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प्रश्न
Choose the correct answer:
More water loss in plants is the cause of wilting. This can be checked by ____________
पर्याय
Keeping plant in bright light
Spraying alcohol on the plant
Layering the bottom with Vaseline
Giving more fertilizer to the soil
उत्तर
More water loss in plants is the cause of wilting. This can be checked by layering the bottom with vaseline
APPEARS IN
संबंधित प्रश्न
Transpiration is defined as:
The set up shown alongside was kept in sunlight for an hour. It was observed that drops of water appeared on the inside of the polyethylene bag.
- Name the process which is being demonstrated.
- Why was the pot and its soil left uncovered by the polythene bag?
- Why was the pot left in the sunlight?
- Suppose the pot in this experiment was placed inside a dark room instead of placing it in sunlight for some time. What difference will be noticed?
Fill in the blank with the suitable term given below:
Transpiration is more when the wind is blowing _____.
Give a reason.
What happens to the movement of the air-bubble if the apparatus shown above is kept in sunlight.
Comment on the following statement:
A well-watered potted plant shows wilting of leaves on a hot sunny day.
A well watered healthy potted plant with variegated leaves was kept in darkness for about 24 hours. It was then set up as shown in the diagram and exposed to light for about 12 hours. At the end of this time, leaf x and y were tested for starch. Study the diagram and answer the questions that follow:
(i) Why was the plant initially kept in darkness for 24 hours?
(ii) What is the function of sodium hydroxide solution in the flask?
(iii) Select the correct leaf from the five available choices shown in the diagram as a, b, c, d and e. Rewrite the correct answer by filling in the appropriate letter for the questions that follow:
1. After the starch test, leaf x would look like ______.
2. After the starch test, leaf y would look like ______.
(iv) The experiment with leaf y shows that photosynthesis requires the presence of certain factors. Mention any one factor.
What type of transpiration is possible in the xerophyte Opuntia?
Boojho’s uncle was hospitalised and put on dialysis after a severe infection in both of his kidneys.
What is dialysis?
The radio labelled carbon in carbon dioxide supplied to potato plants in an experiment was seen in the tuber eventually. Trace the movement of the labelled carbon dioxide.
Define the following term:
Wilting
