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प्रश्न
Define the term Vital capacity.
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उत्तर
The largest amount of air that can be expelled following a maximum inspiration. It is the sum of TV, IRV, and ERV and ranges from 4100 to 4600 mL.
संबंधित प्रश्न
Under what conditions do plant transpire more quickly?
Briefly explain, how transpiration helps in upward conduction of water in plants?
Fill in the blank with the suitable term given below:
Transpiration is more when the wind is blowing _____.
How does transpiration help the roots absorb water and minerals from the soil?
Define the three processes by which plants absorb water and minerals from the soil.
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.
The diagram given alongside is an apparatus used to study a particular phenomenon in plants.
(i) Name the apparatus.
(ii) What is it used for?
(iii) What is the role played by the air bubble in this experiment?
(iv) Of what use is the reservoir?
Comment on the following statement:
A well-watered potted plant shows wilting of leaves on a hot sunny day.
Given alongside is the diagram of an experimental set-up to demonstrate a certain phenomenon in plants.
What is the purpose of the spring balance in the set-up?
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:
Explain the process named above in 7.1.
Define the following term:
Transpiration
Why is transpiration called a necessary evil?
Write a note on Transpiration.
Which one is not related to transpiration?
Excessive transpiration is due to ______.
Describe briefly the three physical properties of water which helps in ascent of water in xylem.
Briefly describe the following:
Angina Pectoris
