6 2 Notes Calvin Cycle Calvin Cycle Series

6 -2 Notes: Calvin Cycle

Calvin Cycle Series of reactions that produces C 6 H 12 O 6 (glucose) 6 CO 2 + 6 H 2 O → →→→→C 6 H 12 O 6 (glucose)+ 6 O 2 Occurs in the stroma

Calvin Cycle • Reactants: CO 2, and NADPH & ATP (from light rxn)

Calvin Cycle • Reactants: CO 2, and NADPH & ATP (from light rxn) • The energy in ATP is transferred into CO 2 rearranging bonds to form C 6 H 12 O 6 (glucose) • Product: Glucose

Calvin Cycle CO 2 is the carbon source for C 6 H 12 O 6 (glucose)

The Fate of Glucose Some will be used for energy (broken down in mitochondria) For growth and development

The Fate of Glucose Some will be used for energy (broken down in mitochondria) For growth and development The unused (excess) will be stored as starch (ex: potatoes)

Photosynthesis and Global Warming CO 2 is a greenhouse gas (traps heat)

Photosynthesis and Global Warming CO 2 is a greenhouse gas (traps heat) CO 2 is currently being released faster than photosynthesis can remove it Burning of fossils fuels

Photosynthesis and Global Warming Deforestation: clearing of forests for farming and human settlements

Photosynthesis and Global Warming 25% of carbon dioxide added to the atmosphere comes from cutting and burning forests in the tropics.

Photosynthesis and Global Warming 25% of carbon dioxide added to the atmosphere comes from cutting and burning forests in the tropics. Grasslands and crops remove 30 -60% less CO 2 per acre than forests

Photosynthesis and Global Warming Replanting helps: young trees have faster net photosynthetic rates than older trees.

Make this chart in your notes Reaction Calvin Cycle Location Reactants Products

Make this chart in your notes Reaction Calvin Cycle Location Stroma Reactants ATP NADPH CO 2 Products C 6 H 12 O 6 (Glucose)