Digestion and Absorption - 15 febContact Number: 9667591930 / 8527521718Digestion and Absorption - 15 febContact Number: 9667591930 / 8527521718In which type of dentition, each tooth in the buccal cavity is embedded in a socket of jaw bone?
1. Heterodont
2. Thecodont
3. Diphyodont
4. Monophyodont
The dental formula of human beings is
1.
2.
3.
4.
Oesophagus opens in which part of the stomach?
1. Pyloric
2. Cardiac
3. Fundic
4. Caecum
How many pairs of salivary glands are present in human beings?
1. 2 pairs
2. 3 pairs
3. 4 pairs
4. 5 pairs
Which gland is both exocrine and endocrine?
1. Liver
2. Gall bladder
3. Glisson’s capsule
4. Pancreas
The common hepatopancreatic duct is guarded by
1. Crypts of Lieberkuhn
2. Lacteals
3. Pyloric sphincter
4. Sphincter of Oddi
The wall of alimentary canal from oesophagus to rectum possesses _____ layers.
1. 2 layers
2. 3 layers
3. 4 layers
4. 5 layers
HCl secreting cells present in the stomach are
1. Oxyntic cells
2. Peptic cells
3. Chief cells
4. Mucus neck cells
Which enzyme gets activated by HCl, secreted from gastric glands?
1. Trypsinogen
2. Pepsinogen
3. Renin
4. Chymotrypsin
All of the following juices contain enzymes, except
1. Pancreatic juice
2. Intestinal juice
3. Bile juice
4. Gastric juice
Absorption of water, simple sugars and alcohol etc. takes place in
1. Mouth
2. Stomach
3. Rectum
4. Large intestine
Brunner’s glands are found in
1. Mucosa of ileum
2. Wall of rectum
3. Sub-mucosa of stomach
4. Sub-mucosa of duodenum
Crypts of Lieberkuhn are present in
1. Stomach
2. Pharynx
3. Oesophagus
4. Intestine
The lacteals are found in
1. Salivary glands
2. Pharynx
3. Intestinal villi
4. Liver
The main function of bile is to
1. Eliminate the waste products
2. Emulsify the fats
3. Digest proteins by enzymatic activity
4. Regulate the digestion process
The wave like muscular contractions of the digestive tract is called
1. Mastication
2. Assimilation
3. Peristalsis
4. Stimulation
Abnormal frequency of bowel movement and increased liquidity of the faecal discharge is known as
1. Vomiting
2. Diarrhoea
3. Constipation
4. Indigestion
The food that enters into intestine from stomach is
1. Alkaline chyle
2. Fundus
3. Acidic chyme
4. Bolus
Match the following
Column l Column ll
(Salivary gland) (Their location)
a. parotids (i) Below tongue
b. Sub-maxillary/sub-mandibular (ii) Lower jaw
c. Sub-linguals (iii) Cheek
1. a(i), b(ii), c(iii)
2. a(i), b(iii), c(ii)
3. a(ii), b(i), c(iii)
4. a(iii), b(ii), c(i)
Select the incorrect option
1. Bilirubin and biliverdin are the bile pigments
2. Emulsification is the breakdown of the fats into very small droplets
3. Rennin is a proteolytic enzyme found in the pancreatic juice of infants which helps in the digestion of milk protein
4. Mucus and bicarbonates protect mucosal epithelium from excoriation by highly conc. HCl
Where do certain symbiotic microorganisms normally occur in human body
1. Duodenum
2. Caecum
3. Oral lining and tongue surface
4. Vermiform appendix and rectum
Two friends are eating together on a dining table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement of
1. Tongue
2. Epiglottis
3. Diaphragm
4. Neck
If for some reason our goblet cells are non-functional this will adversely affect
1. Smooth movement of food down the intestine
2. Production of somatostatin
3. Secretion of sebum from the sebaceous glands
4. Maturation of sperms
If for some reason the parietal cells of the gut epithelium become partially non-functional, what is likely to happen?
1. The pancreatic enzymes and specially the trypsin and lipase will not work efficiently
2. The pH of stomach will fall abruptly
3. Steapsin will be more effective
4. Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones
Which one of the following pairs of food components in humans reaches the stomach totally undigested?
1. Starch and fat
2. Fat and cellulose
3. Starch and cellulose
4. Protein and starch
A person who is on a long hunger strike and is surviving only on water, will have:
1. Less urea in his urine
2. More sodium in his urine
3. Less amino acids in his urine
4. More glucose in his blood