Enzymes Quiz

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

• Binding site

• Active site

• Catalytic site

• Inactive site

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

• It can change its shape

• It becomes smaller

• It remains unchanged

• It becomes larger

What is the resulting item when substrates bind to an enzyme?

• Enzyme-substrate complex

• Product

• Catalyst

• Substrate

Which enzyme breaks down lactose into smaller parts?

• Protease

• Lactase

• Amylase

• Lipase

What is the term for enzymes that often end in -ase?

• Catalysts

• Substrates

• Coenzymes

• Cofactors

What happens to an enzyme when it becomes denatured?

• It becomes inactive

• It loses its active site

• It breaks down into smaller parts

• Its shape becomes distorted

What is the ideal pH for an enzyme in the stomach?

• Neutral

• Basic

• Very acidic

• Slightly acidic

Which enzyme breaks down lipids?

• Amylase

• Lipase

• Lactase

• Protease

Which enzyme breaks down starch?

• Lipase

• Lactase

• Amylase

• Protease

Which enzyme breaks down proteins?

• Lactase

• Lipase

• Amylase

• Protease