Macromolocules

Large orgainc molecules, called polymers

What are macromolecules made up of?

Monomers

What are some examples of macromolecules?

carbohydrates

lipids

proteins

nucleic acids

What are the functions of the digestive system?

Chemically and mechanically break down food

Absorb nutrients

What is the homeostatic role?

Supply energy for life's activities

What are the stages of food processing?

1) Ingestion-eating

2) Chewing- marcomolecules in foods are too large to be absorbed by the digestive system and must be broken down into small molecules to be absorbed and used by the body

3)Absorbtion- cells lining the digestive cavity take building blocks that enter blood stream.

4) Elimination- undigested food material are dicharged from body

What are carbohydrates?

Small sugar molecules

What are carbohydrates used for?

Energy storage

What is a monosaccharied?

1 sugar unit

What is a disaccharide?

2 sugar units

What are polysaccharides?

3+ sugar units