Unit 2 (Matter & Energy)

Question 2

What are the 2 reactants in cellular respiration?

Answer 2

glucose and oxygen

Question 3

Besides energy (in the form of ATP) what are the products of cellular respiration?

Answer 3

carbon dioxide and water

Question 4

Where does cellular respiration take place?

Answer 4

In mitochondria

Question 5

The process of making carbon containing molecules using light energy is called…

Answer 5

Photosynthesis

Question 6

Where does photosynthesis take place?

Answer 6

chloroplasts

Question 7

What are the reactants in photosynthesis?

Answer 7

Carbon dioxide and water (along with sunlight)

Question 8

What are the products of photosynthesis?

Answer 8

Oxygen and glucose molecules

Question 9

All the chemical activities and changes that take place in an organism for its growth and development is called…

Answer 9

Metabolism

or Metabolic Processes

Question 10

All matter contains energy. (True or False)

Answer 10

TRUE!!!

ALL MATTER CONTAINS ENERGY!!!

Question 11

What are the basic building blocks of matter?

Answer 11

Atoms

Question 12

What holds atoms together to form molecules?

Answer 12

Chemical bonds

Question 13

Type of chemical reaction that releases heat.

Answer 13

Exothermic Reaction

Exo–goes out

thermic–heat

Question 14

What are the molecules present at the BEGINNING of a reaction called?

Answer 14

reactants

Question 15

Chemical reactions that absorb heat from their surroundings are called…

Answer 15

Endothermic

Endo–in (brings in)

thermic (heat)

Question 16

What is another name for “stored energy?”

Answer 16

Potential energy

Question 17

Active energy or “energy of motion” is called…

Answer 17

Kinetic energy

Question 18

What is the principle of “conservation of energy?”

Answer 18

Energy is not created or destroyed - only changed in form.

Question 19

What substances help chemical reactions take place by reducing the amount of energy it takes to start them?

Answer 19

Enzymes

Question 20

The amount of energy required to raise the temperature of 1g of water 1 degree Celsius

Answer 20

a calorie

Question 21

1000 calories

Answer 21

1 kilocalorie

or 1 Calorie (note the capital “C”)

Question 22

Process by which your cells release energy from the food that you eat (glucose) and the oxygen that you breathe in…

Answer 22

cellular respiration

Question 23

The chemical reaction diagramed below is called…

Answer 23

Cellular Resperation

Question 24

The substance needed (@ #1) to release energy from glucose is called…

Answer 24

Oxygen

Question 25

The two products (#’s 2 & 3) of cellular resperation are

Answer 25

Water & Carbon Dioxide

Question 26

The molecule (#4 below) that is released by the process of cellular resperation is called…

Answer 26

ATP

Adenosine Triphosphate

Question 27

The diagram below is the cellular process of …

Answer 27

Photosynthesis

Question 28

During photosynthesis, what is absorbed by the roots of plants? (A on the diagram below)

Answer 28

4. Water

Question 29

Letter (B) below, the location in the plant where photosynthesis takes place is called the…

Answer 29

7. Chloroplast

Question 30

What is given off (C) as a by-product of photosynthesis?

Answer 30

1. Oxygen

Question 31

The equation below shows the chemical reaction for what process?

Answer 31

Cellular Resperation

Question 32

What process is shown by the chemical reaction below?

Answer 32

Photosynthesis