Match each item with the correct description.

1. releases bile to break down fat
lungs
2. helps break down protein
large intestine
3. remove carbon dioxide from the body
saliva
4. breaks down starch into sugar
small intestine
5. absorbs nutrients into the blood
liver
6. absorbs extra water from undigested food
pancreas

1.releases bile to break down fat

pancreas

2.helps break down protein

liver

3.remove carbon dioxide from the body

lungs

4.breaks down starch into sugar

saliva

5.absorbs nutrients into the blood

small intestine

6.absorbs extra water from undigested food

large intestine

Explanation:

The main functions of saliva is digestive function: moisturizes and softens the morsel; the saliva contains the enzyme ptialin that breaks some starches down into maltose and dextrin.

The large intestine is the largest internal organ; its role is the absorption of food, nutrients and water.

Hepatic Cells - Hepatocytes have many metabolic functions that enable them to have a rich blood supply.All hepatocytes participate in metabolism. processing of proteins, fats, carbohydrates, bile color - bilirubin, bile acids, vitamins, minerals and some hormones. Food proteins broken down to their constituents - amino acids, are used by the liver as a building material for the synthesis of its own proteins and plasma proteins, which have different vital functions in the body.

In the small intestine, digested food is converted to liquid and goes to blood.

Pancreas secretes the enzymes amylase and lipase (which are mainly used to dissolve fats) and participates in the chemical breakdown of food to absorb molecules into the blood.

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.