Transpiration Welcome to your Transpiration 1. In hot summer days, plant cooling is due to Loss of water from entire plant Transport of water in plant Loss of water vapour from leaves Loss of liquid water2. If the rate of transpiration becomes more than the rate of photosynthesis, plants will Continue to live, but will not be able to store food be killed instantly Stop growing and gradually die of starvation Grow more vigorously because more energy will be available3. Most of the transpiration in tall trees occurs through Stomata Lenticels Cuticle Bark4. Stomata open during the day and close at night because Loss of sugar increases osmotic concentration of the cell sap Enzymes convert starch into sugar at elevated pH in night Loss of starch in day time raises OP of subsidiary cells Photosynthesis occurs during day time only5. In the mechanism of opening and closing of stomata, the important factor is The protein content of the cells The presence of Chloroplast in the guard cells The starch content of the cells The turgid and flaccid state of the guard cells6. Guttation is the elimination of excess of water from plants through Wounds Stomata Lenticels Hydathodes7. Transpiration is very low during the storms due to None of the above Low temperature during storms High velocity of wind Presence of moisture in the wind8. Plants lose water by guttation when Soil is wet and and the atmosphere is dry Soil is wet and and the atmosphere is humid Rate of transpiration is high Soil is dry and and the atmosphere is dry9. Transpiration pull will be maximum under which of the following conditions? Open stomata, dry atmosphere and moist soil Closed stomata, dry atmosphere and dry soil Open stomata, high humid atmosphere and dry soil Open stomata, high humid atmosphere and well irrigated soil10. With decrease in atmospheric pressure, the rate of transpiration will increase remains the same decrease rapidly decrease slowly11 out of 10Please fill in the comment box below.
