Question

Match the lists and find the correct option

	LIST I		LIST II
A.	Henry Dixon	1.	Bioelectric response
B.	Slatyer and Taylor	2.	Cohesion tension theory
C.	Levitt	3.	Active proton concept
D.	J. C. Bose	4.	Water potential
		5.	Term physiology

• A. A - 3, B - 4, C - 2, D - 1
• B. A - 1, B - 2, C - 4, D - 3
• C. A - 4, B - 1, C - 2, D - 3
• D. A - 2, B - 4, C - 3, D - 1

Answer 1

The correct option is D A - 2, B - 4, C - 3, D - 1

Cohesion tension theory was proposed by John Joly and Henry Horatio Dixon in the year 1894. The theory has two fundamental features such as (i) cohesion of water and adhesion between water and xylem tiusses, (ii) Transpiration pull. This theory explains plants which is responsible for the movement of water column upward.

Water potential term was coined by Slatyer and Taylor in the year 1960. He proposed that chemical potential of water be used as a property of water in plant soil air system.

Levitt in 1974 gave a altered form of the mechanism of stomatal movement which was called the proton - potassium pump hypothesis. This hypothesis explains K+ ions are transported into the guard cells in the presence of light. This is termed as active proton concept.

J. C. Bose invented rare, elegant apparatus for together measuring bioelectric potentials and for computing very small movements in plants. Bose concluded that plants and animals have substantially the same essential physiological mechanisms. Based on electrical signalling all plants co-ordinate their movements and responses to the environment.

So, the correct answer is option D.