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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
How do non-green plants such as fungi and bacteria obtain their nourishment?
Complete the following by filling the blanks 1 to 5 with appropriate words/terms/phrases:
To test the leaf for starch, the leaf is boiled in water to ______ (1). It is next boiled in methylated spirit to ______ (2). The leaf is placed in warm water to soften it. It is then placed in a dish and ______ (3) solution is added. The region which contains starch, turns ______ (4) and the region which does not contain starch, turns ______ (5)
Given alongside is the diagram of an experimental set-up:
What alteration (s) will you make in it for obtaining expected result?
A potted plant was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours. One of the leaves was covered with black paper in the centre. The potted plant was then placed in sunlight for a few hours.
Write a balanced chemical equation to represent the process of photosynthesis.
Chloroplasts are called energy converters.
Name the following:
The green colouring matter of the plants.
Complete the following sentence with appropriate word:
Carbon dioxide enters the leaf through _______.
Write the overall chemical equation for photosynthesis.
Give reasons/explain:
During the starch test, the leaf is boiled in water.
