B1 Enzymes

Question 1

Active Site

Answer 1

Area of an enzyme that “fits” in a particular substrate

Question 2

Enzyme-Substrate Rate Complex

Answer 2

When a substrate is fitted into the active site of an enzyme and can be acted upon (broken down)

Question 3

Denature

Answer 3

In the wrong conditions enzymes may break down affecting the shape of the active site

Question 4

How can increasing temp cause an enzyme to denature?

Answer 4

High temp starts to break the bonds which holds the enzyme together + causes the active sight to change shape

Question 5

Catalyst

Answer 5

Speeds up chemical reactions and is reusable (not used up in the reaction)

Question 6

Substrate

Answer 6

A substance that will be affected upon (broken down) by an enzyme

Question 7

Optimum Conditions

Answer 7

The conditions (temp + pH) at which an enzyme will work best

Question 8

What is pH?

Answer 8

A measure of acidity

Question 9

Lock and Key Model

Answer 9

An idea that substrates fit in the active sites of enzymes like key fits in locks

Question 10

Enzymes

Answer 10

Biological catalysts made from proteins that speed up biological reactions in the body