nutrition in humans

Question 1

Digestion

Answer 1

Digestion is the process by which large, insoluble food molecules are broken down into small, soluble and diffusible molecules that can be absorbed by the body cells.

Question 2

Physical digestion

Answer 2

Physical digestion is the mechanical break up of food into smaller parts to increase surface area to volume ratio to speed up enzyme action.

Question 3

Chemical digestion

Answer 3

Chemical digestion is a process whereby enzymes digest large, insoluble food molecules into smaller, soluble molecules that can be absorbed into body cells.

Question 4

Absorption

Answer 4

Absorption is the process where digested food substances such as glucose and amino acids are taken into the body cells.

Question 5

Assimilation

Answer 5

Assimilation is the process where some of the absorbed food substances are converted into new protoplasm or used to release energy.

Question 6

Egestion

Answer 6

Egestion if the removal of undigested matter from the body