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Alternation of Generation - Coggle Diagram
Alternation of Generation
Stomata: Small pore bounded by specialized epidermal cells & guard cells
Permits gas exchange in higher plants, Oxygen out, CO2 in
Controls water loss
One of the earliest features of land plants
Life Cycles Evolutions
Sporophyte dominant, gametophyte & sporophyte independent
Sporophyte dominant, gametophyte reduced
Sporophyte Evolution
Things to Know
Absorbance Spectrum
Photosynthesis: Evidence for Origins
Photosystems
PS2: Hydrolysis P680, Absorbs shorter wavelengths, favors Chlorophyll b
PS1 : Cyclic phosphorylation, P700, Absorbs longer wavelengths, favors Chlorophyll a
Consists of: Antennal complex, accessory pigments, Chlorophyll pigments, and reaction center
Photophosphorylation
Cyclic
Noncyclic
Photosynthetic Pigments
Chlorophyll a
Chlorophyll b
Accessory Pigments
Photosynthesis reverses respiration: Light + 6 CO2 + 6 H20 -> C6H12O6 + 6 O2
Two Stages
Thylakoid Reactions: Light reactions
Stromal Reactions: Dark reactions, apart of the Calvin-Benson-Bassham Cycle
Stromal Reactions
Reduction
Regeneration
Fixation
