Enzymes

Question 1

catalyst

Answer 1

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

Question 2

enzymes

Answer 2

proteins that are involved in all metabolic reactions, they function as natural catalysts

Question 3

amylase

Answer 3

catalyses the breakdown of starch to maltose

Question 4

protease

Answer 4

breakdown of protein to amino acids

Question 5

catalase

Answer 5

breakdown of hydrogen peroxide to water and oxygen

Question 6

carbohydrases

Answer 6

breakdown carbohydrates

Question 7

lipases

Answer 7

breakdown lipids

Question 8

maltase

Answer 8

catalyses the breakdown of maltose to glucose

Question 9

sucrase

Answer 9

breaks down sucrose

Question 10

substrate

Answer 10

the substance that causes the enzymes to react

Question 11

active site

Answer 11

the part of an enzyme molecule to which substrate temporarily binds

Question 12

complementary

Answer 12

with a perfect mirror-image shape

Question 13

Product

Answer 13

the new substance formed by a chemical reaction

Question 14

enzyme-substrate complex

Answer 14

the short-lived structure formed as the substrate binds temporarily to the active site of an enzyme

Question 15

specificity

Answer 15

of enzymes only able to act on a particular substrate.

Question 16

Optimum

Answer 16

best/ most suitable