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What is an example of a lab experiment that shows the variation of the photosynthesis efficiency in relation to different photic energy frequencies to which the reaction is exposed? Was it expected that green light frequency favored the reaction?
The experiment: Plants of similar species and ages are placed each under (respecting their photoperiods) light sources emitting only one of the colors of the light spectrum (violet, anil, blue, green, yellow and red). The experiment is implemented with each of the colors and after days each plant's development is compared. Those plants whose development was normal performed satisfactory photosynthesis whereas those with abnormal development underused the offered light.
Chlorophyll is green because it reflects the green light frequency, i.e., it does not "use" the green range of the electromagnetic spectrum. Thus green light does not favor photosynthesis (curiously green is the light that plants "dislike").
Which of the vertebrate classes (a) are 'warm-blooded', (b) reproduce by laying eggs? (a) Birds and mammals are 'warm-blooded'. (b) Fish, Amphibia, Reptiles
Animal Tissue Culture: The term tissue culture refers to the culture of all organs, tissue fragments and dispersed cells on a suitable nutrient medium. It may be divided into
Demonstration of immune responses and biomarkers: This may be done either on the basis of sero-conversion study on paired sera samples or by challenge (protection) test.
Which of the following does not support evolution? biogeography the fossil record comparative anatomy radiometric dating All of these choices are evidence of/support evolution.
Some organisms contain enzymes that condense a fatty alcohol and a fatty acid to generate wax esters. Draw decanol, plamitic acid (C16:0 fatty acid) and the resulting wax ester gen
Theory of Germplasm (i) 'August Weismann' (1889) suggested the theory of continuity of germplasm. (ii) He referred to the reproductive cells as germplasm and
What is plaque? Plaque is a film over the teeth and having of saliva, mucus, bacteria and the substances they produce. It may also have mineral salts of calcium and magnesium.
Insects - Hormones in Growth and Reproduction In insects hormones regulate moulting and metamorphosis. The larvae or nymphs which hatch out of the eggs undergo regular moultin
Biota of Lakes Lakes exhibit life zones. So far you have been reading about the vertical zonation of lakes. The lakes can be divided into horizontal zones as well. This divis
Biotin Biotin forms long, colourless needles or a white crystalline powder. It is sparingly soluble in cold water, but more soluble in hot water and dilute alkalis. Biotin is s
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