Advertisements
Advertisements
प्रश्न
The rate of transpiration is determined with a/an ______.
विकल्प
potometer
evaporimeter
atmometer
perimeter
Advertisements
उत्तर
The rate of transpiration is determined with a/an potometer.
Explanation:
A potometer (such as Ganong’s potometer) is a specialised laboratory instrument used to measure the rate of water uptake by a leafy shoot, which is directly proportional to the rate of transpiration. It functions by tracking the movement of a tiny air bubble along a graduated capillary tube as the plant transpires and draws water. In contrast, evaporimeters and atmometers measure overall evaporation from open surfaces, while a perimeter is used in ophthalmology to test visual fields.
APPEARS IN
संबंधित प्रश्न
One of the internal factors which affect the rate of transpiration is
Most of the transpiration in tall trees occurs through
List the four advantages of transpiration to the plants.
Choose the correct answer from the four options given below :
Which one of the following does not affect the rate of transpiration ?
Expand the following biological abbreviations :
(i) ABA
Expand the following biological abbreviations :
IAA
Name the following.
The instrument used for measuring the rate of transpiration.
Briefly explain how the rate of transpiration is affected by:
The humidity of the atmosphere.
Give a reason/suitable explanation.
Transpiration increases with the velocity of the wind.
