Advertisements
Advertisements
Question
Draw a neat and labelled diagram of the Root tip showing the root hair zone.
Solution
APPEARS IN
RELATED QUESTIONS
the exact location of the Lenticels
Choose the correct answer:
In ascent of sap water reaches upwards ____________
Name the following:
The kind of cells that constitute the cortex of a root.
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column I | Column II |
| (i) Diffusion | (a) The exit or flow of water from the cell to the outer environment. |
| (ii) Xylem | (b) The shrinkage of protoplasm when the cell is kept in a hypertonic solution. |
| (iii) Root pressure | (c) The tissue through which water and mineral salts move upward in a plant. |
| (iv) Isotonic solution | (d) Two solutions which have equal osmotic pressure. |
| (v) Exosmosis | (e) The process by which the molecules of perfume spread in the room when the bottle is open. |
| (vi) Osmosis | (f) The process by which roots absorb water from the soil. |
| (vii) Plasmolysis | (g) The pressure by which water rises up to some feet in a lofty tree. |
| (viii) Hypotonic solution | (h) The concentration of the solution when lower than that of the cell sap. |
Multiple Choice Question:
Process of endosmosis stops:
A thin strip of epidermal cells of a leaf was observed in a drop of water. They all looked turgid and normal.
(a) Draw a diagram of such a cell.
(b) Draw a diagram of a cell if this strip is transferred to a strong concentrated solution of sugar. What is term used for the effect on the cells ?
Inner layer of root hair is made up of ______.
Water which is absorbed by roots is transported to aerial parts of the plant through ______
Which part of the root helps in the maximum absorption of water and minerals?
Look at Figure 11.1. Draw another figure of the same set-up as would be observed after a few hours.
