Nitrogen & Carbon Cycle

Question 1

Describe the stages of the nitrogen cycle

Answer 1

1. Animals get nitrogen from the plants/animals that have fed on the plants.
2. Decomposers (bacteria and fungi) break down the dead plants and animals to release the N trapped inside.

3.

Question 2

Describe the stages of the carbon cycle

Answer 2

1. photosynthesis
   - plants produce glucose and co2 from sunlight, oxygen is made as a by product
2. respiration
   - food is broken down to release energy in a useable form.
3. ## combustion

Question 3

What are the different compounds of N in plants?

Answer 3

nitrate (NO3), ammonia (NH3) and urea (NH2)2

Question 4

Where is the nitrogen fixing bacteria found?

Answer 4

In soils and the roots of legumes.