Question

Find the correct order for an instrument used for measuring (i) Transpiration (ii) Size of stomata (iii) Atmospheric pressure (iv) Osmosis
A. Potometer, manometer, porometer, osmometer
B. Manometer, potometer, porometer, osmometer
C. Barometer, manometer, potometer, osmometer
D. Potometer, porometer, manometer, osmometer

Answer 1

Hint: Transpiration is the process of evaporation of water from the aerial parts of the plants, and stomata are the structure present in the plants for the escape of water and gases, The pressure gradient in the atmosphere is said to be atmospheric pressure, and the osmosis is the movement of solvents from low concentrated solution to high concentration solution.

Complete answer:
Transpiration: As we know that transpiration, in which there is the loss of water from plants, the instrument used to measure the transpiration is called Potometer, and it is also called as transpirometer, and there are two ways to measure, one is indirectly and another one is directly, and the Potometers are also two types, which ate Bubble potometer and Mass odometer, and here this instrument do not measure direct water loss, in turn, it measures the uptake of water, through plant shoot, which is equal to water loss
Size of stomata: Stomata is the openings in the leaves of the plants which are helpful for the exchange of gases, and the size of the pore of the stomata Is measured by the instrument called Porometer, it is measured mainly by opening through it. And there are again two designs, namely static and dynamic designs.
Atmospheric pressure: In order to measure the pressure gradient, in the atmosphere the instrument, which is required is a Manometer, and it is also used to measure the pressure of liquid or gases.
Osmosis: In order to measure the osmosis of the solutions, colloids, and other liquids, the instrument which is used is an osmometer, and there are different types, which include Membrane Osmometers, vapor pressure osmometers, and freezing point depression osmometer.

So the correct option is D.

Note:
The number of stomata to the size of stomata is generally inversely proportional to each other, the number of stomata is usually 121 to 480 per square millimeter, and the size of the stomata is varied with the length of the guard cell, which is 19 to 75 micrometers.