Enzymes and Their Functions

What is the specific area in an enzyme where substrates bind?

• Active site

• Inactive site

• Binding site

• Catalytic site

What happens to the active site of an enzyme when a substrate binds?

• It becomes smaller

• It becomes larger

• It remains the same

• It changes shape

What is the resulting item when substrates bind and are acted upon by an enzyme?

• Substrate

• Enzyme

• Product

• Catalyst

Which enzyme is responsible for breaking down lactose into smaller parts?

• Lipase

• Amylase

• Protease

• Lactase

What is the term used for substances that bind to enzymes and help them in their function?

• Substrates

• Cofactors

• Coenzymes

• Products

What happens to an enzyme when it is exposed to an environment outside its ideal pH or temperature range?

• It becomes denatured

• It becomes more active

• It becomes inactive

• It becomes larger

Which enzyme breaks down lipids?

• Lipase

• Amylase

• Protease

• Lactase

Which enzyme breaks down starch?

• Lipase

• Amylase

• Protease

• Lactase

Which enzyme breaks down proteins?

• Lipase

• Amylase

• Protease

• Lactase

What is the term used for the shape of an enzyme becoming distorted and unable to bind to its substrate?

• Denatured

• Activated

• Inhibited

• Catalyzed