Enzymes And Catalysts

Question 1

What is an enzyme?

Answer 1

A substance produced by a living organism, it is a protein and are made up of long chains of animo acids

Question 2

Catalyst

Answer 2

Speeds up a chemical reaction

Question 3

Active site of an enzyme

Answer 3

The site on an enzyme where reactants bind

Question 4

Factors affecting enzyme action

Answer 4

Temperature - high temperatures denature the enzyme, changing the shape of the active site
pH - can affect the shape of the active site of an enzyme and make it work very efficiently or stop it working

Question 5

Enzymes in digestion

Answer 5

Meat- protein-protease-Animo acids

Butter-fat-lipase-fatty acids + glycerol

Potatoes- starch-carbohydrates-glucose