3. FOTOSINTESIS 1213

8/10/2019 3. FOTOSINTESIS 1213

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PHOTOSYNTHESISBy Lilik Hidayah


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Basic questions?? What do plants

eat?

Why do plantsneed light?

Why do plants

need water? Why are plants

green?


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Summary of photosynthesis ??? CO2 H2O and light go in!

Car"ohydrate and O2come

out

#CO2$#H2O

C#H%2O#$O2


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S1.(S O ,HO.OS/0.H(S1S


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,HO.OS/0.H(.1C

,134(0.S


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.H( ,'OC(SS O

,HO.OS/0.H(S1S

%5 Light dependent.he light reactions con6ert solar energy to the chemicalenergy of 7., and 078,H

25 Light independentorming of car"ohydrate from CO2 using energy from

light dependent reaction


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S.(, %& .H( ,'OC(SS O ,HO.OS/0.H(S1S

How is light 9captured:?


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Light (nergy Captured ,hotolysisand (L(C.'O0 LOW


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Linear (lectron low andCyclic (lectron low


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Step 2& Light 1ndependent 'eaction


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Step 2& Light 1ndependent 'eaction


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1. Light dependentLight energy captured'esult& 7., and 078,HConsist of ; reactions&

Light har6esting inphoto) system 1 andphotosystem 11

(lectron low&a


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#CO2 $ %2H2O )))) C#H%2O# $ #H2O $ #O2

Su"strat awal& #CO2 $ %2H2O

Hasil akhir& C#H%2O# $ #H2O $ #O2


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PHOTOSYNTHESIS LIGHT

.he chlorophyll molecules ofchloroplasts a"sor" Dio1et)"lue and

red light @the colors most eEecti6e 1ndri6ing photosynthesis< and reFect ortransmit green light5 .his is whylea6es appear green5


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%ESPI%SI & "OTOSINTESISmerupakan proses meta"olisme yang saling

"erlawanan

Gar"ohidrat

CO2 $ H2O

O2

2H$

"otosintesis%espirasi

O2

2H$

Energi rendah

Energi tinggi


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Ta'(e ).1 #omparison ofPhotos*nthesis and #e((u(ar%espirationPhotos*nthesis #e((u(ar%espirationood synthesi*ed ood "roken down

(nergy from sun stored in glucose(nergy of glucose releasedCar"on dioide taken in Car"ondioide gi6en oEOygen gi6en oE Oygen taken in,roduces sugars ,roduces CO2

from ,37L and H2O'equires 8oes notlight require lightOccurs only in Occurs in allpresence of li6ing cells

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3. FOTOSINTESIS 1213