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प्रश्न
Explain why the grass in your lawn becomes greener if you add a little fertilizer to it, but it dies if you add a lot of it.
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उत्तर
If a little fertilizer is added, it provides minerals and other nutrients so the leaves synthesize more chlorophyll and appear greener. If a lot of fertilizer is added, it forms a hypertonic solution resulting in plasmolysis and consequently wilting of parts of the plant. Ultimately the plant dies.
संबंधित प्रश्न
fill in the blanks with suitable functions: Xylem and __________.
The diagram given below represents an experimental set – up to demonstrate a certain process. Study the same and answer the questions that follow:
Define the above named process.
The diagram given below represents an experimental set – up to demonstrate a certain process. Study the same and answer the questions that follow:
what control experiment can be set up for comparison?
The diagram given below represents an experimental set – up to demonstrate a certain process. Study the same and answer the questions that follow:
Keeping in mind the root- hair, cell and its surroundings, name the parts that correspond to
(1) concentrated sugar solution
(2) parchment paper and
(3) water in the beaker.
The diagram given below represents an experimental set-up to demonstrate a certain process. Study the same and answer the questions that follow:
Mention two advantages of the process to the plants.
Name the following:
The membrane which allows water molecules to pass through, but not sugar molecules.
Very short answer question.
What is osmotic pressure?
Define the term:
Wall pressure
Distinguish between Diffusion and Osmosis.
Which of the following means of transport need expenditure of ATP?
