Photosynthesis (AQA A-Level Biology): Flashcards
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Limiting factor definition
Limiting factor definition
Environmental condition restricting photosynthesis rate when in short supply
Three main limiting factors
Three main limiting factors
Light intensity, temperature,
% in atmosphere
% in atmosphere
0.04%
Optimum temp for temperate plants
Optimum temp for temperate plants
Around 25°C
Temp below 10°C effect
Temp below 10°C effect
Enzymes inactive, photosynthesis slows
Temp above 45°C effect
Temp above 45°C effect
Enzymes denature and lose shape
Wavelengths absorbed by chlorophyll
Wavelengths absorbed by chlorophyll
Mainly red and blue light
Why plants appear green
Why plants appear green
Reflect green light they can't use efficiently
Law of limiting factors
Law of limiting factors
One factor limits at a time; improving others won't help until it's fixed
conc. for significant increase
conc. for significant increase
0.4%