Bio Photosynthesis

8/18/2019 Bio Photosynthesis

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HOTOSNYTHESISGROU1. DINES2. HAZIM3. HAFIZ

4. DANIE


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WHAT IS PHOTOSNYTH

Photo"th#$ is the proceswhich plants, some bacteria, some protistans use the en

from sunlight to produce suwhich cellular respiration convinto ATP, the "fuel" used byliving things.


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INTRODU%TION OPHOTOSNYTHES

• Autotrophic Process: Plants and plant-organisms mae their energy !glucosesunlight.

• #tored as carbohydrate in their bodies

• $%&' ( $)'& ( sunlight %$)*'&$ ( $


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WHY ISPHOTOSNYTHESI

IMPORTANT &&• +aes organic molecules !glucose

out of inorganic materials !carbondioide and water.

• t begins all food chainswebs. Thall life is supported by this proces

• t also maes oygen gas//


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PHOTOSNYTHESIS ' START TO

E%OLOGY FOODWE( !!!


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PHOTO ) SYNTHES

• Plants use sunlight to turn waand carbon dioide into glucos0lucose is a ind of sugar.

• Plants use glucose as food forenergy and as a building blocfor growing.

• Autotrophs mae glucose and

heterotrophs are consumers o


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%*+,o" -$o$-# / 0*t#+o# / o#"

SUNLIGTH

ABSORBED BY CHLOROPHYLL

PHOTOSYNTHES


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PLANTS HAVMANY TYPE O

%ELL !!!


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2 PHASE OF REA%T

• ' Phases

• 1ight-dependent reaction

• 1ight-independent reaction

• 1ight-dependent: converts light energy intchemical energy2 produces ATP molecules used to fuel light-independent reaction

• 1ight-independent: uses ATP produced to

simple sugars.


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LIGHT DEPENDENREA%TION 5LIGH

REA%TION6• 3e4uires light

• &ccurs in chloroplast !in thylaoids

• %hlorophyll !thylaoid traps energy light

• 1ight ecites electron !e-

• Kicks e- out of chlorophyll to an eletransport chain

• Electron transport chain: series of

proteins in thylakoid membrane


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• 5nergy lost along electron transport cha

• 1ost energy used to recharge ATP from A

• 7A6P) produced from e- transport chain

• Stores energy until transfer to stroma

• Plays important role in light-independreaction

•

Total byproducts: ATP, 7A6P, &'

LIGHT DEPENDENREA%TION 5LIGH

REA%TION6


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LIGHT INDEPENDEREA%TION 5DAR

REA%TION6• 6oes not re4uire light• %alvin %ycle

• Occurs in stroma of chloroplast

• Requires O!

• "ses #$P and %#&P' as fuel to run

• (akes glucose sugar from O! and

'ydrogen


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AFFE%TS OF PHOTOSN

A8ects ofPhotosnythesi

s

1ightintensity

%arbondioide

Te


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9 hat a8ects photosynthesis;

9 1ight intensity: as light increases, rate ophotosynthesis increases

LIGHT INTENSIT


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9 %arbon 6ioide: As %&' increases, rate

photosynthesis increases

%AR(ON DIO8ID


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9 Temperature:

9 $emperature )o* + Rate of photosyn

9 $emperature ,ncreases + Rate of phoincreases

9,f temperature too hot rate drops

TEMPERATURE


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Bio Photosynthesis