Do plants grow faster under certain colors of light?
Plants, in fact, do grow faster under certain colors of light. The reason for this is that chloroplasts can only absorb certain wavelengths of light because of the pigments they contain. There are 2 photosystems in plants called photosystem I and II. PS I absorbs light on the wavelength of 700nm while PS II absorbs 680nm because of their utilization of chlorophyll A and B. These two frequencies are known as the peak absorption points because they are the wavelength at which light is most strongly absorbed. Different forms of chlorophyll and other photosynthetic pigments absorb other frequencies of light, but PS I and PS II are what is used for synthesizing ATP and reducing power which plants use to grow. The visible spectrum of light is between 380-750nm for humans. Therefore PS I and II require red light to perform photosynthesis. As stated before, however, there are other photosynthetic pigments present in plants and other phototrophic species such as bacteria and algae that absorb other pigments. An example of this is the carotenoid pigment that absorbs primarily blue light as do chlorophyll A and B. Blue light contains more energy than red light but for PS I and II and plant growth both are needed. Studies in the 50's showed that the rate of photosynthesis increased under far-red and red light compared to other frequencies.
Green plants will grow SLOWER or not at all under green light. Basically, green is the only brand of light that the plant's chloroplasts doesn't use. That is why it is the only color reflected from the leaf, and is what we see.
Yes they do, certain colors provide certain vitamins/minerals and only sunlight has all the vitamins/minerals needed. Plants get vitamins and minerals from soil, not sunlight. Plants grow slowest under green light because chlorophyll reflects green light (which is why they look green). Plants grow faster under red or blue light. Sunlight is a mixture of red, green and blue light. Plants do get vitamin D from the sun, as do people. Plants do not generate…
Plants, in fact, do grow faster under certain colors of light. The reason for this is that chloroplasts can only absorb certain wave lengths of light because of the pigments they contain. There are 2 photo systems in plants called photo system I and II. PS I absorbs light on the wavelength of 700nm while PS II absorbs 680nm because of their utilization of chlorophyll A and B Green plants will grow SLOWER or not…
Plants reflects the colors of light that they do not absorb This reflected light determines their color Why are there few blue colored plants?
Can only certain colors appear in an element's atomic emission spectrum indicates that only certain frequencies of light are emitted?
I need to know why darker colored cans heat up faster than lighter colored cans but it is for a yr 8 assignment thanks?
In a spectrometer What physical phenomenon is causing each dye to absorb light of one or more colors and transmit light of other colors?
In a spectrometer, each dye will absorb light of certain colors and transmit light of other colors because of the nature of the atoms of the object and the frequency of the light. If the frequency of the light is the same as the frequency that the electrons in the atoms are vibrating, then the light will be absorbed and transferred into vibrational motion.