5- enzymes

Question 1

catalyst

Answer 1

substance that increases the rate of reaction and is not changed by the reaction.

Question 2

enzyme

Answer 2

biological catalyst, made up of protein that speed up reactions by lowering activation energy.

Question 3

catalase

Answer 3

enzyme that breaks down hydrogen peroxide (toxic)

to water and oxygen.

Question 4

properties of enzymes

Answer 4

proteins, catalysts, specific, have active sites complementary to their substrate, have optimum temperature and pH, denatured by extreme temperature or pH`

Question 5

lock and key theory

Answer 5

The enzyme is like a lock and the substrate is the key that fits it.