Photosynthesis and Cellular Respiration (Photosynthesis (6(CO2) + 12 (H2O)…
Photosynthesis and Cellular Respiration
Calvin Cycle (
Uses chemical Energy from the Light Reaction into carbohydrates in the stroma.
Step 1: Carbon Fixation. CO2 is harnessed from the air and combined with RuBP to great 3 PG (phosphoglycerate)
Step 2: Reduction of Carbon Dioxide. 3GP is first reduced to BTP by removing one phosphate then reduced again to G3P which has more electrons
During this step, ATP becomes ADP (first part) and NADPH becomes NADP+ (Second Part)
G3P is important because it is able to store energy and be part of large molecules.
Step 3: Regeneration of RuBp. Steps 1 & 2 happen twice more to replenish RuBP
Light Reaction (
Uses green pigment to turn solar energy into chemical energy (ATP + NADPH) in the Thylakoid.
Thylakoid: flattened sacs where solar energy is captured. Housed in the chloroplast.
Photosystem 2: The Energy used in the Light Reaction comes from energizes electrons who send their energy down the electron transport chain. Also the location where ATP is created.
The electron transport chain is a series of electron acceptance molecules that pass the energy on until it reaches photosystem 1.
ATP: Adenosine triphosphate. Energy currency within cells
photosystem 1: uses electron acceptor from the ETC to reduce NADP+ which becomes NADPH when hydrogen is added.
NADP+: Needs energy
NADPH: energy from used in Calvin Cycle
ATP Synthesis: creates ATP as H+ ions move from the high level in the thylakoid to low level in the stroma.
6(CO2) + 12 (H2O) = 6(CH2O) + 6(H2O) + 6(O2)
Sugar (CH2O) is the form of energy used my organisms to complete the functions of life.
Water (H20) is taken in by the roots
CO2 is taken in by the stomata
Stomata: cellular opening