Most of the digestion occurs in
4. small intestine
Which one of the following pairs of food components in humans reaches the stomach totally undigested?
1. Protein and starch
2. Starch and fat
3. Fat and cellulose
4. Starch and cellulose
The portion of human stomach into which the oesophagus opens is the:-
To move into the intestinal mucosa, fatty acids and glycerol are first incorporated into:
What regulates the opening of oesophagus into the stomach?
1. A membranous valve
2. A muscular sphincter
3. A mesodermal septum
4. A cartilaginous flap