Chp 5

Question 1

Catalyst

Answer 1

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

Question 2

Enzymes

Answer 2

Biological catalyst
Proteins

Question 3

Properties of enzymes

Answer 3

• can be used repeatedly
  Speed up
  The rate of chemical reactions

Question 4

Enzyme action

Answer 4

The substance on which an enzyme works is called its substrate

Question 5

What are the names of the molecules produced

Answer 5

Products

Question 6

What’s the part that combines with a substrate called

Answer 6

Active site

Question 7

Active site shape

Answer 7

Fits like a lock and key
Enzymes have an active site that only fits with them

Question 8

Rise in temperature

Answer 8

Increase enzyme activity will rise until an optimum level which is temperature above 50 degrees

Question 9

Why do enzymes denature

Answer 9

And stop functioning because most of them are proteins and when protein it’s structure is altered . Changes shape and can no longer connect to its substrate

Question 10

How does the enzyme pH work

Answer 10

Each enzyme should have its on pH that it works it’s best in the stomach it’s more acidic and in the the most neutral

Question 11

What happens if the pH increases or decreases to much

Answer 11

The enzyme activity will slow and eventually stop