Question:
Who coined the term 'root pressure theory'?
Who coined the term 'root pressure theory'?
Show Hint
Root pressure can be observed through phenomena like guttation, where water droplets appear at the leaf margins of certain plants early in the morning.
Updated On: Mar 29, 2025
- Charles Darwin
- Stephen Hales
- J. Priestley
- Julius von Sachs
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
The term 'root pressure theory' was coined by J. Priestley. This theory explains the process by which pressure is generated in the roots of plants, pushing water upward through the xylem vessels. Root pressure is a result of osmotic forces created by active transport of ions into the root xylem.
Key Points: Root pressure is most significant during the night or in conditions of low transpiration. It contributes to the upward movement of water in small plants, but it is insufficient to explain water transport in tall trees.
Was this answer helpful?
0
0
Top Questions on The Root
- When a stem of a plant is cut a few inches above the soil and xylem sap is seen flowing out through the cut end, this exudation is considered evidence for the existence of root pressure. Who proposed the theory of root pressure?
- In which plants oxygen is absorbed through aerial roots?
- The process responsible for facilitating loss of water in liquid form from the tip of grass blades at night and in early morning is
- The product(s) of reaction catalyzed by nitrogenase in root nodules of leguminous plants is/are :
- Sweet potato is a modified
View More Questions
Questions Asked in MHT CET exam
- Evaluate \( i^2 + i^3 + \dots + i^{4000} \):
- MHT CET - 2024
- Geometric Progression
- The solution of the differential equation \( x \cos y \, dy = (x e^x \log x + e^x) \, dx \) is:
- MHT CET - 2024
- Differential equations
- Which of the following causes typhoid fever?
- MHT CET - 2024
- Common Diseases in Human Beings
- If \( X \) is a random variable with the probability mass function (p.m.f.) as follows: \[ P(X = x) = \begin{cases} \frac{5}{16}, & x = 0, \\ \frac{kx}{48}, & x = 1, \\ \frac{1}{4}, & x = 2, \\ \frac{1}{4}, & x = 3, \end{cases} \] then find \( E(X) \):
- MHT CET - 2024
- Probability
Given, the function \( f(x) = \frac{a^x + a^{-x}}{2} \) (\( a > 2 \)), then \( f(x+y) + f(x-y) \) is equal to
- MHT CET - 2024
- Permutations
View More Questions