5.1 Enzymes

Question 1

What is an Enzyme?

Answer 1

Proteins that help speed up chemical reactions.

Question 2

What is a substrate?

Answer 2

A surface where an Enzyme can act.

Question 3

What is an active site?

Answer 3

Where the substrate connects to the enzyme.

Question 4

What is rate of reaction?

Answer 4

How fast and how many reactions occur.

Question 5

what is activation energy?

Answer 5

The amount of energy that is used for a reaction to occur.

Question 6

What are the properties of enzymes?

Answer 6

-Reaction specific
-Not consumed in reaction
-Made of protein
-Affected by cellular conditions

Question 7

Enzyme concentration

Answer 7

The more enzymes the more successful collisions. Too many enzymes and you may run out of substrate.

Question 8

Substrate concentration

Answer 8

The more substrate the more successful collisions until there’s not enough enzymes.

Question 9

Temperature

Answer 9

As it gets hotter the particles move faster and the reaction rate increases but if it gets too hot reactions decrease.

Question 10

pH

Answer 10

Optimal pH, just like temperature, anywhere around the optimal pH is where reactions decrease.