General Knowledge - Biology - Discussion
Discussion Forum : Biology - Section 1 (Q.No. 19)
19.
Photosynthesis takes place faster in
Discussion:
75 comments Page 5 of 8.
Dipti dhumale said:
1 decade ago
White colour is not included in VIBGYOR, how its white light?
Hanamant Hukkeri said:
1 decade ago
My dear friends red and blue light is the answer.
Whatever a plant getting that is white light only in that white light contains the 7 colors those are VIBGYOR. In this situation chlorophyll will absorb the red and blue light maximum.
Whatever a plant getting that is white light only in that white light contains the 7 colors those are VIBGYOR. In this situation chlorophyll will absorb the red and blue light maximum.
Rachita said:
1 decade ago
Why not blue light?
Jawalika said:
1 decade ago
What is white light?
SUBHRADEEP said:
1 decade ago
Why no photosynthesis takes place in blue color light, and why minimum photosynthesis takes place in green color light, and Why the rate of photosynthesis is maximum in red color light?
Answer 1:
That is a great question, light is a very tricky thing as it comes in various forms of energy levels. UV light (close to purple and blue) is very high energy and that's why we get sunburned. On the other side of the spectrum is Infrared (close to red) which is seen in night vision goggles and can be seen from heat emitting from our bodies, a relatively low energy light. Plants, just like us can only tolerate certain wavelengths of light, especially for the chemical reactions of photosynthesis. Photosynthesis occurs when pigments, molecules in the plant cell, absorb light photons and transfer them around to create chemical energy. These pigments are picky in terms of which light they can use. There are two types of Chlorophyll pigments, A and B. Chlorophyll A absorbs a lot of red and some blue while Chlorophyll B absorbs a lot of blue and some red. Neither absorb green much which is why plants appear green.
Answer 2:
Chlorophyll absorbs red light. No light gets absorbed by chlorophyll means the plant can't do photosynthesis.
Answer 3:
Trees and plants are green because of a green pigment called chlorophyll. 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. Instead of eating food to build molecules, plants can take light from the sun and use the energy to convert carbon dioxide from the air into useful molecules! However, the pigment doesn't strongly absorb blue or green light, so plants can't use this energy for photosynthesis. Interestingly, we know this even from the color of plants! White light contains all the colors, and plants appear green because they absorb the red light, leaving what appears to us as green light, to be seen by our eyes! If the light isn't being absorbed by the plant, it can't be used for photosynthesis!
Answer 1:
That is a great question, light is a very tricky thing as it comes in various forms of energy levels. UV light (close to purple and blue) is very high energy and that's why we get sunburned. On the other side of the spectrum is Infrared (close to red) which is seen in night vision goggles and can be seen from heat emitting from our bodies, a relatively low energy light. Plants, just like us can only tolerate certain wavelengths of light, especially for the chemical reactions of photosynthesis. Photosynthesis occurs when pigments, molecules in the plant cell, absorb light photons and transfer them around to create chemical energy. These pigments are picky in terms of which light they can use. There are two types of Chlorophyll pigments, A and B. Chlorophyll A absorbs a lot of red and some blue while Chlorophyll B absorbs a lot of blue and some red. Neither absorb green much which is why plants appear green.
Answer 2:
Chlorophyll absorbs red light. No light gets absorbed by chlorophyll means the plant can't do photosynthesis.
Answer 3:
Trees and plants are green because of a green pigment called chlorophyll. 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. Instead of eating food to build molecules, plants can take light from the sun and use the energy to convert carbon dioxide from the air into useful molecules! However, the pigment doesn't strongly absorb blue or green light, so plants can't use this energy for photosynthesis. Interestingly, we know this even from the color of plants! White light contains all the colors, and plants appear green because they absorb the red light, leaving what appears to us as green light, to be seen by our eyes! If the light isn't being absorbed by the plant, it can't be used for photosynthesis!
Caroline Anastasia said:
1 decade ago
I think red is the answer. Since photosynthesis takes place in red and blue light. But I partially agree that it is white because when white light is present it not only has the red region but also has the blue.
Therefore PS rate increases when supplied with white light. So, maybe white light is the correct answer after all.
Therefore PS rate increases when supplied with white light. So, maybe white light is the correct answer after all.
Rohit swaroop said:
1 decade ago
Max rate of Photosynthesis is in red light, and min rate of Photosynthesis is in green please clarify it if I am wrong.
MANOJSHEORAN said:
1 decade ago
I think red is right answer because it has longest wavelength.
Suresh naik said:
1 decade ago
Answer is red light because photosynthetic activity is more during this period.
Donte said:
1 decade ago
Wouldn't darkness be the opposite of light?
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