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Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food...

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Page 1: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

Photosynthesis

Page 2: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

Autotrophs and Heterotrophs

• Autotrophs are organisms that make their own food

• Heterotrophs are organisms that need to ingest food to obtain energy

Page 3: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

How are they related??

Page 4: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

Page 5: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

Autotrophs

Page 6: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

Photosynthesis• How plants (and some other organisms) use

light to convert water and carbon dioxide into oxygen and sugar!

Page 7: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

• Happens here = chloroplast

Page 8: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

Leaf

Plant Cell

chloroplast

Page 9: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

Chloroplasts have chlorophyll (pigment)

This is why chloroplasts are green, why leaves are green

Page 10: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

Chloroplast

Lumen (inside thylakoid)

Outer membrane

intermembrane space

Inner membrane

Stroma

thlakoid

grana

Page 11: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

Photosynthesis

Light reactions

Dark Reactions

Photosystem II

Photosystem IIn thylakoid membrane

(aka… The Calvin Cycle)In stroma

Page 12: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

Page 13: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

2 Photosystems in thylakoid

Light reactions

Page 14: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

Light reactionsIn thylakoid membrane

P680

photons

P680

ETR

ATP

P700

P700

ETR

ATP

Photosystem II Photosystem I

NADPH

Page 15: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

Page 16: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

NOTE……

Electron Carriers are NADP …… b/c can become NADPH

Page 17: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

• Hydrogen ions flow through a channel in the thylakoid membrane

• ATP synthase attachedto the channel makesATP

How ATP made in light rxn?

Page 18: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

Page 19: Photosynthesis. Autotrophs and Heterotrophs Autotrophs are organisms that make their own food Heterotrophs are organisms that need to ingest food to obtain.

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