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
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
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