Digestive system - part 1

What are the two main reasons we eat food?

• For fun and taste

• To spend time with family

• To obtain energy and raw materials

• To learn cooking skills

Which of the following is NOT a macromolecule?

• amino acid

• carbohydrate

• nucleic acid

• lipid

The digestive system is a closed system.

• true

• false

Which type of muscle tissue is this layer made of?

• skeletal

• cardiac

• smooth

• digestive

What does the digestive system primarily break down in food?

• Water and minerals

• Vitamins and nutrients

• Macromolecules into monomers

• Food coloring and additives

Which organ is not part of the alimentary canal?

• Small intestine

• Esophagus

• Stomach

• Liver

What is purpose of physical breaking down food & increasing its surface area?

• ensure more area comes into contact with digestive enzymes

• it tastes better

• you burn more calories in doing so

• it makes it easier to pass out of the body

Where does chemical digestion take place?

Where does mechanical digestion take place?

What is the main goal of digestion?

• To store food for future use

• To absorb nutrients into the blood

• To increase food temperature

• To make food taste better