Concept 2: Analyzing the Processes of Photosynthesis

Concept 2:  Analyzing  the Processes of Photosynthesis Concept 2:  Analyzing  the Processes of Photosynthesis - Start

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Concept 2: Analyzing the Processes of Photosynthesis - Description

Refer to . pg. . 83-92 . in . Holtzclaw. , . Ch. 10 in Campbell and media resources. . Refer . to . pg. . 297. -299 . in . Holtzclaw. , Lab . Inv. 5 . in . Lab Manual. Try This!. Where does the biomass of a tree primarily come from?. ID: 714627 Download Presentation

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Concept 2: Analyzing the Processes of Photosynthesis




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Presentations text content in Concept 2: Analyzing the Processes of Photosynthesis

Slide1

Concept 2:

Analyzing the Processes of Photosynthesis

Refer to

pg

83-92

in

Holtzclaw

,

Ch

10 in Campbell and media resources

Refer

to

pg

297

-299

in

Holtzclaw

, Lab

Inv

5

in

Lab Manual

Slide2

Try This!Where does the biomass of a tree primarily come from?OxygenWater

Carbon dioxideLightFertilizer

Slide3

Try This!Where does the biomass of a tree primarily come from?OxygenWater

Carbon dioxideLightFertilizer

CO

2

A building block for

organic molecules!

Slide4

Try This!An acorn grows into an oak tree. The main source of the additional mass present in the oak tree is: a. Water

from the soil b. Minerals from the soil c. CO

2

from the air

Slide5

Try This!An acorn grows into an oak tree. The main source of the additional mass present in the oak tree is: a. Water from the soil b. Minerals from the soil

c. CO2 from the air

CO

2

A building block for

organic molecules!

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Photosynthesis(Chapter 10)You must know: The summary equation

of photosynthesis including the source and fate of reactants and productsHow the leaf and chloroplast anatomy relates to photosynthesisHow photosystems convert

solar energy to chemical

energy

How linear

electron flow

in the

light reactions

results in the formation of ATP, NADPH, and O2How chemiosmosis generates ATP in the light reactionsHow the Calvin cycle uses the energy molecules of the light reactions to produce

G3P

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Photosynthesis – The BasicsCO2 + H2O → C

6H12O6 + O2

Light Reactions

“photo”

Calvin Cycle

“synthesis”

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The Light ReactionsLight energy excites electrons in chlorophyllRemoval of electrons from H2O

Formation of O2Electron Transport ChainReduction of NADP+ to NADPHProton Motive Force

ATP Synthase to produce

ATP

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H

+

!

Proton Motive

Force

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H

+

!

Proton Motive

Force

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H

+

!

Proton Motive

Force

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Try ThisUnlike in cellular respiration, the proton motive force generated by the light reactions in photosynthesis happens in three ways… Can you remember the three ways?Electron transport chain

powering the active transport of H+ into the thylakoid spaceH+ produced in the thylakoid space

from the splitting and oxidation of

water

Removal of

H

+

from

stroma during the reduction of NADP + to NADPH

Slide32

The Light ReactionsLight energy excites electrons in chlorophyllRemoval of electrons from H2OFormation of

O2 (leaves stomata as a gas)Electron Transport ChainReduction of NADP+ to NADPHProton Motive Force ATP Synthase to produce

ATP

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The Light ReactionsThe whole point was to transfer light energy to chemical energy in the form of:electrons in NADPHATPWhy?To power

carbon fixation in theCalvin Cycle…

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The Calvin CycleCO2 enters as a gas through the stomata (openings) of the leavesThrough the power of NADPH and

ATP, CO2 gets converted into an organic compound: a 3-carbon sugar called glyceraldehyde-3-phosphate (G3P)Can be converted to glucose, sucrose, starch

, etc…

Carbon Fixation!

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The whole point…

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Try This!Which experiment will produce

18O2?Exp

1

Exp

2

Both!

Neither!

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Try This!Which experiment will produce

18O2?Exp

1

Exp

2

Both!

Neither!

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Watch Bioflix!

Slide44

Next Class…Adaptations to hot, arid climates…CAM plants and C4 plants

Slide45

Now…PracticeTry #12 – 15, 17-19, 21-22 p. 91-92Go over Comparison ChartsTry animation activities (Campbell Online)Read about CAM plants and

C4 plantsP. 88-89 HoltzclawP. 200-202 CampbellActivity: Photosynthesis in Dry Climates (Campbell Online)


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