GOOD MORNING STUDENTS . TODAY WE'LL LEARN ABOUT PHOTOSYNTHESIS . WHAT DOES PHOTOSYNTHESIS
YES , PHOTOSYNTHESIS IS THE PROCESS IN WHICH AUTOTROPHS TAKE IN SUBSTANCES FROM THE OUTSIDE AND CONVERT THEN INTO STORED FORM OF ENERGY
BUT WHAT ARE THE SUBSTANCES THAT AUTOTROPHS TAKE FROM OUTSIDE ?
YOU SEE IN THE AIR THERE ARE MANY GASES AND FROM THAT GASSES THE PLANTS TAKE CO2 GAS AND WATER FROM RAIN OR WE USUALLY WATER THEM . THESE AUTOTROPHS ARE CONVERTED INTO CARBOHYDRATES IN PRESENCE OF SUNLIGHT AND CHLOROPHYLL
WHAT DO CARBOHYDRATES DO ?
CARBOHYDRATES ARE UTILISED FOR PROVIDING ENERGY TO THE PLANT
THE CARBOHYDRATES WHICH ARE NOT USED IMMEDIATELY ARE STORED IN THE FORM OF STARCH
MAAM HOW DOES PHOTOSYNTHESIS OCCUS ?
SO IT OCCUR IN 3 STEPS1.ABSORPTION OF LIGHT ENERGY BY CHLOROPHYLL.2.CONVERSION OF LIGHT ENERGY TO CHEMICAL ENERGY AND SPLITTING OF WATER MOLECULES INTO HYDROGEN AND O23. REDUCTION OF CO2 TO CARBOHYDRATES
IN THE END WE CONCLUDED THAT PHOTOSYNTHESIS IS A PROCESS BY WHICH GREEN PLANTS AND SOME OTHER ORGANISM USE SUNLIGHT , CO2 , WATER ETC TO MAKE THERE OWN FOOD LIKE GLUCOSE