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प्रश्न
Name the following:
The pores through which leaves exchange gases.
उत्तर
Stomata
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संबंधित प्रश्न
Name the following:
A plant that has both autotrophic and heterotrophic mode of nutrition.
List the steps of preparation of temporary mount of a leaf peel to observe stomata.
Name two inorganic substances which are used by autotrophs to make food.
Apart from sunlight and chlorophyll, what other things are required to make food by photosynthesis?
What will happen to the rate of photosynthesis on a plant under the following circumstances?
(i) cloudy day in morning but bright sunshine in the afternoon
(ii) no rainfall in the area for a considerable time.
(iii) gathering of dust on the leaves
What are the various conditions necessary for photosynthesis?
Which of the following events does not occur in photosynthesis?
(a) conversion of light energy into chemical energy
(b) reduction of carbon dioxide to carbohydrates
(c) oxidation of carbon to carbon dioxide
(d) absorption of light energy by chlorophyll
The opening and closing of the stomatal pores depends upon:
(a) oxygen
(b) water in guard cells
(c) temperature
(d) concentration of CO2 in stomata
Water absorption through roots can be increased by keeping the potted plants:
(a) in the shade
(b) in dim light
(c) under the fan
(d) covered with a polythene bag
Two green plants are kept separately in oxygen free containers, one in the dark and other in sunlight. It was observed that plant kept in dark could not survive longer. Give reason for this observation.
