What is the aim of this experiment?
ii) Why is variegated leaf taken for the experiment?
iii)Why do green parts of the leaf turn blue-black?
Answers
Answer:
"An experiment should be conducted for a particular reason. A statement which explains what the experiment is attempting to achieve is known as an aim. The prediction that the scientist make who is undertaking the experiment is known as the hypothesis
Variegated leaf are taken for the experiment of chlorophyll because the the part of the leaf chlorophyll is present can be used for the experiment and the rest of the leaves can be used for the test result.
The green parts of the variegated leaf have chlorophyll in it. Only those sections may thus carry out photosynthesis and generate food (starch). Starch reacts with iodine in the presence of iodine and gives it a blue-black color.
Explanation:
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Explanation:
Uses. A variegated leaf is useful in conducting experiments to show that chlorophyll is needed for photosynthesis to happen. They are also popular in horticulture
The variegated leaf experiment helps to exhibit that chlorophyll (pigment present in the green parts of plants) is necessary for photosynthesis. ... Parts of the leaf with the chlorophyll should turn blue-black when iodine is added showing the starch is present. This, in turn, proves that photosynthesis happened
Additional Information: The inner part of the leaf turns blue-black on adding iodine solution which was originally green and shows that starch is present in the inner part of the leaf. Through this observation, we can conclude that photosynthesis takes place in the presence of chlorophyll to make starch.