The Digestive System

Please write your full name (first and last)

An enzyme is a

Enzymes are used by the body to

• Break down food into smaller pieces

• Melt food

• Break down food into smaller molecules

• Release energy from food

Why do food molecules need to be broken down?

• To make them release energy

• So that they are small enough to pass through membranes

• So that they can be absorbed by the blood

• So that we can excrete them

What is the name for the substance an enzyme will break down

• Active site

• Particle

• Globule

• Substrate

What is the name for the place that a substrate will attach to the enzyme

• Active site

• Particle

• Globule

• Substrate

Which enzyme breaks down starch?

• Pepsin

• Amylase

• Lipase

• Carbohydrase

Which enzyme breaks down protein?

• Carbohydrase

• Amylase

• Lipase

• Protease

Which enzyme breaks down lipids?

• Carbohydrase

• Lipase

• Pepsin

• Protease

What are lipids broken down into?

• Fatty acids and glycerols

• Glucose

• Ammino acids

• Carbohydrates