Transpiration Welcome to your Transpiration 1. In the mechanism of opening and closing of stomata, the important factor is The starch content of the cells The presence of Chloroplast in the guard cells The protein content of the cells The turgid and flaccid state of the guard cells2. Transpiration pull will be maximum under which of the following conditions? Open stomata, high humid atmosphere and dry soil Open stomata, dry atmosphere and moist soil Closed stomata, dry atmosphere and dry soil Open stomata, high humid atmosphere and well irrigated soil3. Most of the transpiration in tall trees occurs through Bark Stomata Cuticle Lenticels4. Plants lose water by guttation when Rate of transpiration is high Soil is wet and and the atmosphere is humid Soil is wet and and the atmosphere is dry Soil is dry and and the atmosphere is dry5. If the rate of transpiration becomes more than the rate of photosynthesis, plants will Grow more vigorously because more energy will be available Stop growing and gradually die of starvation Continue to live, but will not be able to store food be killed instantly6. Guttation is the elimination of excess of water from plants through Hydathodes Wounds Lenticels Stomata7. Stomata open during the day and close at night because Enzymes convert starch into sugar at elevated pH in night Loss of sugar increases osmotic concentration of the cell sap Loss of starch in day time raises OP of subsidiary cells Photosynthesis occurs during day time only8. Transpiration is very low during the storms due to Low temperature during storms None of the above High velocity of wind Presence of moisture in the wind9. In hot summer days, plant cooling is due to Loss of water vapour from leaves Loss of water from entire plant Transport of water in plant Loss of liquid water10. With decrease in atmospheric pressure, the rate of transpiration will increase decrease rapidly remains the same decrease slowly11 out of 10Please fill in the comment box below.
