A researcher observes that water absorption by roots is significantly reduced when the plant is treated with a respiratory inhibitor. Which of the following best explains this observation?
Respiratory inhibitors directly block aquaporin function, preventing water movement.
Respiration is essential for maintaining root cell turgidity, which is directly linked to water absorption.
Active transport of ions into the root cells requires energy, creating a water potential gradient that drives water uptake.
Inhibition of respiration disrupts the cohesion-tension theory, preventing water movement through the xylem.
Related Questions
A thin film of water is held by the soil particles under the influence of internal attractive force. It is called
Hygroscopic water
Gravitational water
Combined water
Capillary water
Which of these factors LEAST affects the rate of water absorption by roots?
Soil water potential
Root hair density
Temperature
Light intensity
Which one of the following acts as a barrier in a apoplastic pathway?
Epidermis
Plasmodesmata
Casparian strips
Metaxylem
Which part of root absorbs both water and minerals?
Root cap
Root hairs
Phloem
Xylem
Which one is not the job of zone of cell differentiation in roots?
Mineral uptake
Water uptake
Carbon dioxide uptake
Oxygen uptake
Imagine a thin glass tube dipped in water. The water rises in the tube due to adhesion. In tall trees, a similar phenomenon helps maintain the water column, but a different property of water plays the major role in preventing the column from breaking under its own weight. What is this property?
Capillary action
High specific heat
Low viscosity
Cohesion
Absorption of water by root hairs is an example for?
Passive transport of water
Energy is not utilized
Special type of diffusion of solvents
All of these
Water in the soil available to plants is
Gravitational water
Capillary water
Hygroscopic water
None of these
How much percentage of absorbed water in plants is used in the process of photosynthesis?
Less than 1%
10-20%
50-60%
90-95%
The Casparian strip in the endodermis is primarily made of:
Lignin
Cellulose
Suberin
Pectin
