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What assumptions did Engelmann make in order to conclude that red and violet-blue light were more effective than green light in driving photosynthesis?
Wiki User
∙ 12y ago
The distribution of chloroplasts within each algal cell was approximately the same.
The number of bacteria clustered at each wavelength (color) was approximately proportional to the amount of oxygen being produced by that portion of the alga.
Wiki User
∙ 12y ago
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Effective density of states in conduction band?
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Engelmann's experiment determined which wavelengths of light are most effective at causing photosynthesis In other words Engelmann measured?
blue and red.
Engelmann's investigation to determine the effective wavelengths of light in photosynthesis depended on a photosynthetic alga's?
release of Oxygen
What did Theodor W. Engelmann discover?
Theodor W. Engelmann discovered through a now classic experiment that the wavelengths of light have an affect on photosynthesis, more specifically that violet-blue and red portions of the visible spectrum are most effective in driving photosynthesis.He discovered this by illuminating a filamentous alga with light shone through a prism. This exposed segments of the alga to different wavelengths. Engelmann then used aerobic bacteria to determine which segments of the alga produced the most oxygen and thus photosynthesized the most as the bacteria would concentrate around that area. He noticed that they concentrated mostly around the violet-blue portions and towards the red portions and was thus able to conclude that these sections were most effective in photosynthesis. Not bad for an experiment done in 1883!
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What colours of light are most effective in the photosynthesis process?
blue
Can you tell from these absorption spectra whether red light is effective in driving photosynthesis?
One cannot tell from this graph, but because chlorophyll adoes absorb red light, we can predict that it would be effective in driving photosynthesis.
What are potential benefits of an increased rate of photosynthesis?
Photosynthesis is the single most important function in all of living things. An increased rate of photosynthesis will allow the process to be not as effective.
What wavelength of light is the least effective in driving photosynthesis?
Photosynthetic pigments absorb blue, red and green lights. The wavelength of light that is the most effective in driving photosynthesis is 420 nanometers, which corresponds to blue light.
Is it true that the wavelengths of light most effective in photosynthesis are those in the green part of the visible spectrum?
No
Which part of root make it an effective organ for absorption of water which is needed by plants in photosynthesis?
Root hair region
Is light necessary for photosynthesis which light?
Ordinary visible light. It is most effective with a peak in the yellow, just like the sun provides.
What colors of light are effective for photosynthesis?
Red mostly. Leaves appear green to us because plants don't use it and reflect it away.
