Q. No.Plasmolysis
Which one is incorrect.
(1) External solution is hypertonic
(2) Water moves out of the cell
(3) Cell membrane shrinks away from it's cell wall
(4) Firstly cell sap comes out then cytoplasmic water.
(1) External solution is hypertonic
(2) Water moves out of the cell
(3) Cell membrane shrinks away from it's cell wall
(4) Firstly cell sap comes out then cytoplasmic water.
What occupies the space between the cell wall and the shrunken protoplast in the plasmolysed cell?
(1) Hypertonic solution
(2) Hypotonic solution
(3) Water
(4) Cytoplasmic content
Plasmolysis is
(1) Usually reversible
(2) Occurs when cell is placed in hypotonic external solution
(3) Shrinkage of cytoplast
(4) All of these
When the cells are placed in a hypotonic solution water movement causes
(1) Osmotic pressure
(2) Turgor pressure
(3) Hydrostatic pressure
(4) Hydrodynamic pressure
Turgor pressure causes
(1) Rupture of animal cell
(2) Responsible for enlargement and extension of plant cell
(3) Pressure against the wall
(4) All of these
Imbibition
Find the incorrect one.
(1) A special type of diffusion
(2) Water is absorbed by solids-colloids
(3) Causing the increase in volume
(4) Absorption of water by seeds, dry wood and cell
Prehistoric man used which of the following methods to split rocks and boulders?
(1) Plasmolysis
(2) Active Transport
(3) Osmosis
(4) Imbibition
Emergence of seedling is due to
(1) Plasmolysis
(2) Active Transport
(3) Osmosis
(4) Imbibition
During Imbibition which of the following is pre-requisite?
(1) Water potential gradient between the absorbent and the liquid imbibed
(2) Affinity between absorbent / adsorbent
(3) Amount of seeds
(4) Both A and B
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