Carbon Cycle

Question 1

Name an organic molecule that carbon is found in.

Answer 1

Glucose, carbohydrates, lipids, DNA, and protein

Question 2

What molecule do trees get their carbon from?

Answer 2

Carbon dioxide

Question 3

Where do primary consumers get the carbon from?

Answer 3

Eating plants

Question 4

What process adds carbon to the atmosphere?

Answer 4

Respiration

Question 5

How does oxygen get into the water?

Answer 5

Photosynthesis, movement of water.

Question 6

What process removes carbon from the atmosphere?

Answer 6

Photosynthesis

Question 7

What do producers produce?

Answer 7

Glucose (carbohydrates)

Question 8

List three groups of producers

Answer 8

Plants, algae, and some bacteria

Question 9

Why are producers and consumers important to the carbon cycle?

Answer 9

They add (consumers) or remove (producers) carbon dioxide back to/from the atmosphere by performing cellular respiration (consumers) or photosynthesis (producers

Question 10

How does carbon get back into the atmosphere from the food we eat?

Answer 10

Cellular respiration.

Question 11

Where do secondary consumers get their carbon from?

Answer 11

Primary consumers (eating meat)

Question 12

Where does the carbon in an animal or plant go when the organism dies?

Answer 12

The soil - and is then recycled through decomposers

Question 13

Why should the amount of carbon in the atmosphere stay the same?

Answer 13

Photosynthesis and respiration should balance each other out

Question 14

How did extra carbon get into the atmosphere today?

Answer 14

Through the burning of fossil fuels in power stations and cars

Question 15

List three ways that we could reduce the extra carbon that is getting into the atmosphere.

Answer 15

Plant trees, use fewer fossil fuels, use more alternative/renewable energy, remove carbon dioxide from power plant/exhaust omissions, conserve electricity, electric cars, etc.

Question 16

What kind of organism sequesters the most carbon from the atmosphere?

Answer 16

Plants

Question 17

By what method is the majority of carbon moved from the lithosphere to the atmosphere?

Answer 17

Fossil Fuels

Question 18

True or false, is the ocean floor one of the major carbon stores on Earth?

Answer 18

False.

Question 19

How do organisms move carbon through the carbon cycle?

Answer 19

Respiration, decomposition, sedimentation, and photosynthesis

Question 20

Where does all the carbon in organisms originate from?

Answer 20

Earth’s atmosphere

Question 21

If a forest fire occurs, what will happen to the carbon in the forest?

Answer 21

It will go into the atmosphere.

Question 22

In the carbon cycle, animals can release carbon back into the cycle through __________ or through __________.

Answer 22

respiration . . . decomposition

Question 23

Humans burn fossil fuels and wood, releasing carbon dioxide into the atmosphere. This carbon dioxide is then absorbed by trees for photosynthesis. These processes are contributory to which chemical cycle?

Answer 23

The carbon cycle

Question 24

How does the human body return carbon to the atmosphere in the carbon cycle?

Answer 24

Cellular respiration

Question 25

What do the respiratory system and cellular respiration have in common?

Answer 25

Oxygen plays a key role in both.

Question 26

What are the chemical products of cellular respiration?

Answer 26

Carbon dioxide, water, and ATP

Question 27

(Fill in the blank) ATP is to your cells as ______ is to a car.

Answer 27

Gasoline.

Question 28

Which cells in your body undergo cellular respiration?

Answer 28

Every cell in your body.

Question 29

How does your body get rid of the carbon dioxide produced by cellular respiration?

Answer 29

Through your lungs.

Question 30

In which organelles does cellular respiration take place?

Answer 30

Mitochondria.

Question 31

Which produces more energy, aerobic respiration or fermentation?

Answer 31

Respiration.

Question 32

How do we get the glucose we need to power our cells?

Answer 32

Eating.

Question 33

In fermentation, what do cells use instead of oxygen to break down glucose?

Answer 33

Carbon dioxide.

Question 34

What’s one major reason human cells have evolved to depend on aerobic, and not anaerobic, respiration?

Answer 34

Aerobic respiration produces more energy than anaerobic respiration.

Question 35

Where can you find carbon?

Answer 35

Inside every living thing on this earth.

Question 36

How is the carbon cycle similar to the water cycle?

Answer 36

Both involve the transfer of substances between animals, plants, and the earth

Question 37

How do animals add carbon dioxide to the atmosphere?

Answer 37

Through breathing

Question 38

What organisms in the ocean absorb the most carbon dioxide?

Answer 38

Algae and marine plants

Question 39

What is a carbon sink?

Answer 39

Something that removes carbon from the atmosphere

Question 40

Which of these historical events led to a major imbalance in the carbon cycle.

Answer 40

The Industrial Revolution.

Question 41

Using fewer fossil fuels could help restore equilibrium to the carbon cycle. What does “equilibrium” mean?

Answer 41

Balance.

Question 42

How does carbon become locked inside the earth?

Answer 42

The carbon-rich bodies of plants and animals decay into the earth after they die.

Question 43

How do carbon emissions lead to global warming?

Answer 43

By trapping the sun’s heat in the atmosphere.