Digestion Intro Notes

What is the main purpose of food?

• To provide nutrients for the blood

• To provide materials for cell growth and tissue repair

• To provide energy for the body

• To help eliminate waste from the body

What are the functions of the digestive system?

• Breaks down food into molecules the body can use

• Pumps blood throughout the body

• Helps eliminate waste from the body

• Provides energy for the body

What is mechanical digestion?

• Chemicals produced by the body break foods into their smaller components

• Food is physically broken down into smaller pieces

• Food is absorbed into the blood

• Food is eliminated from the body

What is chemical digestion?

• Food is physically broken down into smaller pieces

• Food is absorbed into the blood

• Food is eliminated from the body

• Chemicals produced by the body break foods into their smaller components