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adriana321
on FreezingBlue Flashcards.
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autotroph
- make their own food
- ex. plants- chlorophyll
- use light energy to create foods and produce energy
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Heterotroph
- cannot create their own food
- cannot directly use the sun's energy
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Photosynthesis Goal
- to create glucose
- photosynthesis:
- anabolic- small molecules combine
- endergonic- energy enters
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Equation
6CO2 + 6H2O + sunlight energy ---> C6H12O6 + 6O2 + 6H2O
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Stoma
- pores
- stomata(pl.)
- water and vapor gases (CO2 and O2) are exchanged between plant/atmosphere
- underside of leaf
- CO2 enters, water and oxygen exit
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Mesophyll Cells
- vacuole, cell wall, cell membrane, chloroplast
- chloroplast
- double membrane: 1. outer smooth 2. inner
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chlorophyll
- pigment that absorbs blue/red wavelengths and reflects green wavelengths
- plants are green b/c green wavelength is reflected not absorbed
- Chlorophyll A/B
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Chlorophyll A/B
slightly different in structural makeup
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Wavelengths
plants are comfortable on the ends of the spectrum; blue/red
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What causes leaves to change colors in the fall?
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