Absorption by Roots Welcome to your Absorption by Roots 1. Plasma membrane controls Passage of water and solutes into the cell Passage of water only Movement of cell contents out of the cell Passage of water and solutes in and out of the cell2. Marine fish when thrown under tap water bursts because of Diffusion Exosmosis Endosmosis Plasmolysis3. Water will be absorbed by the root hairs when: Concentration of solutes in the soil is high None of the above The plant is rapidly respiring Concentration of solutes in the cell sap is high4. Osmosis involves Active absorption of water through roots Movement of water through cortical cells Cell to cell movement of water All the above5. When a plant wilts, the sequence of events is as follows: None of the above Exosmosis, deplasmolysis, plasmolysis, temporary and permanent wilting Exosmosis, plasmolysis, deplasmolysis, temporary wilting Exosmosis, plasmolysis, temporary and permanent wilting6. Seeds when soaked in water imbibe in it because Seed coat contains lot of salts Osmotic pressure inside the seed is low There are many vacuoles in the endosperm The process of absorption works7. Osmosis involves diffusion of Suspended particles from lower to higher concentration Solvent particles from the less concentrated solution to the more concentrated solution Molecules or ions from the more concentrated solution to the less concentrated solution Suspended particles from higher to lower concentration8. The space between the cell wall and plasma membrane in a plasmolysed cell is filled with Water Hypotonic solution Hypertonic solution Isotonic solution9. When cell is fully turgid, which of the following will be zero? Turgor pressure Wall pressure Osmotic pressure Suction pressure(SP) or Diffusion pressure Deficit (DPD)10. In the process of Osmosis in a cell: Both protoplasm and cell wall act as a membrane The entire protoplast acts as a membrane Only cell wall acts as a membrane Only outermost layer of protoplast acts as a membrane11 out of 10Please fill in the comment box below.
