1 / 21

Natural (Nutrient) Cycles

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

toshi
Download Presentation

Natural (Nutrient) Cycles

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Natural (Nutrient) Cycles C, N, and P -macronutrients (we need a relatively large amount)

  2. 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)

  3. Photosynthesis Carbon “moves” from the atmosphere as carbon dioxide (CO2) to Plants as sugar (C6H12O6).

  4. Photosynthesis

  5. 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

  6. Decomposition- break down of dead organic matter

  7. Decomposition

  8. Metabolism- all the chemical reactions in an organism

  9. Combustion - burning of organic material.

  10. Carbon Cycle Overview

  11. 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

  12. Air Nitrogen Cycle Overview Protein Soil

  13. Nitrogen Cycle Overview

  14. 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

  15. Phosphorus Cycle Overview C B A D Eutrophication

  16. Water Cycle Overview

  17. Water Cycle • Condensation • Precipitation • Evaporation • Respiration • Evapotranspiration • Infiltration • Run-off

  18. Imbalance in nature

  19. Food Web / Cycles

  20. 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.

More Related