The Carbon Cycle

Question 1

What happens in the carbon cycle?

Answer 1

• CO2 is remove from the environment for photosynthesis
• The carbon from the carbon dioxide is used to make carbohydrates, fats and proteins
• When green plants + algae respire, some of this carbon becomes CO2 and is released into the atmosphere
• When the plants are eaten by animals (and these animals re eaten by animals) some of the carbon becomes part of the fats + proteins that make up their body
• When animals respire, some of this carbon becomes CO2 and is released into the atmosphere
• When plants, algae and animals die, some animals and microorganisms feed on their body

Question 2

What removes the CO2 from the environment and what for?

Answer 2

Green plants and algae

For photosynthesis

Question 3

What is produced in the carbon cycle and makes up the body of plants and algae?

Answer 3

Carbohydrates
Fats
Proteins

Question 4

What do the microorganisms and detritus feeders do?

Answer 4

• Brake down waste product and dead bodies in ecosystems

- Cycled all the materials as plant nutrients

Question 5

After they have done this what happens?

Answer 5

All the energy originally absorbed by the green plants and algae will have been transferred

Question 6

What releases CO2 into the atmosphere?

Answer 6

Combustion of wood and fossil fuels