Inside the chloroplast, the light reactions happen in the thylakoids. Water, ADP, and NADP+ are converted into oxygen, ATP, and NADPH. In the stroma, the dark reaction makes sugars
Light
Photosystem IIElectron Transport ChainPhotosystem I
O2
H2O
ADP + P
NADH
ATP
NADP+
RuBP
G3P
Stroma
CO2
Phosphoglycerate
Calvin Cycle
An organism obtains energy, whether by eating food or making its own.
Cellular respiration is the process of releasing energy by breaking down glucose and other food molecules in the presence of oxygen.
Cytoplasm
Glycolysis
Mitochondria
Krebs Cycle
Cellular respiration has three steps. They are Glycolysis, the Krebs Cycle, and the Electron Transport Chain. If there is no oxygen present, fermentation follows glycolysis.
Electron Transport Chain
2 ATP
2 ATP
32 ATP
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