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
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
Which of the following is not a characteristic feature regarding protein energy malnutrition, marasmus?
(1) It is produced by a simultaneous deficiency of proteins and calories
(2) It is found in infant less than a year of age
(3) Patient shows wasting of muscles, thining of limbs, failure of growth and brain development
(4) Some fat is left under the skin of patient,extensive oedema and swelling of body parts are seen
Stomach is the site of absorption of
(1) Simple sugars
(2) Water
(3) Alcohol
(4) All of these
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