Concept 1 Unit 3 Enzymes

Question 1

Why do you feel sluggish when you have a fever?

Accepted Answer

The fever has damaged your enzymes.

Question 2

When a reactant(s) joins up with an enzyme, we call the reactant a..

Accepted Answer

substrate

Question 3

Rusting Iron is an example of...

Accepted Answer

a chemical reaction

Question 4

All of the chemical reactions in our body make up our...

Accepted Answer

metabolism

Question 5

This is an example of what kind of reaction?

Accepted Answer

Endothermic

Question 6

Sometimes a reaction must absorb energy to happen. An example is?

Accepted Answer

Photosynthesis

Question 7

What is on the RIGHT of the equation?

Accepted Answer

the products

Question 8

If enzymes are a type of catalyst, then enzymes ___ activation energy & ___ up reactions

Accepted Answer

lower; speed

Question 9

Things that throw off our metabolism can affect our ability to keep homeostasis.

Accepted Answer

True

Question 10

Enzymes are involved in many important bodily functions, such as...

Accepted Answer

digestion

Question 11

Enzymes are a type of ___ that work as a ___ to speed up reactions in our body.

Accepted Answer

protein; catalyst

Question 12

After an enzyme catalyzes a reaction, it...

Accepted Answer

is unchanged and can be recycled

Question 13

The Products are....

Accepted Answer

D

Question 14

Chemical reactions are represented by equations. The reactants are on the LEFT of the equation.

Accepted Answer

True

Question 15

This enzyme would be good for digesting...

Accepted Answer

whole grain bread

Question 16

What is the reaction for Photosynthesis

Accepted Answer

6CO6+6H2O --> C6H12O6+6O2

Question 17

Enzymes are a type of...

Accepted Answer

protein

Question 18

A process that forms new chemical substances or breaks down a chemical substance is...

Accepted Answer

a chemical reaction

Question 19

The reactants are....

Accepted Answer

E

Question 20

T/F Enzymes are specifically shaped to fit with many types of substrate.

Accepted Answer

FALSE

Question 21

ALL chemical reactions require a little energy to get STARTED. This is called the...

Accepted Answer

activation energy

Question 22

Each enzyme works best at a particular temperature and pH.

Accepted Answer

True

Question 23

In living organisms, catalysts are called ENZYMES.

Accepted Answer

True

Question 24

Flour is to Reactants as Electric Mixer is to ________.

Accepted Answer

Enzymes

Question 25

Enzymes can be changed/damaged by...

Accepted Answer

both temperature and pH

Question 26

A CATALYST is a molecule that speeds up a chemical reaction by LOWERING the activation energy.

Accepted Answer

True

Question 27

When the temperature or pH goes out of the enzyme's working range, the enzyme denatures, or ...

Accepted Answer

stops working

Question 28

Some reactions ______ energy, usually as heat or light, when they happen.

Accepted Answer

release

Question 29

What changes the rate of a reaction by creating more particle collisions?

Accepted Answer

Substrate Concentration

Question 30

T/F: Some chemical reactions build things up, and some reactions break things down.

Accepted Answer

TRUE

Question 31

In this example, the enzyme is...

Accepted Answer

amylase

Question 32

A is ....

Accepted Answer

Activation Energy

Question 33

What changes the rate of a reaction by competing with the substrate?

Accepted Answer

Competitive Inhibitor

Concept 1 Unit 3 Enzymes

Questions 33

Concept 1 Unit 3 Enzymes

Questions 33