Match the following enzyme with their sources:

Bromelain

• milk

• papaya

• pineapple

• stomach of calves

Match the following enzyme with their sources:

Papain.

• milk

• papaya

• pineapple

• stomach of calves

Match the following enzyme with their sources:

Rennin

• milk

• papaya

• pineapple

• stomach of calves

A catalyst _____.

• is a reactant

• is a product

• speeds up a chemical reaction

Enzymes are _____.

• hormones

• proteins that start chemical reactions

• changed by enzymatic reactions

The substance on which an enzyme acts is the _____.

• active site

• coenzyme

• substrate

A substrate attaches to an enzyme at the _____.

• active site

• coenzyme

• catalyst

Which of the following can act as a coenzyme?

• Bromelain.

• B vitamins.

• Pepsin

_____ is the naming system for enzymes.

• Catalyst

• Nomenclature

• Substrate

Which factor does not prevent enzymes from working?

• Heat.

• Acid.

• Salt.

• Water.