Absorption of Food

Which of the following statements are true regarding digestion and absorption of food in humans> Oxyntic cells in our stomach secrete the proenzyme pepsinogen. Fructose and amino acids are absorbed by simple diffusion. About 30% of starch is hydrolysed by salivary amylase in our mouth.

Which of the following statements is/are incorrect regarding digestion and absorption of food in human beings : (a) About 90% of starch is hydrolysed by salivary amylase in our oral cavity (b) Entero-endocrine cells in our stomach secrete the proenzyme trypsinogen (c) Vitamin-D is produced in human body in skin (d) Bile salts act as activator of pancreatic lipase

Absorption of digested food chiefly occurs in-

Absorption of digested food chiefly occurs in -

The following statements are based on the digestion and absorption of food. Select the correct and incorrect statements and choose an option accordingly from the codes given below. I. Active absorption of monosaccharides in the stomach and jejunum is carried out by facilitated transport. II. Most of the amino acids (above 95%) are absorbed in the duodenum and jejunum parts of the small intestine. III. Food is digested completely before absorption and is used by the body tissues. IV. Absorption of water from the small intestine is concerned with the absorption of salts and digested food in order to maintain an osmotic balance with the blood.

Read the assertion and reason carefully to mark the correct option out of the option given below: Assertion: Absorption of digested food mainly occurs in the stomach. Reason : Stomach produces the hormone gastrin and the intrisic factor and it liquifies ingested food.

Read the following statements and select the correct option. Statement 1 : The human small intestime is the longest portion in the alimentary canal. Statement 2: Absorption of digested food requires a very large surface area.

Occlusion is the absorption of a