Advertisements
Advertisements
प्रश्न
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
Xylem is the water conducting tissue in plants.
पर्याय
True
False
उत्तर
This statement is true.
Explanation:
The vascular bundle is the system of plants regarding the conduction of food, water, and minerals. It consists of two parts: the xylem, which is the water-conducting tissue, and the phloem, which is concerned with the conduction of food (glucose).
APPEARS IN
संबंधित प्रश्न
The process by which root hairs absorb water from the soil.
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 |
What part is played by the cell wall?
What would happen to the root hair of a potted plant if the soil was watered with an extremely concentrated solution of sodium chloride?
Differentiate between the following
Permeable and Semi-permeable membrane.
The alongside diagram A shows a root hair growing through the soil particles. Diagram B is the root hair of an aquatic plant.
(i) Name the parts 1,2,3.
(ii) Name two substances which enter the root hair. What are their uses?
(iii) By what process do these substances enter the root hair?
(iv) Account for the different shapes of root hairs in the two diagrams.
A thin strip of epidermal cells from the fleshy scales of an onion bulb was examined in a drop of water, under a microscope. All the epidermal cells looked alike and the figure alongside represents one of them. The thin strip was then transferred to a drop of strong sugar solution and re-examined under the microscope after about five minutes.
(i) Make a sketch of one of the epidermal cells, as it might appear after immersion in a strong sugar solution. Label any two parts which have undergone a change.
(ii) Give the scientific term for the change shown in Q.(i) above.
(iii) What would you do to bring this cell back to its original condition?
(iv) Give the scientific term used for the recovery of the cell as a result of the step taken in Q.(iii) above.
Give Technical Term for the following.
The tissue responsible for the ascent of sap in plants.
Aquatic animals like fish excrete their wastes in gaseous form as
Look at Figure 11.1. Draw another figure of the same set-up as would be observed after a few hours.
