The areas of the spectrum that drive photosynthesis are highest in the red end (600-700 nm), followed by the blue region (400-500 nm) and lastly, the green region (500-600 nm). These data show that between 50 and 75% of the green light is used in photosynthesis. Thus, Green light is necessary for photosynthesis.
Out of the colored lights, blue had the shortest wavelength and the fastest rate of photosynthesis. Green had only one disc rise which proves the prediction because green light did photosynthesize but very little.
*Which wavelengths of light drive the highest rates of photosynthesis? Select the two best answers. Light in the violet-blue and red portions of the spectrum is most effective in driving photosynthesis.
b. Because the absorption spectra of the pigments are highest in the purple/blue wavelengths, we can assume that red light is not effective. One cannot tell from this graph, but because chlorophyll a does absorb red light, we can predict that it would be effective in driving photosynthesis.
Why are C4 plants able to photosynthesize with no apparent photorespiration? They use PEP carboxylase to initially fix CO2. CAM plants keep stomata closed in the daytime, thus reducing loss of water. A plant has a unique photosynthetic pigment.
The similarities of photophosphorylation to oxidative phosphorylation include: a membrane associated electron transport chain. creation of a proton gradient. harvesting energy of the proton gradient by making ATP with the help of an ATP synthase.
As far as the rate of photosynthesis is concerned, it is fastest in white light making the rate of photosynthesis maximum. After White, We Have Violet Light Where Photosynthesis Occur To A Higher Extent as It Has The Shortest Wavelength Hence Has The Max Energy.
Red light is more effective in photosynthesis because both the photosystems (PS I and PS II) absorb light of wavelengths in the red region (680 and 700 nm, respectively).
Maximum photosynthesis occurs in red light. Light is absorbed by photosystem II that is membrane-bound. It absorbs infrared and red light. On the other hand, blue light is absorbed by chlorophyll and carotenoids but some carotenoids are not found in chloroplasts.
The absorption spectrum of chlorophylls includes wavelengths of blue and orange-red light, as is indicated by their peaks around 450-475 nm and around 650-675 nm. As a note, chlorophyll a absorbs slightly different wavelengths than chlorophyll b.
What connects the two photosystems in the light reactions? An electron transport chain connects the two photosystems in the light reactions.
H2O → 2 H++ 1/2 O2 + 2e-C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + Energy6 CO2 + 6 H2O → C6H12O6 + 6 O2C6H12O6 + 6 O2 → 6 CO2 + 12 H2O 6 CO2 + 6 O2 → C6H12O6 + 6 H2O CorrectThis is the equation that summarizes the reactions of photosynthesis.
Plants that receive plenty of blue light will have strong, healthy stems and leaves. Red light is responsible for making plants flower and produce fruit. It’s also essential to a plant’s early life for seed germination, root growth, and bulb development.
The main reason for this is that white light is a mixture of all the colors in the visible spectra. In the thylakoid membranes of plants the light absorbing molecules called pigments absorb and or reflect wavelengths of light. Chlorophyll a and chlorophyll b are 2 of these pigments.
No light gets absorbed by chlorophyll means the plant can’t do photosynthesis. Answer 3: This pigment absorbs red light the best, and converts the light into energy that it uses for metabolism. As you likely know, this pigment allows plants to use light as a form of energy, as a part of a process called photosynthesis.