Biology, asked by mitalikumari9580, 1 year ago

why do we boil leaf in alcohol what factor affect rate of photosynthesis


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Answers

Answered by princess108
0
to show that starts is produced in the in Green Leaves during photosynthesis

pluck A green leaf from a plant which has been growing in a bright sunlight. put the leaf in a beaker with boiling water and boil boil the leaf for about 2 to 3 minutes so as to destroy the cytoplasm, denature the enzymes and make the leave for more permeable to iodine solution. take the leave out of the beaker and place It Inside a tube containing boiling methylated alcohol. put the tube of alcohol in the beaker of boiling water. Do not work the alcohol tube directly over the flame.
after 10 minutes, the leaf will lose its chlorophyll entirely and will turn almost colourless and transparent.
wash the leaf with water to remove the alcohol.
now put the leaves in a dish and poor a few drops of iodine solution over it. soon it becomes blue black in colour this indicates the presence of starch in the leaf.
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