Transcript photosynthesis

PHOTOSYNTHESIS
OBJECTIVE 5.1
ALL LIVING THINGS NEED
ENERGY
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HOW THEY GET IT DIFFERS
SOME EAT MEAT
SOME EAT PLANTS
SOME EAT BOTH
PHOTOSYNTHESIS:
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A PROCESS TO CAPTURE SUNLIGHT
ENERGY AND TO USE IT TO MAKE
FOOD
PHOTO= “LIGHT”
SYNTHESIS= “PUT TOGETHER”
AUTOTROPHS VS
HETEROTROPHS:
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AUTOTROPHS “AUTOMATICALLY”
MAKE THEIR OWN FOOD
HETEROTROPHS DO NOT MAKE THEIR
OWN FOOD
2 STAGE PROCESS:
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STAGE 1=
CAPTURING SUN’S
ENERGY
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STAGE 2=
PRODUCING
SUGARS
STAGE ONE OF
PHOTOSYNTHESIS:
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OCCURS MOSTLY IN LEAVES
OCCURS IN CHLOROPHYLL- PIGMENT
THAT ABSORBS LIGHT
STAGE TWO OF
PHOTOSYNTHESIS:
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NEEDS= CARBON
DIOXIDE AND
WATER
WATER IN FROM
ROOTS
CARBON DIOXIDE
IN FROM STOMATA
PHOTOSYNTHESIS:
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WATER AND CARBON DIOXIDE MOVE
INTO CHLOROPLASTS
SUN’S ENERGY PROVIDES THE
ENERGY FOR THE CHEMICAL
REACTION TO OCCUR
FORMULA:
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RIGHT SIDE = REACTANTS (RAW
MATERIALS)
LEFT SIDE= PRODUCTS (WHAT IS
MADE)
ARROW= YIELDS / GIVES YOU
REACTANTS:
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CARBON DIOXIDE (CO 2)
WATER (H2O)
NOTE: SUN’S ENERGY IS WRITTEN
ABOVE THE ARROW BECAUSE IT IS
NOT A REACTANT OR A PRODUCT!!
PRODUCTS:
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SUGAR (C6H12O6)- ONE MOLECULE OF
SUGAR
- SOME IS ENERGY FOR CELLS
- SOME IS FOR CELLULOSE
- SOME STORED FOR LATER (LIKE
POTATOES AND CARROTS)
OXYGEN (6 O2)- SIX OXYGENS
OXYGEN LEAVES THROUGH STOMA