
(2) stomach
(3) Intestine
(4) Buccal cavity
The food in stomach is called
| 1. | Bolus | 2. | Chyme |
| 3. | Chyle | 4. | Food vacuole |
Which statement is correct with reference to chylomicron?
1. They are end products of fat digestion
2. The reconstructed triglycerides in the intestinal cells combine with phospholipids and cholesterol and are released into lymph in the form of protein-coated fat droplets called chylomicrons
3. This is the form in which digested fats are absorbed into intestinal cells
4. These are short chains of fatty acids absorbed directly into blood by diffusion
Trypsinogen is activated by an enzyme, ,
secreted by the intestinal mucosa
(1) Enterogastron
(2) Enterokinase
(3) Carboxypeptidase
(4) Erepsin
Match the following disorders with their characters
| Column I | Column II |
| (a) Constipation | (i) Abnormal frequency of bowel movement and increased liquidity of the faecal discharge |
| (b) Indigestion | (ii) A reflex action (feeling of nausea) |
| (c) Vomiting | (iii) Faeces are retained within the rectum as the bowl movements occur irregularly |
| (d) Diarrhoea | (iv) Feeling of fullness due to anxiety, food poisoning and overeating |
| a | b | c | d | |
| 1 | (iv) | (ii) | (iii) | (i) |
| 2 | (iii) | (iv) | (ii) | (i) |
| 3 | (i) | (iii) | (ii) | (iv) |
| 4 | (i) | (iv) | (iii) | (ii) |
Which of the following is not present in the mucosa of
intestine?
| 1. | Crypts of Lieberkuhn |
| 2. | Brunner's gland |
| 3. | Intestinal gland |
| 4. | All are present in the mucosa of the intestine |
Which of the following is not a correct match of
the substrate, the enzyme acting upon it and the
end product?
1. Starch Maltose Glucose
2. Protein Peptones/Proteoses
Dipeptides
3. Triglycerides Diglycerides
Monoglycerides
4. Peptones/Proteoses Dipeptides
Amino-acids
Which of the following enzyme present in saliva acts as an antibacterial agent that prevents infection?
1. Salivary amylase
2. Thiocyanate
3. Lysozyme
4. Chitinase
Stomach is the site of absorption of
| 1. | Simple sugars | 2. | Water |
| 3. | Alcohol | 4. | All of these |
Study the following reactions involved in degestion
of food.
A. Peptides Dipeptides
B. Nucleic acid Nucleotides
C. Maltose Gulcose+ Gulcose
D. Nucleotides Nucleosides
Sugar+N-bases
Mark the option which includes reaction not
catalysed by brush bordered enzymes
(1) A only
(2) A & C
(3) A & D
(4) A & B
Which of the following is true about digestion and
absorption of food?
1. Trypsin, chymotrypsin and carboxypeptidase
are brush border enzymes
2. The chemical process of digestion is initiated
in the oral cavity. About 60% Starch is
hydrolysed here by salivary amylase to form
maltose
3. Rennin is a proteolytic enzyme found in gastric
juice of infants. Small amount of lipases are
also secreted by the gastric glands
4. If breast feeding is replaced by less nutritive
food low in proteins and calories, the infants
below the age of one year will suffer from
Kwashiorkar
What will happen if bile duct gets blocked?
| 1. | Faces become dry |
| 2. | Acidic chyme will not be neutralised |
| 3. | There will be little digestion in intestine |
| 4. | Little absorption of fats will occur |
Vitamin is absorbed by the help of secretions
of which cells of stomach?
| 1. | Goblet cells | 2. | Parietal cells |
| 3. | peptic cells | 4. | Chief cells |
When skin and eyes turn yellow, it the symptom
of
| 1. | Vomiting | 2. | Diarrhoea |
| 3. | Jaundice | 4. | Constipation |
Succus entericus is the term used for which of the following?
| 1. | A junction present between ileum and large intestine |
| 2. | Foramen present in the heart |
| 3. | Swelling in throat |
| 4. | Intestinal juice |
Match the column I with column II
| Column I | Column II | ||
| a. | Bilirubin and biliverdin | (i) | Sub-lingual |
| b. | Hydrolysis of starch | (ii) | Bile pigments |
| c. | Digestion of proteins | (iii) | Trypsin |
| d. | Salivary glands | (iv) | Amylase |
1. a(ii), b(iv), c(i), d(iii)
2. a(iv), b(i), c(iii), d(ii)
3. a(iii), b(ii), c(iv), d(i)
4. a(ii), b(iv), c(iii), d(i)
Which of the following structures prevents the back flow of faecal matter?
| 1. | Cardiac sphincter | 2. | Pyloric sphincter |
| 3. | lleo-caecal value | 4. | Sphincter of Oddi |
HCl provides the pH which is about
| 1. | 1.8 | 2. | 3.2 |
| 3. | 5.0 | 4. | 6.8 |
Which of the following reactions is not catalysed
by a brush border enzyme?
1. Maltose glucose+ glucose
2. Lactose glucose + glucose
3. Starch Disaccharide
4. Nucleotides Nucleoside
Which of the following statements is incorrect?
| 1. | About 30% of starch is hydrolysed in the buccal cavity |
| 2. | Small amounts of lipases are also secreted by gastric glands |
| 3. | Chymotrypsinogen is activated by trypsin |
| 4. | Brunner's glands secrete enzymes and mucus |
Transverse section of gut shows four layers of the wall
i.e serosa, muscularis, submucosa and mucosa.
Which of the following statements is not correct
regarding its arrangement and modification?
| 1. | Serosa is the outermost layer which is made of thin mesothelium |
| 2. | Oblique muscle layer is present in stomach |
| 3. | All the four layers show modifications in different parts of alimentary canal |
| 4. | Villi and rugae are modified mucosal and submucosal layers respectively |
Common bile duct includes
| 1. | Right and left hepatic ducts and cystic duct |
| 2. | Common hepatic duct and cystic duct |
| 3. | Cystic duct and pancreatic duct |
| 4. | Common hepatic duct and pancreatic duct |
Which type of cells are the part of tubular glands of the stomach epithelium?
A. Pariental cells
B. Peptic cells
C. Zymogen cells
D. Oxyntic cells
1. D only
2. A & d
3. A, B & c
4. A, B, C & D
Digestion of fats starts in
| 1. | Mouth | 2. | Stomach |
| 3. | Small intestine | 4. | Pharynx |
Given below is a diagrammatic representation of
transverse section of gut
Choose the option which is correct for the layers
labelled as A , B, C, and E
1. A Serosa
B Longitudinal muscle layer
C Circular muscle layer
D Mucosa
E Submucosa
2. A Mucosa
B Circular muscle layer
C Longitudinal muscle layer
D Submucosa
E Serosa
3. A Serosa
B Circular muscle layer
C Longitudinal muscle layer
D Submucosa
E Mucosa
4. A Serosa
B Longitudinal muscle layer
C Circular muscle layer
D Submucosa
E Mucosa
Gastric glands are found in
| 1. | Mucosa and submucosa | 2. | Crypts of Lierkuhn |
| 3. | Mucosa | 4. | Muscularis externa |
Find the incorrect match with respect to composition of
digestive juices
(1) Gastric juice Pepsin, erepsin, gastric
lipase
(2) Pancreatic Trypsin
carboxypeptidases,
ribonuclease
(3) Succus entericus Enterokinase,
dipeptidase, sucrase
(4) All are correct
Carbohydrates in the chyme are hydrolysed to disaccharide by amylase of
| 1. | Pancreatic juice | 2. | Gastric juice |
| 3. | Brunner's gland | 4. | Crypts of Lieberkuhn |
Gastric juice contains
1. Trypsin, lipase, rennin
2. Pepsin, lipase, rennin
3. Trypsin, pepsin, lipase
4. Pepsin, rennin, amylase
The wall of the alimentary canal from oesophaus
to rectum possesses four layers namely serosa,
mucosa, muscularis, sub-mucosa. What is the
correct sequence of layers from inside to
outside?
(1) Mucosa, Sub-mucosa, Inner circular and Outer
longitudinal muscles in Muscularis, Serosa
(2) Muucosa, Sub-mucosa, inner longitudinal,
Outer circular muscle i Muscularis, Serosa
(3) Serosa, Outer longitudinal and Inner circular
muscles in Muscularis, Submucosa and
Mucosa
(4) Serosa, outer circular and Inner longitudinal
muscles in Muscularis, Submucosa and
Mucosa
The saliva secreted by salivary glands does not
1. Contain electrolytes like , , and
2. Give safety against dental carries
3. Bring about hydrolysis of starch upto 90%
4. lnitiate the process of digestion
Find the incorrect statement with respect to
Kwashiorkor
(1) It occurs in children whose diets are deficient
in protein
(2) It occurs in children more than one year of
age
(3) Subcutaneous fat is preserved
(4) Oedema is absent
Following are certain enzymatic reactions taking
place in the human alimentary canal. Each
reaction is depicted it with suitable enzyme A, B,
C and D. Find from the options the correct set of
enzymes required to carry out these reactions
Starch Maltose
Nucleosides Sugars + Bases
Di and monoglycerides Fatty acids +
Glycerol
Trypsinogen Trypsin
1. A Pancreatic amylase
B Nucleotidase
C Lipase
D Trypsin
2. A Salivary amylase
B Nucleases
C Dipeptidases
D Enterokinase
3. A Dipeptidases
B Nucleotidase
C Lipase
D Trypsin
4. A Salivary amylase
B Nucleosidases
C Lipase
D Enterokinase
Match the following
| Column I | Column II | ||
| a. | Sphincter of boyden | (i) |
Regulates openings of oesophagus into stomach |
| b. | Sphincter of Oddi | (ii) |
Surrounds the opening of bile duct into pancreatic duct |
| c. | Cardiac sphincter | (iii) |
Regulates the opening of stomach into small intestine |
| d. | Pyloric sphincter | (iv) |
Surrounds ampulla of vater |
1. a(ii), b(iv), c(iii), d(i)
2. a(iv), b(ii), c(i), d(iii)
3. a(iv), b(i), c(iii), d(ii)
4. a(ii), b(iv), c(i), d(iii)
Mark the condition where food is not properly
digested leading to feeling of fullness. This can be
caused due to inadequate secretion, food
poisoning, over eating etc.
| 1. | Vomiting | 2. | Constipation |
| 3. | Indigestion | 4. | Diarrhoea |
Bile duct and pancreatic duct open together
into the duodenum as the common hepato-
pancreatic duct which is guarded by a sphincter
called
| 1. | Sphincter of Boyden |
| 2. | Pyrolic sphincter |
| 3. | Sphincter of Oddi |
| 4. | Gastro-oesophageal sphincter |
Mark the correct pair of food components in human
which reach to stomach in undigested form
| 1. | Starch and fat | 2. | Starch and Protein |
| 3. | Starch and Cellulose | 4. | Cellulose and fat |
Which of the following is true with respect to dentition in
human?
(1) Thecodont, heterodont
(2) Heterodont, acrodont
(3) Thecodont, homodont
(4) Acrodont, bunodont
Mark the incorrect statement
| 1. | Fructose, mannose and some amino acids are absorbed by facilitated diffusion |
| 2. | Various nutrients like amino acids, fatty acid,monosaccharides like glucose, electrolytes like are absorbed by active transport only |
| 3. | Fatty acid and glycerol are first incorporated into small droplets called micelles which move into intestinal cell of mucosa |
| 4. | Transport of water depends upon osmotic gradient |