Carbon cycle and Nitrogen Cycle Notes & graphic organizers ­ Dion 2016.notebook

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March 17, 2016

Mar 13­7:34 PM

Nutrient Cycles:

Carbon, Nitrogen & PhosphorusBiology Georgia Performance Standards

SB4b. Explain the flow of matter and energy through ecosystems by:

> Explaining the need for cycling of major nutrients (C, H, O, N, and P).

Created By: Christy Dion

Mar 13­7:34 PM

Carbon Cycle:Processes Which Transfer Carbon

• Photosynthesis ­ plants converting sunlight, water, and CO2 into energy (glucose).

• Respiration ­ organisms creating energy (ATP) by converting glucose and oxygen.

• Consumption ­ organisms consuming other organisms.• Decomposition ­ organisms decaying after they die.• Combustion ­ burning of fossil fuels.• Weathering ­ rocks break down and release carbon.• Dissolve/Vaporize ­ between ocean and atmosphere.

Mar 13­7:34 PM

The Carbon Cycle Explained

Carbon Cycle GO

Carbon Cycle Answers

Carbon (CO2) in Atmosphere

Cell Respiration

PhotosynthesisCell

Respiration

Consuming

Decomposition

Fossil Fuel

Emissions

Fossil Fuels

Dead organisms & wastes

Human Extraction of fossil fuels

Mar 13­7:34 PM

Nitrogen Cycle:Processes that Transfer Nitrogen

• Denitrification ­ the loss or removal of nitrogen or nitrogen compounds; specifically : reduction of nitrates or nitrites commonly by bacteria (as in soil) that usually results in the escape of nitrogen into the air.

• Nitrogen fixation ­ is a process in which nitrogen (N2) in the atmosphere is converted into ammonia (NH3).

• Fertilizers (contain nitrogen)• Ammonification ­ is the process by which the organically bound nitrogen of microbial, plant, and animal biomass is recycled after their death.

• Decomposition ­ break down of organisms after death.

Carbon cycle and Nitrogen Cycle Notes & graphic organizers ­ Dion 2016.notebook

2

March 17, 2016

Mar 13­7:34 PM

Nitrogen Cycle Explained

Nitrogen cycle GO

Nitrogen Cycle Answers

**Chemical Fertilizers Add Nitrogen to the Soil to help plants**

Denitrification Plants can absorb both nitrats & ammonia

Decomposition

Decomposers

Ammonia (NH3)

Nitrogen fixing bacteria in nodules on plant roots

Ammonification

Nitrogen fixationBacteria in soil

Nitrogen fixing bacteria in soil

NitrificationNitrate (NO3)

Nitrites (NO2)

Mar 1­1:15 PM

The Phosphorus Cycle Explained

Mar 1­1:15 PM

Explain the Phosphorus Cycle

In 2­3 sentences explain how phosphorus moves through the environment.

Mar 13­8:38 PM

SummaryFor the carbon, nitrogen and phosphorus cycle explain how humans influence or contribute to each cycle.