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TRANSPORT IN PLANTS
Question 71 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
"Osmosis is flow of solution from higher concentration to solution of lower concentration to solution of lower concentration through semi-permeable membrane". Which is incorrect in the statement? ..... [AFMC 1997]
Exact concentration of solution is not given | |
Character of semipermeable membrane is not given | |
Flow of solution is not possible through semipermeable membrane | |
All the above |
Question 72 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Cells absorb water through ..... [AMU 1999]
Osmosis only | |
Imbibition only | |
Both osmosis and imbibition | |
None of the above |
Question 73 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Ability to rise in thin tubes and ability to resist pulling force are respectively ..... [kerala 2012]
Tensile strength and capillarity | |
Cohesion and adhesion | |
Capillarity and tensile strength | |
Adhesion and capillarity |
Question 74 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
During absorption of water by roots, the water potential of cell sap is lower than that of ..... [BHU 1994]
Pure water and soil solution | |
Neither pure water nor soil solution | |
Pure water but higher than that of soil solution | |
Soil solution but higher than that of pure water |
Question 75 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Stomata open by ..... [KCET 2012]
Increasing solute concentration in guard cells | |
Weakening of cell walls of guard cell to allow them to stretch | |
Increasing water potential of guard cells | |
Decreasing the solute concentration of guard cells |
There are 75 questions to complete.