Question

Write short notes on
(a) absorption of the digested food (b) assimilation
(c) defaecation (d) role of liver in metabolism

Answer 1

Answer:

a) absorption is the process by which simple molecules of digested food are taken into the blood through the intestinal wall

b) assimilation is utilisation of absorbed nutrients by the body cells for energy and synthesis of new protoplasm

c) defecation is the removal of undigested solid part of the food in the form of faeces

d) I don't know

Answer 2

Explanation:

(a) absorption of the digested food - In the small intestine, digested food molecules are absorbed. This means they're going through the small intestine wall and into the bloodstream. Once there, the molecules of digested food are transported around the body to where they are needed.

(b) assimilation - Assimilation refers to the passage of molecules from digested food into cells in the body where they are used. For example, glucose is transferred to cells during the assimilation process and used for breathing and energy supply.

(c) defaecation - Defecation is the final act of digestion through which organisms extract solid, semi-solid and liquid waste material through the anus from the digestive tract.

(d) role of liver in metabolism - In all metabolic processes in the body, the liver plays a central role. The liver cells break down fats and generate energy in fat metabolism and also produce around 800 and 1,000 ml of bile a day.