Which of the following statement is not correct?

1. Brunner's glands are present in the submucosa of stomach and secrete pepsinogen
2. Goblet cells are present in the mucosa of intestine and secrete mucus
3. Oxyntic cells are present in the mucosa of stomach and secrete HCI
4. Acini are present in the pancreas and secrete carboxypeptidase

About what percentage of starch is hydrolysed by salivary amylase into maltose?
1. 30 – 40
2. 50 – 60
3. 60 – 70
4. 90 – 100

The muscular activities of different parts ofthe alimentary canal can also be moderated by neural mechanisms that involve:
I. local mechanisms
II. through CNS

1. I only
2. II only
3. Both I and II
4. Neither I nor II

Around 60 – 70 % of starch is broken down to maltose in the duodenum by:
1. pancreatic amylase
2. trypsin
3. maltase
4. salivary amylase

Identify the correct statement:
1. Cabohydrate digestion begins in the stomach
2. Polsaccharides are broken down to monosaccharides by amylase
3. Disaccharides are actively transported across the epithelium of the small intestine
4. Final luminal digestion of carbohydrates produces monosaccharides

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

Identify the correct statement regarding lipid digestion and absorption:
1. Most lipids are asorbed without digestion as they are not macromolecules
2. The products of lipid digestion are resynthesized into triglycerides in intestinal epithelial cells
3. The products of lipid digestion diffuse into capillaries in the vicinity of the intestinal epithelium
4. The products of lipid digestion travel in the circulatory system in the form of micelles