Q. Define Digestion? Describe the various part of Alimentary
canal along with Functions?
Ans: Digestion:
Digestion is the process of breaking down food into smaller
molecules for the body to absorb and use as energy. It involves mechanical and chemical
processes in the digestive system, resulting in the absorption of nutrients and
elimination of waste.
Alimentary canal
The alimentary canal, also known as the digestive tract or
gastrointestinal tract, is a long tube that runs from the mouth to the anus. It
includes several parts, each with its specific functions in the process of
digestion, which are as follow:
|
Organ |
Function |
|
Mouth |
Chewing, mixing food; saliva production |
|
Esophagus |
Transporting food from mouth to stomach |
|
Stomach |
Mixing, churning food; releasing digestive enzymes |
|
Small Intestine |
Absorption of nutrients; digestion of food |
|
Liver |
Producing bile for fat digestion |
|
Pancreas |
Producing enzymes for carbohydrate, protein, and fat
digestion |
|
Gallbladder |
Storing and releasing bile into the small intestine |
|
Large Intestine |
Absorbing water, forming and eliminating waste |
|
Rectum |
Storing waste before elimination |
|
Anus |
Eliminating waste through the anal |
