Fructose and some amino acids are absorbed by:
(1) Active transport
(2) Diffusion
(3) Facilitated transport
(4) Osmosis
Which of the following statement is wrong about chylomicrons?
I. Chylomicrons are produced in the epithelial cells of small intestinal
II. It contains triglycerides, cholesterol and phospholipids
III. It is protein coated small vesicles
IV. Chylomicrons released from the epithelial cell into lacteals
(1) I and IV
(2) II and III
(3) I, II, III and IV
(4) None of the above
Gastric juice does not contain:
(1) Lipase
(2) Rennin
(3) Protease
(4) Amylase
Enterokinase is:
(1) A hormone that prevents the secretion of gastric juice
(2) An enzyme that activates the enzyme of pancreatic juice
(3) An enzyme that activates the proteolytic enzymes of succus entericus
(4) Hormone that prevents the secretion of pancreatic juice
The sphincter of Oddi is present between:
(1) Oesophagus and cardiac stomach
(2) Pyloric stomach and duodenum
(3) Hepatic duct and cystic duct
(4) Hepatopancreatic duct and duodenum
If for some reason the parietal cells of the gastric 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 be more effective
(4) Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones
What are the tiny finger-like projections called that are inside the small intestine? These tiny finger-like projections absorb the nutrients form the food and send the vitamins, minerals, proteins, carbohydrates and fats into our bloodstream:
(1) Esophagus
(2) Arteries
(3) Villi
(4) Flagella
How is the digestion of fats different from that of proteins and carbohydrates?
(1) Fat digestion occurs in the small intestine, and the digestion of proteins and carbohydrates occurs in the stomach
(2) Fats are absorbed into the cells as fatty acids and monoglycerides but are then modified for absorption into the blood; amino acids and glucose are not modified further
(3) Fats enter the hepatic portal circulation, but digested proteins and carbohydrates enter the lymphatic system
(4) Digested fats are absorbed in the large intestine, and digested proteins and carbohydrates are absorbed in the small intestine
The initial step in the digestion of milk in infants is carried out by?
(1) Lipase
(2) Trypsin
(3) Rennin
(4) Pepsin
What does food provide?
a. Energy
b. Organic material
c. Heat
d. More than one option is correct