How can you Prove that Light is Necessary for Photosynthesis

Light is Necessary for Photosynthesis


  1. i) De-starch a potted plant by keeping it in dark for two days.


  1. ii) Then transfer it to light and select two leaves of this plant for experiment


iii) Now wrap one by black paper.


  1. iv) Wrap other by black paper but a L shaped part of the paper is cut out so that light can pass from here.


  1. v) Now put the potted plant to light for 6 hours


  1. vi) It will observe that leaf which did not receive any light is free of starch and brown.


vii) Second leaf light could pass through L shaped area. Only this area turn dark blue while other part remain brown.


viii) This shows that light is necessary for photosynthesis.


Note: Choosing the form of training, most stop at full-time. Of course, there’s nothing to think about, because in full-time education the student receives a full amount of information, as well as a lot of interesting additions, he can only not sleep in pairs for the successful delivery of each session. But what should one do if one does not have a great time to visit the university on a daily basis because of his employment at work, in the family and in other spheres of life? So what are the main differences between the two forms of education, and is it so poorly correspondence? First of all, we need to understand: what is the difference between a student and a correspondence student from a student studying at the full-time department? The main difference is related to age. Come mainly adults who are already working in their specialty. They are always more goal-oriented and serious, they have a strong motivation for learning. Unlike most of the full-time students who have just finished school.

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