Uphill transport is a type of
Active transport
Passive transport
Facilitated diffusion
Simple diffusion
Related Questions
Which of the following is the primary pathway for water movement in plants?
Apoplast
Symplast
Transmembrane
Vacuolar
Water can be absorbed from a hypertonic external solution by
Withdrawing more water from the external solution
Auxin treated cells
Adding a buffer in the external solution
Cytokinin treated cells
Which type of soil has least water retaining capacity?
Sandy soil
Black or alluvial soil
Laterite soil
Loan soil
Cell A has bars and cell B has bars. The movement of water will be from
Cell A to cell B
Cell B to cell A
Data insufficient
Water can not move in negative value of \Psi {W^\;}
Water potential and osmotic potential of pure water is
Zero and zero
100 and zero
100 and 100
Zero and 100
Entry of water from soil into the plant is due to the gradient of?
Turgor pressure
Wall pressure
Pressure potential
Water potential
The cohesion-tension theory explains the ascent of sap in tall trees. Which of the following factors LEAST contributes to the maintenance of the continuous water column?
Active transport of water into xylem vessels
Cohesion between water molecules
Adhesion of water molecules to xylem walls
Transpiration pull generated by evaporation from leaves
A plant cell with a water potential of -0.6 MPa is placed in a solution with a water potential of -0.8 MPa. Which of the following will occur?
Water will move out of the cell, causing plasmolysis.
Water will move into the cell, causing turgor pressure to increase.
There will be no net movement of water.
The cell will burst due to excessive water uptake.
Cell 'A' has Mpa cell 'B' has Mpa and cell ‘C’ has Mpa. Then water
diffuses from
A to B and C to B
B to A and A to C
A to B and B to C
C to A and A to B
A xerophyte with a CAM pathway faces prolonged drought conditions. Which of the following physiological responses would be LEAST likely to occur?
Increased stomatal aperture during the day
Accumulation of organic acids at night
Reduced transpiration rates
Increased root-to-shoot ratio
