Absorption by Roots Welcome to your Absorption by Roots 1. 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 wilting2. 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 works3. 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 membrane4. The space between the cell wall and plasma membrane in a plasmolysed cell is filled with Isotonic solution Hypertonic solution Water Hypotonic solution5. Osmosis involves diffusion of Solvent particles from the less concentrated solution to the more concentrated solution Suspended particles from lower to higher concentration Suspended particles from higher to lower concentration Molecules or ions from the more concentrated solution to the less concentrated solution6. Osmosis involves Cell to cell movement of water Movement of water through cortical cells All the above Active absorption of water through roots7. Plasma membrane controls Passage of water and solutes in and out of the cell Passage of water only Movement of cell contents out of the cell Passage of water and solutes into the cell8. Water will be absorbed by the root hairs when: The plant is rapidly respiring Concentration of solutes in the cell sap is high Concentration of solutes in the soil is high None of the above9. When cell is fully turgid, which of the following will be zero? Wall pressure Turgor pressure Osmotic pressure Suction pressure(SP) or Diffusion pressure Deficit (DPD)10. Marine fish when thrown under tap water bursts because of Endosmosis Exosmosis Plasmolysis Diffusion11 out of 10Please fill in the comment box below.
