Photosynthesis and Cellular Respiration PHOTOSYNTHESIS Most important biological process on earth Fills food requirements & needs for fiber & building.

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Presentation transcript:

Photosynthesis and Cellular Respiration

PHOTOSYNTHESIS Most important biological process on earth Fills food requirements & needs for fiber & building material – Petroleum, natural gas, coal, firewood Photo means “light” Synthesis means “to put together” Photosynthesis happens in the chloroplast in plants, some bacteria, and some protists.

The Equation Reactants Products Carbon dioxide + Water sunlight Glucose + Oxygen (carbohydrate) 6CO 2 + 6H 2 0C 6 H 12 O

Cellular Respiration

Where does it happen? In the Cell –Mitochondria “powerhouse of the cell”

Steps in cellular respiration 1.Sugar (glucose= C 6 H 12 O 6 ) from food is eaten. 2.Oxygen ( 0 2 ) is inhaled (breathed in from the water in some organisms). 3.Food is broken down with the help of oxygen through body chemical reactions (metabolism). 4.Carbon dioxide ( CO 2 ) and water ( H 2 0 ) are exhaled are produced in the reaction, which is energy needed for cellular activity. ATP

The equation Reactants Products Glucose + Oxygen Carbon dioxide + Water + Energy (carbohydrate) 6CO 2 + 6H 2 0+C 6 H 12 O ATP

CELLULAR RESPIRATION DIAGRAM MITOCHONDRION (IN THE CELL)

Comparing both processes You can say that the formulas for photosynthesis and cellular respiration are the exact opposite: Photosynthesis: Cellular Respiration: 6CO 2 + 6H 2 0 ATP C 6 H 12 O NOTE: ATP is produced in both reactions, but CELLULAR RESPIRATION produces all the ATP needed for cells to function.