PHOTOSYNTHESIS Autotrophic Process: Plants and plant-like organisms make their energy (glucose) from sunlight. Stored as carbohydrate in their bodies.

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Presentation transcript:

PHOTOSYNTHESIS Autotrophic Process: Plants and plant-like organisms make their energy (glucose) from sunlight. Stored as carbohydrate in their bodies. 6CO2 + 6H2O + sunlight  C6H12O6 + 6O2

Photosynthesis-starts all ecological food webs!

Photo-synthesis means "putting together with light." Plants use sunlight to turn water and carbon dioxide into glucose. Glucose is a kind of sugar. Plants use glucose as food for energy and as a building block for growing. Autotrophs make glucose and heterotrophs are consumers of it.

Photosynthesis 6CO2 + 6H2O + energy  C6H12O6 + 6O2 Carbon dioxide + water glucose + oxygen sunlight absorbed by chlorophyll 6CO2 + 6H2O + energy  C6H12O6 + 6O2 As can be seen from the equation for photosynthesis, the wood, bark, and root came from water and carbon dioxide.

Leaves are green because they contain Plants Leaves are green because they contain the pigment: chlorophyll Leaves have a large surface area to absorb as much light as possible "Thanks for the Glucose!"

Chloroplasts make the sugars!

PHOTOSYNTHESIS Why do we see green? Green color from white light reflected NOT absorbed Chloroplast: organelle responsible for photosynthesis Chlorophyll: located within Chloroplast Green pigment

Chloroplasts make the oxygen too!

In plants and simple animals, waste products are removed by diffusion In plants and simple animals, waste products are removed by diffusion. Plants, for example, excrete O2, a product of photosynthesis.

EQUATION FOR PHOTOSYNTHESIS WATER OXYGEN 6CO2 + 6H2O + ENERGY C6H12O6 + 6O2 CARBON DIOXIDE GLUCOSE

The Calvin cycle Calvin cycle) is the set of chemical reactions that take place in chloroplasts during photosynthesis. The cycle is light-independent energy has been captured from sunlight.