Transpiration Biology - Transpiration

Transpiration helps in creating ________ Force and in eliminating excess ________

Closing of ________ and shedding of leaves reduce ________

Transpiration is the loss of water as water ________ from the ________ parts of the plant.

Ganong's potometer is designed to measure the rate of water ___________ (i) ___________ by a plant, which indicates the rate of ___________ (ii) ___________ . However, it has limitations, including the inability to measure transpiration under ___________ (iii) ___________ environmental conditions. The rate of transpiration is affected by several factors such as ___________ (iv) ___________, ___________ (v) ___________ , and light intensity, all of which can alter water loss in plants.

Transpiration plays a vital role in plants by (i) ___________ heat, aiding in (ii) ___________ uptake through the roots, and maintaining (iii) ___________ within the plant tissues. This process is crucial for (iv) ___________ , as it helps transport water and nutrients. Moreover, transpiration is essential for (v) ___________ regulation within the plant.

Loss of water as droplets from the margins of certain leaves.

The structure in a leaf that allows guttation.

Any two parts of a leaf which allows transpiration.

The apparatus to record the rate of transpiration in a cut shoot.

A plant in which the stomata are sunken.

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:
List three adaptations in plants to reduce the above mentioned process.

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.

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.

Given ahead is the diagram of an experimental set up to study the process of transpiration in plants. Study the same and then answer the questions that follow:


Is the experimental leaf a monocot or a dicot? Give a reason to support your answer.

Column I	Column II
A. Lenticels	(i) An indicator of moisture
B. Cobalt chloride	(ii) Sunken stomata plant
C. Nerium	(iii) Minute openings on the woody stems
D. Guard cells	(iv) Kidney shaped cells that surround the stoma

 

Given below is the diagram of an apparatus used to study a particular phenomenon in plants:
What happens to the movement of the air-bubble if the apparatus is kept:
(i) In the dark
(ii) In sunlight
(iii) In front of a fan
Give a reason in each case.

Differentiate between guttation and bleeding in plants.

Briefly explain how the rate of transpiration is affected by
Intensity of light

Droplets of water may sometimes be seen along the margins of the leaves of a banana plant, growing in wet soil, in the mornings. Are these dew drops? Comment upon your answer.

What is lenticular transpiration? Mention one major difference between lenticular transpiration and stomatal transpiration.

What is a photometer?

Suppose you have a small rose plant growing in a pot. How would you demonstrate transpiration in it?

Most transpiration occurs during midday.

Some desert plants have sunked stomata on their leaves.

Atmospheric humidity promotes transpiration from a green plant.

Hydathodes are similar to stomata in plant physiology.

Potometer is an instrument used for Demonstration of transpiration occurring from the lower surface of a leaf.

Arrange and Rewrite :
Water vapour, Soil water, Leaves, Ascent of Sap.

Choose the Odd One Out :
Stomata, Cuticle, Lenticels, Hydathodes.

Choose the Odd One Out :
Cuticular transpiration, Lenticular transpiration, Stomatal transpiration, Guttation.

Choose the Odd One Out :
Transpiration, Photosynthesis, Phagocytosis, Guttation.

Arrange and Rewrite :
Wounded Plant Tissue, Xylem Sap, Bleeding, Pressure Difference, Accumulation of Sap.