Biology
Answer
| Plasmolysis | Deplasmolysis |
|---|---|
| It refers to the shrinkage of the cytoplasm and withdrawal of the plasma membrane from the cell wall caused due to the withdrawal of water when placed in a hypertonic solution. | Deplasmolysis is the recovery of a plasmolysed cell when it is placed in water, wherein the cell's protoplasm again swells up due to the re-entry of water. |
| In Plasmolysis, the cell becomes flaccid. | In Deplasmolysis, the cell becomes turgid. |
Related Questions
Fill in the blanks by choosing the correct alternative from those given in brackets.
(a) When placed in a more concentrated solution, the cell contents will …………… (shrink / swell up).
(b) The pressure by which the …………… molecules tend to cross the semi-permeable membrane is called osmotic pressure. (salt / water)
(c) Active transport is in a direction …………… to that of diffusion. (opposite / same)
Match the items in column I with those in column II
Column I Column II (a) Xylem (i) semi-permeable (b) Phloem (ii) permeable (c) Cell membrane (iii) downward flow of sap (d) Root pressure (iv) upward flow of water (e) Cell wall (v) guttation Differentiate between Turgor Pressure and Wall Pressure
Differentiate between Hypotonic and Hypertonic solution