Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
The difference between traspiration and guttation are as follows :
| transpiration | guttation |
| 1. It is the loss of water in the form of water vapour usually during day time . | 1. It is the loss of water in the form of a liquid during night time . |
| 2. It occurs through stomata , cuticle and lenticels. | 2. It occurs through hydathodes. |
संबंधित प्रश्न
Transpiration pull will be maximum under which set of the following conditions?
Given below is an apparatus which was setup to investigate a physiological process in plants. The setup was placed in bright sunlight. Answer the questions that follow:
- Name the process being studied. Define the process.
- Why was the pot enclosed in a rubber sheet?
- Mention two external factors which can accelerate the above process.
- List two adaptations in plants to reduce the above process.
- Draw a neat, labelled diagram of a stomatal apparatus.
The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental setup was placed in bright sunlight. Study the diagram and answer the following questions.
Define the above mentioned process.
Give Reasons for the following:
Transplanting of seedlings to a flowerbed in the evening is better than doing so in the morning.
What is meant by the term transpiration stream?
What are the disadvantages of transpiration?
The following diagram is set up to demonstrate an experiment.
Five plants A, B, C, D, and E were placed in a beaker containing water. The water in each beaker was covered with a layer of oil. The leaves were removed from plant D in plant B, upper surfaces of all the leaves were covered with Vaseline, in-plant C the lower surfaces of all the leaves were covered with Vaseline and plant E was exposed to strong light. The beakers were then left for a few hours and at the end of the experimental period, weights of each beaker were taken.
Write the correct answer out of the five available choices given under each question:
I. In which beaker would you expect the greatest decrease in weight?
(i) A (ii) B (iii) C (iv) D (v) E
II. In which beaker the change of weight would be minimum?
(i) A (ii) B (iii) C (iv) D (v) E
III. Which plant would remain healthy for a longer period of time?
(i) A (ii) B (iii) C (iv) D (v) E
IV. In this experiment which plant can be considered as the uncontrolled one?
(I) A (ii) B (iii) C (iv) D (v) E
V. The difference of weight would b maximum between:
(i) A and B (ii) A and C (iii) A and D (iv) A and E (v) D and E
Complete the following sentence with appropriate word:
Transpiration is the loss of water__________________from the leaves of the plant.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The pH of the guard cells increases during day time
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Evaporation is a physiological process
