The carbon cycle

Question 1

What are the processes involved in the carbon cycle?

Answer 1

-photosynthesis
-respiration
-consumption,
-decomposition,
-combustion

Question 2

What is the photosynthesis equation?

Answer 2

Photosynthesis = 6CO2 + 6H2O —> C6H 12O6 +6O2

Question 3

What is the respiration equation?

Answer 3

Respiration = C6H12O6 +6O2 —> 6CO2 +6 H2O

Question 4

Why is carbon important?

Answer 4

• Main component of all living cells
  -Component of fuel 

Question 5

Photosynthesis

Answer 5

-Plants take in water from the soil through their roots
-CO2 comes from the air in through the leaves
-They use sunlight energy to rearrange these into their own molecules of glucose 

Question 6

Respiration

Answer 6

A chemical reaction releases energy (in the form of ATP)

Question 7

Consumption

Answer 7

-Organisms eat plants/other animals
-They digest it and use it to make molecules 

Question 8

Decomposition

Answer 8

-Decomposers breakdown dead material and respire to release CO2 e.g. bacteria and fungi

Question 9

Combustion

Answer 9

Burning fossil fuels, releases CO2

Question 10

Why are carbon dioxide levels rising?

Answer 10

-Combustion – burning fossil fuels, cars
-Deforestation – cutting down trees, using the spare space for houses

Question 11

How can we reduce global warming?

Answer 11

• Plant trees
• Drive less
  -Switch to renewable energy 

Question 12

What is the only process in the carbon cycle that removes carbon dioxide from the atmosphere?

Answer 12

Photosynthesis

Question 13

Which three groups of living organisms respire in the carbon cycle?

Answer 13

Plants, animals, bacteria, and fungi

Question 14

Decomposers breakdown, dead organic material into small soluble molecules. Give two different uses for these molecules.

Answer 14

-Taken up by plant roots
-Release CO2 into the atmosphere