HUMAN NUTRITION

NUTRITION

DIGESTIVE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What happens to unused food materials in the digestive system?
A
They are stored in the rectum and released through the anus
B
They are recycled back to the stomach to get reprocessed
C
There are no unused materials, the digestive system absorbs all food nutrients
D
They are stored in the large intestine until we need them
Explanation: 

Detailed explanation-1: -Unused materials are discarded as faeces (poo). Other organs that form part of the digestive system are the pancreas, liver and gallbladder.

Detailed explanation-2: -The waste products of the digestive process include undigested parts of food and older cells from the GI tract lining. Muscles push these waste products into the large intestine. The large intestine absorbs water and any remaining nutrients and changes the waste from liquid into stool.

Detailed explanation-3: -After food leaves your small intestine, contractions push any food that remains in your digestive tract into your large intestine. Water, minerals, and any nutrients are then absorbed from your food. The leftover waste is formed into a bowel movement.

There is 1 question to complete.