Why leaves are green ? If the leaves have any other colour what happens to the amount of starch ?
Answers
Answer:
Leaves are green due to the presence of a green coloured pigment called chlorophyll. The main function of chlorophyll is to perform photosynthesis in the presence of sunlight. As summer fades into fall, the days start getting shorter and there is less sunlight. This is a signal for the leaf to prepare for winter and to stop making chlorophyll. Once this happens, the green color starts to fade and the reds, oranges, and yellows become visible.
Iodine is an indicator that turns blue-black in the presence of starch. The leaf that was in the light turns blue-black, which demonstrates that the leaf has been performing photosynthesis and producing starch. Try the test again with a variegated leaf (one with both green and white) that has been in the sunlight.
Hope it helps you.
Answer:
Chlorophyll is responsible for the green presence of leaf.
Explanation:
Leaf color is green due to the green pigment which is present in the upper side of the leave know as chlorophyll. The main function of chlorophyll is to carry out photosynthesis in the presence of sunlight. As summer fades into fall, the days get shorter and the sunlight becomes less. This is the signal that the leaves are preparing for winter and stop producing chlorophyll. When this happens, the green color starts to fade and you can see red, orange and yellow.
Iodine turns blue-black in the presence of starch which is used as an indicator . Exposed leaves turned blue-black, indicating photosynthesis and starch production. Repeat the experiment with colorful leaves (both green and white) in sunlight.
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