*Unit 2 Part 2: Enzymes

Question 1

Activation energy

Answer 1

The energy input needed to begin a reaction

Question 2

When chemical reactions release energy, that is known as _____.

Answer 2

exothermic

Question 3

When chemical reactions absorbs energy, that is known as _____.

Answer 3

endothermic

Question 4

Reactants are converted to _____.

Answer 4

products

Question 5

Chemical reactions are making and breaking _____.

Answer 5

bonds

Question 6

Enzymes control…

Answer 6

reactions that occure inside cells.

Question 7

Catalysts

Answer 7

Speed up reactions by lowering activation energy

Question 8

Each enzyme has an _____ with a specific shape to interact with its _____.

Answer 8

active site; substate

Question 9

What are enzymes made of?

Answer 9

Proteins

Question 10

Is the following statement true or false?
Enzymes are changed by the chemical reaction.

Answer 10

False

Question 11

Each enzyme controls how many specific reactions?

Answer 11

1

Question 12

How are enzymes named?

Answer 12

For their reaction

Question 13

What does lactase break down?

Answer 13

Lactose sugar in milk

Question 14

Is the following statement true or false?
Every enzyme has optimal conditions for functioning

Answer 14

True

Question 15

Enzymes are affected by _____ and _____.

Answer 15

temperature; pH

Question 16

At extreme conditions, enzymes are _____.

Answer 16

denatured

Question 17

Once denature, an enzyme can…

Answer 17

no longer work again.

Question 18

Denature

Answer 18

Structure of an enzyme changes so the enzyme no longer functions