Study the diagram given below and answer the questions that follow:
(a) Name the process being studied in the above experiment.
(b) Explain the process mentioned in (a) above.
(c) Why is oil placed over water?
(d) What do we observe with regard to the level of water when this set up is placed in (1) bright sunlight (2) humid conditions (3) windy day?
(e) Mention any three adaptions found in plants to foster the process mentioned in (a) above.
Study the diagram given below and answer the questions that follow:
(a) Name the process being studied in the above experiment.
(b) Explain the process mentioned in (a) above.
(c) Why is oil placed over water?
(d) What do we observe with regard to the level of water when this set up is placed in (1) bright sunlight (2) humid conditions (3) windy day?
(e) Mention any three adaptions found in plants to foster the process mentioned in (a) above.
(a) The process studied is transpiration.
(b) Transpiration is the process by which plants lose water in the form of water vapour through their aerial parts. Transpiration helps plants to maintain their temperature. It also cools the regions around the plant and creates a suction force that pulls water to great heights.
(c) Oil is placed over water to prevent any water loss by evaporation from the surface of the water.
(d) The level of water will
(1) Reduce in bright sunlight. (due to increased transpiration)
(2) Remain the same in humid conditions. (due to less transpiration)
(3) Reduce on a windy day (due to more transpiration)
( e) Three adaptations in plants to overcome transpiration are:
1. Sunken stomata, e.g. Nerium
2. Fewer stomata
3. Narrow leaves
(a) The process studied is transpiration.
(b) Transpiration is the process by which plants lose water in the form of water vapour through their aerial parts. Transpiration helps plants to maintain their temperature. It also cools the regions around the plant and creates a suction force that pulls water to great heights.
(c) Oil is placed over water to prevent any water loss by evaporation from the surface of the water.
(d) The level of water will
(1) Reduce in bright sunlight. (due to increased transpiration)
(2) Remain the same in humid conditions. (due to less transpiration)
(3) Reduce on a windy day (due to more transpiration)
( e) Three adaptations in plants to overcome transpiration are:
1. Sunken stomata, e.g. Nerium
2. Fewer stomata
3. Narrow leaves
