what is light? what property of light to we perceive when we see different colors? what are pigments? what molecules act as pigments in the light dependant reactions of photosynthesis?thanks so much...bio exam tomorrow =[
1) light is a source of energy that is utilized by plants and autotrophs. light energy cannot be used as such, so it should be converted into usable chemical energy 2) the dispersion property of light enables us to see different colours of white light (when it passes through prism) visible light range is essential for photosynthesis 3) A pigment is any substance that absorbs light. the colour of the pigment comes from wavelength of light reflected 4) Chlorophyll (chlorophyll a and chlorophyll b), Xanthophylls Carotenoids are some pigments that participate in photosynthesis other molecules which participate in light reaction are plastocyanin, plastoquinone, cytochrome complex this site explains photosynthesis very well. you can refer it! best wishes for your exam
once you do experiments in technology, you ought to have some thought with regard to the character of the variables in touch and how, specially, they have interplay on your gadget. do you recognize how easy impacts photosynthesis? Or to place it yet in any different case, are all wave lengths (shade) of sunshine of equivalent effect in photosynthesis? Why did you %. the lighting fixtures which you probably did? it is not likely significant that one is incandescent and yet another florescent.... it shouldn't effect photosynthesis. what's significant is the wave lengths of sunshine (shade distributions) that are popping out of the easy source and hitting the plant. Do you have the spectral wavelengths emitted from each of your easy bulbs? That assistance may be on line. If no longer, then you definately won't have plenty to assert on the tip of your test with regard to the reason for any adjustments you come across. yet another subject is that the intensity of sunshine ought to be, if a threat, a similar from each easy source on your plant. perhaps an trouble-free digicam easy meter ought to a minimum of try for this, so the lighting fixtures may be located on the mind-blowing top over the plant. Why do you like 5 supplies of easy? Why no longer %. easy bulbs that are black easy, blue, eco-friendly, crimson.... and then for a administration, no easy? bear in recommendations the chippie's adage.... degree two times, cut back as quickly as. it somewhat is extremely authentic of sturdy experiments.
