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NEET Questions / Botany / Transport in Plants / How Do Plants Absorb Water
A plant with a mutation that disables aquaporins in its root cells would likely exhibit:
Complete cessation of water uptake.
Enhanced water uptake due to increased reliance on the apoplast pathway.
Reduced rate of water uptake but not complete cessation.
No change in water uptake as aquaporins are primarily involved in transpiration.
The column of water within xylem vessels of tall redwood trees can reach remarkable heights without breaking. What primary property of water contributes to this phenomenon?
Adhesion
Surface tension
High density
Cohesion
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
Which force is primarily responsible for the continuous water column within the xylem vessels of plants, enabling them to transport water against gravity?
Gravitational force
Adhesive force
Osmotic force
Cohesive force
If the cohesive forces between water molecules were significantly weaker, what would be the most likely consequence for tall trees?
Increased water absorption
Enhanced transpiration rate
Faster growth
Inability to transport water to great heights
The tensile strength of the water column in xylem is crucial for upward water movement in plants. This strength is primarily a result of which intermolecular interaction?
Ionic bonding
Van der Waals forces
Hydrophobic interactions
Hydrogen bonding
Which pathway applies least resistance to the movement of water?
Apoplast pathway
Symplast pathway
Trans membrane pathway
Vacuolar pathway
One factor responsible for water rise up to 100 m of tall plant, is
Root pressure
Transpiration pull
Pulsation
Diffusion
In which of the following path, flow of water occurs from cell to cell through their protoplasm?
Apoplast pathway
Symplast pathway
Both (a) and (b)
Transmembrane pathway
What are the location of casparian strips-which interrupts the movement of water inside a root?
Endodermis
Pericycle
Cortex
Hypodermis