define the term transpiration design an experiment to demonstrate this process

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Define the term transpiration . Design an experiment to demonstrate this process.

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Updated on : 2022-09-05

Transpiration is the loss of water molecules in the form of water vapour through pores of the plants like the stomata and lenticels.

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Experiment: When a polythene bag is tied around leaf of a plant and left for a number of hours, we observe water droplets accumulated inside the bag.

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85 7 SIMILAR QUESTIONS

Which of the following is not the purpose of transpiration process?

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Transpiration is a process related to

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If transpiration doesn't take place in plants, which process will also not occur?

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Which of the following processes keeps plant cool?

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Which is the process mainly involved in transpiration?

Medium View solution > MORE FROM CHAPTER Transport in Plants View chapter >

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Transpiration

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Transpiration and Photosynthesis – A Compromise

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Define the term transpiration. Design an experiment to demonstrate this process.

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Define the term transpiration. Design an experiment to demonstrate this process.

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Transpiration :

Transpiration is the process of loss of water in the form of water vapour through the aerial parts of the plant.

Most of the transpiration is carried out by the leaves with the help of stomatal pores on it.

Transpiration creates a suction force that helps in the upward movement of water and minerals from roots to different parts of the plants.

It maintains osmosis and keeps the cells rigid.

Experiment no 1: Bell jar experimentProcedure :

Take a well watered potted plant and keep the plant on the glass plate and cover it with a bell jar.

Apply vaseline or grease at the base of the bell jar to prevent outer air from coming inside, making it air tight.

Keep the whole apparatus in light for about two to three hours and observe.

Observation :

Few waterdrops are observed on the inner side of the bell jar.

Result :

Transpiration occurs from potted plants in the form of water vapour which condenses to form water droplets.

Experiment no 2 : Cobalt chloride experiment.Procedure :

A plant with broad leaf is taken and is covered with the polythene bag to escape the water vapour from the pot.

The entire set up is placed in the bell jar, containing the piece of cobalt chloride paper.

Another control setup is designed as a control experiment without the plant but with cobalt chloride paper.

Observation :

The change in the cobalt chloride paper, present in the first bell jar ,having the plant turns from blue to pink. This is because the cobalt chloride paper reacts with water vapour, lost from the plant.

But no color change was seen in the second bell jar, without the plant.

Result :

The change in the cobalt chloride paper ensures the occurrence of transpiration in the plant.

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Define the term transpiration. Design an experiment to demonstrate

Define the term transpiration. Design an experiment to demonstrate this process.

Previous Question Next Question Question :

Define the term transpiration. Design an experiment to demonstrate this process.

Answer :

Transpiration is defined as the evaporation of excess water from the stomata present in the leaves of plants. Experiment to show transpiration process: Procedure:i Take a healthy potted plant and cover the pot with the help of rubber sheet. Aerial parts remain uncovered ii Keep the plant on glass plate and cover it with a bell jar. iii Apply Vaseline at the base of bell jar to prevent outer air coming inside. iv Keep the whole apparatus is light and observe for sometime.Observation : Water drops appear inside the bell jar Result : Transpiration occurs from potted plant.

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define the term transpiration design an experiment to demonstrate this process

Mohammed

Define the term transpiration . Design an experiment to demonstrate this process.

Define the term transpiration . Design an experiment to demonstrate this process.

Which of the following is not the purpose of transpiration process?

Transpiration is a process related to

If transpiration doesn't take place in plants, which process will also not occur?

Which of the following processes keeps plant cool?

Which is the process mainly involved in transpiration?

REVISE WITH CONCEPTS

Transpiration

Transpiration and Photosynthesis – A Compromise

Define the term transpiration. Design an experiment to demonstrate this process.

Define the term transpiration. Design an experiment to demonstrate

Define the term transpiration. Design an experiment to demonstrate this process.

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