Absorption by Roots Welcome to your Absorption by Roots 1. When a plant wilts, the sequence of events is as follows: Exosmosis, plasmolysis, temporary and permanent wilting None of the above Exosmosis, plasmolysis, deplasmolysis, temporary wilting Exosmosis, deplasmolysis, plasmolysis, temporary and permanent wilting2. Osmosis involves Cell to cell movement of water All the above Active absorption of water through roots Movement of water through cortical cells3. Marine fish when thrown under tap water bursts because of Exosmosis Plasmolysis Endosmosis Diffusion4. Water will be absorbed by the root hairs when: Concentration of solutes in the soil is high Concentration of solutes in the cell sap is high None of the above The plant is rapidly respiring5. In the process of Osmosis in a cell: Both protoplasm and cell wall act as a membrane Only cell wall acts as a membrane The entire protoplast acts as a membrane Only outermost layer of protoplast acts as a membrane6. When cell is fully turgid, which of the following will be zero? Suction pressure(SP) or Diffusion pressure Deficit (DPD) Wall pressure Osmotic pressure Turgor pressure7. Osmosis involves diffusion of Suspended particles from higher to lower concentration Molecules or ions from the more concentrated solution to the less concentrated solution Suspended particles from lower to higher concentration Solvent particles from the less concentrated solution to the more concentrated solution8. The space between the cell wall and plasma membrane in a plasmolysed cell is filled with Isotonic solution Hypotonic solution Hypertonic solution Water9. Plasma membrane controls Passage of water only Passage of water and solutes into the cell Passage of water and solutes in and out of the cell Movement of cell contents out of the cell10. Seeds when soaked in water imbibe in it because There are many vacuoles in the endosperm Osmotic pressure inside the seed is low Seed coat contains lot of salts The process of absorption works11 out of 10Please fill in the comment box below.
