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प्रश्न
The chemical substance used to test the presence of starch in the cell of a leaf is ______.
विकल्प
CaCl2
iodine solution
Benedict solution
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उत्तर
The chemical substance used to test the presence of starch in the cell of a leaf is iodine solution.
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संबंधित प्रश्न
An experiment was set up as shown in the figure given below . The twig in the diagram was intact on the plant and it was as such in sunlight for a few hours .
(i) What is the aim of the above experiment ?
(ii) Why was potassium hydroxide placed inside the conical flask ?
(iii) What test would you perform on the leaf inside the flask?
(iv) What is the expected result of the above test ?
(v) Is it necessary to similarly test on outer leaf also ? Giva a reason .
How do non-green plants such as fungi and bacteria obtain their nourishment?
All life owes its existence to chlorophyll. Give reason.
Given alongside is the diagram of an experimental set-up:
- What is the objective of this experiment?
- Will it work satisfactorily? Give reason.
- What alteration(s) will you make in it for obtaining expected result?
- Would you take any steps before starting the experiment? Describe this step and explain its necessity.
Where are the chlorophyll pigments present in a cell?
Why Is Photosynthesis Important in Nature?
Give technical term:
Name only one plant, you are familiar with which has no chlorophyll.
Name two aquatic plants which can be used for the experiment of photosynthesis.
Match the terms given in column A with column B:
| Column A | Column B | ||
| (a) | Chlorophyll | (i) | Removes/absorbs CO2 |
| (b) | Methylated spirit | (ii) | Tests presence of starch |
| (c) | Potassium hydroxide | (iii) | Traps solar energy |
| (d) | Iodine solution | (iv) | Produces oxygen |
| (e) | Water | (v) | Bleaches chlorophyll |
