Energy. I. Metabolic Pathways. Energy = the ability to do work Metabolic processes use chemical E (ATP) E released when chemical bonds break (e - pulled apart) Each step is regulated by enzymes. I. Photosynthesis and Nature. Sunlight provides energy to produce carbohydrates.
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6CO2 + 6H2O C6H12O6 + 6O2
use light energy
use chemical energy
fluid-filled inner space
internal membranes within stroma
4. Organized into stacks called grana.
chlorophyll a and b.
B. Carotinoids = yellow-orange pigments ; absorb light in violet, blue, and green regions
C. In fall, chlorophyll breaks down and the yellow-orange pigments show through.
D. Accessory pigments capture light when sun changes positions.