Module 6, lesson 1 photosynthesis

Photosynthesis (Life from ) 6H 2 O + 6CO 2 ----> C 6 H 12 O 6 + 6O 2 Light

A little background ,[object Object],[object Object],[object Object],Organisms autotrophs heterotrophs Make own food Obtain food from others

The fuel of living things ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Adenine Ribose P P P

ADP ,[object Object],[object Object],[object Object],[object Object],This is where The bond breaks To turn ATP into ADP ADP

The photosynthesis equation ,[object Object],[object Object],[object Object],[object Object]

Energy needs of Life ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Where does photosynthesis occur? In the chloroplasts! absorb sunlight & CO 2 make energy & sugar CO 2

Light: absorption spectrum ,[object Object],[object Object],[object Object]

Chloroplasts ,[object Object],THAT IS WHY PLANTS LOOK GREEN TO US! WE SEE WHAT IS RELFECTED.

Photosynthesis: Overall Equation ,[object Object],+ water + energy  glucose + oxygen carbon dioxide 6CO 2 6H 2 O C 6 H 12 O 6 6O 2 light energy  + + +

Photosynthesis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Energy building reactions Sugar building reactions ATP ADP sugar sun CO 2

Energy Building Reactions O 2 H 2 O Energy Building Reactions sunlight ATP H 2 O ATP O 2 light energy  + + ,[object Object],[object Object]

Sugar Building Reactions sugars C 6 H 12 O 6 CO 2 Sugar Building Reactions ATP CO 2 C 6 H 12 O 6 ADP ATP  + + ADP ,[object Object],[object Object],[object Object]

Putting it all together sugars C 6 H 12 O 6 CO 2 ATP ADP H 2 O O 2 sunlight Sugar Building Reactions Energy Building Reactions ,[object Object],[object Object],[object Object],CO 2 H 2 O C 6 H 12 O 6 O 2 light energy  + + +

So what does a plant need? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],roots shoot leaves

How can a leaf do this? Let’s briefly examine the leaf structure H 2 O CO 2 CO 2 O 2 H 2 O phloem (sugar) O 2 xylem (water) Stoma (pore/hole)

Stomata ,[object Object],[object Object],[object Object],[object Object],guard cell Stomata (pore or hole)

Xylem carry water up from roots

Phloem: food-conducting cells ,[object Object],[object Object],[object Object],[object Object]

Putting it all together ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How are cellular respiration and photosynthesis connected? Respiration Photosynthesis glucose + oxygen  carbon + water + energy dioxide C 6 H 12 O 6 6O 2 6CO 2 6H 2 O ATP  + + + + water + energy  glucose + oxygen carbon dioxide 6CO 2 6H 2 O C 6 H 12 O 6 6O 2 light energy  + + +

Energy cycle Photosynthesis Cellular Respiration O 2 CO 2 plants animals, plants ATP H 2 O sun The Great Circle of Life! glucose

Resources ,[object Object],[object Object]

Module 6, lesson 1 photosynthesis

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