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Download Energy in A Cell - Bishop Ireton High School
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Energy in A Cell Why do cells need energy? Transport materials Cell division Production of proteins Source of Cell’s Energy ATP Adenosine triphosphate Energy is available when ATP ADP +P +energy The energy is in the last phosphate bond A-P-P~P A-P-P +P +ENERGY Photosynthesis 6CO2 + 6H2O C6H12O6 +6O2 Photosynthesis Plants use ATP but must store it Photosynthesis- process of using the sun’s energy (light energy) to make glucose (chemical energy) Then the plant takes glucose and makes complex carbohydrates (stored energy) 2 PHASES 1. Light dependant- chlorophyll 2. Light converts light energy into chemical energyPRODUCES ATP ,NADPH and Oxygen Independent- uses CO2 to produce glucose (Also called Calvin Cycle) What happens when chlorophyll absorbs light? The electrons in chlorophyll are raised to a higher energy level. These electrons are passed to an electron carrier molecule: NADP+ NADP+ becomes NADPH ADP is also converted to ATP Occurs across the thylakoid membrane Chloroplast Thylakoid contains pigment chlorophyll Absorbs all colors of wavelengths except green
