Absorption by Roots Welcome to your Absorption by Roots 1. Osmosis involves Movement of water through cortical cells Active absorption of water through roots All the above Cell to cell movement of water2. Marine fish when thrown under tap water bursts because of Diffusion Exosmosis Plasmolysis Endosmosis3. Water will be absorbed by the root hairs when: Concentration of solutes in the cell sap is high None of the above Concentration of solutes in the soil is high The plant is rapidly respiring4. When a plant wilts, the sequence of events is as follows: Exosmosis, plasmolysis, deplasmolysis, temporary wilting Exosmosis, plasmolysis, temporary and permanent wilting Exosmosis, deplasmolysis, plasmolysis, temporary and permanent wilting None of the above5. In the process of Osmosis in a cell: Only outermost layer of protoplast acts as a membrane The entire protoplast acts as a membrane Both protoplasm and cell wall act as a membrane Only cell wall acts as a membrane6. Osmosis involves diffusion of Suspended particles from higher to lower concentration Solvent particles from the less concentrated solution to the more concentrated solution Suspended particles from lower to higher concentration Molecules or ions from the more concentrated solution to the less concentrated solution7. The space between the cell wall and plasma membrane in a plasmolysed cell is filled with Isotonic solution Hypertonic solution Water Hypotonic solution8. When cell is fully turgid, which of the following will be zero? Turgor pressure Osmotic pressure Suction pressure(SP) or Diffusion pressure Deficit (DPD) Wall pressure9. Seeds when soaked in water imbibe in it because Osmotic pressure inside the seed is low Seed coat contains lot of salts There are many vacuoles in the endosperm The process of absorption works10. Plasma membrane controls Movement of cell contents out of the cell Passage of water and solutes into the cell Passage of water and solutes in and out of the cell Passage of water only11 out of 10Please fill in the comment box below.
