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प्रश्न
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:
Suggest a suitable control for this experiment.
उत्तर
A control for this experiment will be an empty polythene bag with its mouth tied.
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संबंधित प्रश्न
Under what conditions do plant transpire more quickly?
Give suitable explanation for the following:
Perspiration and transpiration help to cool the body temperature of the organism.
Give a reason.
What happens to the movement of the air-bubble if the apparatus shown above is kept in dark.
Define the following Term:
Transpiration
Boojho’s uncle was hospitalised and put on dialysis after a severe infection in both of his kidneys.
What is dialysis?
Boojho wanted to test the presence of starch in leaves. He performed the following steps.
- He took a leaf and boiled it in water.
- He placed the leaf in a petri dish and poured some iodine over it.
He did not get the expected result. Which step did he miss? Explain.
Why is transpiration called a necessary evil?
Write a note on Transpiration.
The lower surface of leaf will have more number of stomata in a ______.
