reason

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in certain plants some leaves become yellow.why

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in absence of light,plants develop a yellowish pigment etiolin intead of chlorophyll.d leaves acquire a yellowish color n t stems become pale,thin n long.this is known as d etiolation of plants. Idea

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is it in r sylaabus??????siya??????

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ya,its dere.d answer is given in evergreen candid cheers

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I don't think so Evil or Very Mad

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anita prasad also has it

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in cocise tooo......but only a bit

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Ambili....Where is it in concise??????? Question

PLZZZZZZZZZZ tell me! Idea

i keep staring at it, but rarely notice these things!!! Razz

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its there in the photosynthesis chap of anita prasad..it shud be der in concise too anu...stop staring n get serious..hehee

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i asked concise....

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u said concise has extraa..so how can it miss this??

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its there na..ambili told its there....i dont know where it is!! thts the prob!!!

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in the chapter photosynthesis.......hope in he second page...it is given that leaves turn yellow due to the degeneration of chlorophyll

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haan...so they have not given about that other pigment etiolin na?

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etiolin all are rubish dont break your head with it
our teacher tild it happens when chlorophyll degenerate when starch is removed