Advertisements
Advertisements
प्रश्न
Differentiate between Transpiration and Evaporation
उत्तर
| Transpiration | Evaporation | ||
| 1 | It occurs in plants | 1 | It occurs from any free surface and involves living and non-living surfaces. |
| 2 | It is a physiological process. | 2 | It is a physical process. |
| 3 | It occurs mainly through the stomatal pores on plant leaves. | 3 | It is occurs through any free surface |
| 4 | It is controlled by environmental factors as well as physiological factors of plants such as root-shoot ratio and number of stomata. | 4 | It is entirely driven by environmental factors |
APPEARS IN
संबंधित प्रश्न
What are stomata?
An apparatus, as shown below, was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:
- Name the process being studied.
- Explain the process named above in Q.3(a)(i).
- Why was the pot covered with a plastic sheet?
- Suggest a suitable control for this experiment.
- Mention two ways in which this process is beneficial to plants.
- List three adaptations in plants to reduce the above mentioned process.
The loss of water in the form of water vapour through stomata on leaves is known as ___________.
Transpiration is defined as:
(a) State whether the following statement are True or False.
(b) Rewrite the false statement in the correct form by changing either the first or the last word only.
Most transpiration occurs at midnight.
Give suitable explanation for the following:
Cork and bark of trees help in preventing loss of water
Given below is a diagrammatic sketch (surface view) of a stomatal apparatus from a dicot leaf.
(a) Label the parts numbers 1-3
(b) Is this state, open or closed?
(c) Is this stoma, of a dicot leaf or a monocot leaf?
(d) Redraw a sketch of the stomatal apparatus in the state opposite to the one shown here.
Given alongside is the diagram of an experimental set-up to demonstrate a certain phenomenon in plants.
Name the phenomenon being demonstrated.
Give a reason.
What happens to the movement of the air-bubble if the apparatus shown above is kept in dark.
Given alongside is the diagram of an experimental set-up to demonstrate a certain phenomenon in plants.
What is the purpose of putting oil in the test tube?
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:
Why was the pot covered with a plastic sheet?
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:
Mention two ways in which this process is beneficial to plants.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Calcium chloride paper is used to demonstrate transpiration
Name the cell that surrounds the stoma.
What causes the opening and closing of guard cells of stomata during transpiration?
Guard cells are responsible for the opening and closing of stomata.
Will the ascent of sap be possible without the cohesion and adhesion of the water molecules? Explain.
Enlist different advantages of transpiration.
