Photosynthesis%20

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Photosynthesis Cellular Respiration
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Photosynthesis

• the process of converting light energy to
  chemical energy and storing it in the bonds of
  sugar.
• this process occurs in plants and some algae.
• Plants need only light energy, CO2, and H2O to
  make sugar.

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Making Sugar

• 6H2O 6CO2 ----------gt C6H12O6 6O2
• Endothermic process, (uses energy)

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• We all depend on the process of photosynthesis
• One of the oldest most fundamental of life
  processes
• Less then 1 of the energy that reaches the earth
  is captured

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Cellular Respiration

• It is a chemical transformation, that uses
  glucose and oxygen to release energy
• A form of combustion
• Exothermic Reaction

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Notes

• Photosynthesis takes in CO2
• Needs energy
• Glucose and oxygen are the products of the
  photosynthesis process

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Notes

• Cellular Respiration is the reverse of
  photosynthesis
• Takes oxygen and gives off carbon dioxide and
  energy

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Permafrost

• Permafrost occurs when the ground remains at or
  below a temperature of 0oC for a minimum period
  of two years. Permafrost occurs not only at high
  latitudes but also at high altitudes..

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Permafrost

• Almost all of the soil moisture in permafrost
  occurs in the form of ground ice, which in turn
  occurs in several different forms. The quantity
  of ice in the ground varies widely

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Permafrost

• Permafrost and ground ice have had significant
  effects on the economic development of the North.
  
• It affects the energy and mining industries, as
  well as the construction of modern settlements
  and infrastructure elements such as roads,
  railways, airfields, and utilities

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Permafrost and climate change

• Climate change has had a significant impact on
  communities settled on permafrost soil.
• As global climate rises some permafrost regions
  are thawing out