. Look at the experiment shown in Fig 4.16 on the next page. Why was it necessary to take coloured eosin solution in water in the beaker?

Name the follow:

(i) The state of a cell when it cannot accommodate any more water ………………..

(ii) Pressure of the cell contents on the cell wall. ………………….

(iii) The part of a plant cell which is like the leather casing of a football ……………………

(iv) The condition that is opposite to turgid. …………………

(v) The state of a plasmolysed cell after the re-entry of water ………………………

(vi) The pressure under which water passes from the living cells of a root into xylem …………………….

Look at Fig 4.15. Why was oil added over water in the test tubes?

Which part in the stem, the xylem or the phloem, is located deeper internally?

Look at Fig. 4.18 on the next page. Why has the stem below the ring stopped growing and even slightly decayed?