PHOTOSYNTHESIS
- Created by: Katy **
- Created on: 07-04-16 14:59
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- PHOTOSYNTHESIS
- LIMITING FACTORS
- light intensity
- carbon dioxide (0.04%)
- temperature
- ADVANTAGES OF PLANT STRUCTURE
- leaf
- LARGE surface area short diffusion distance
- palisade cell
- closely packed together
- chloroplast
- many grana & thylakoids are parallel
- chloroplast
- lipid soluble tail
- many photosynthetic pigments
- large range of light intensities & wavelengths
- chlorophyll a & b
- carotene (high levels of light)
- antenna complex
- low light intensities
- absorb & reflect light to reaction center (chlorophyll a)
- absorption spectra
- absorption of light
- action spectra
- rate of photosynthesis & wavelength of light
- leaf
- CALVIN EXPERIMENT
- lollipop flask
- LARGE surface area
- screening glass
- stop overheating & death of enzymes
- nutrients reservoir
- amino acids & proteins for growth
- sodium hydrogen carbonate
- carbon dioxide
- radioactive carbon-14
- radioactive marker
- hot methanol
- "suspended animation"
- Chromatography (TLC)
- black radioactive spots
- pigment soluble in solvent
- more soluble = carried further
- compare with known Rf values
- 2-way chromatography = rotate 90'
- lollipop flask
- MEASURING RATE OF PHOTOSYNTHESIS
- Potometer Experiment
- = (pie r2 x length or distance bubble moved) DIVIDED BY time
- LIGHT DEPENDENT REACTION
- occurs on the thylakoid membrane
- The Light Dependent Reaction
- products
- ATP
- oxygen
- NADPH
- LIGHT-INDEPENDENT REACTION
- occurs in the stroma
- products from light dependent reactions
- NADPH
- ATP
- The Light-Independent Reaction
- LIMITING FACTORS
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