Natural nutrient cycles
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Natural (Nutrient) Cycles. C, N, and P -macronutrients (we need a relatively large amount). Carbon Cycle - 5 processes. Respiration -vs- Photosynthesis Decomposition Waste Removal Combustion Metabolism in Organisms Carbohydrates - plants, some animal

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Natural (Nutrient) Cycles

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Natural nutrient cycles

Natural (Nutrient) Cycles

C, N, and P

-macronutrients

(we need a relatively large amount)


Carbon cycle 5 processes

Carbon Cycle- 5 processes

  • Respiration -vs- Photosynthesis

  • Decomposition

  • Waste Removal

  • Combustion

  • Metabolism in Organisms

    • Carbohydrates - plants, some animal

    • Proteins - animals, some plants (peanuts)

    • Lipids - animals, some plants (oils)

    • Nucleic Acids - all cells (DNA, ATP)


Photosynthesis

Photosynthesis

Carbon “moves” from the atmosphere as carbon dioxide

(CO2) to Plants as sugar (C6H12O6).


Photosynthesis1

Photosynthesis


Respiration

Respiration

  • What happens in respiration?

    • Oxygen - is “gotten” (breathing, for

    • example)

    • Sugar - is obtained(made - plants, eaten -

  • animals)

    • Blood - carries O2 & sugar to all

    • cells

    • Cells - absorb O2 & sugar by

    • diffusion

    • Mitochondria - Makes Energy

    • CO2 - is exhaled/released as waste


Decomposition break down of dead organic matter

Decomposition- break down of dead organic matter


Decomposition

Decomposition


Metabolism all the chemical reactions in an organism

Metabolism- all the chemical reactions in an organism


Combustion burning of organic material

Combustion - burning of organic material.


Carbon cycle overview

Carbon Cycle Overview


Nitrogen cycle

Nitrogen Cycle

Importance?

  • Animal and Plants need it (Protein/Nucleic Acid)

  • Plants (and animals) can’t use N gas!

    Processes - that put N into a usable form.

    Takes place in the Atmosphere & Lithosphere.

  • In Air: Lightning strikes convert N into a usable form

  • Nitrogen Fixation (by bacteria in soil)

    • In soil: Some Bacteria in symbiosis with Legumes

    • In soil: Some bue-green Algae in soil


Nitrogen cycle overview

Air

Nitrogen Cycle Overview

Protein

Soil


Nitrogen cycle overview1

Nitrogen Cycle Overview


Phosphorus cycle

Phosphorus Cycle

Importance?

  • Plants growth (especially of leaves)

    • >Eutrophication - over growth of algae

  • All cells need it for:

    • DNA - genetics

    • ATP - Cellular Energy

      Processes -

      Take place primarily in the hydrosphere & lithosphere.

  • Demineralization: phosphorous in rocks is dissolved by ground water

  • Animal/Plant Excretion and Decomposition


Phosphorus cycle overview

Phosphorus Cycle Overview

C

B

A

D

Eutrophication


Water cycle overview

Water Cycle Overview


Water cycle

Water Cycle

  • Condensation

  • Precipitation

  • Evaporation

  • Respiration

  • Evapotranspiration

  • Infiltration

  • Run-off


Imbalance in nature

Imbalance in nature


Food web cycles

Food Web / Cycles


Summary

Summary

  • C - needed for “backbone” of all organic chemicals.

  • N - proteins, nucleic acids

  • P - nucleic acid / plant growth

  • Water - 75% of organisms / Earth

  • All (nutrients) are recycled according to The Law of Conservation of Matter.


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