Advertisements
Advertisements
प्रश्न
The figure given below is a diagrammatic representation of a part of the cross-section of the root in the root hair zone. Study the same and then answer the questions that follow :
(i) Name the parts indicated by guidelines ‘1’ to ‘5’
(ii) Is the root hair cell unicellular or multi-cellular?
(iii) Draw a labeled diagram of the root hair cell as it would appear if some fertilizer is added to the soil close to it.
(iv) Name the process responsible for the entry of water molecules from the soil into A1 and then A2.
(v) What pressure is responsible for the movement of water in the direction indicated by arrows?
(vi) How is this pressure set up?
Advertisements
उत्तर
(i) 1. Vacuole (containing cell sap)
2. Soil particles
3. Xylem vessel
4. Cortex cells
5. Vacuole in cortical cells
(ii) Root hair cell is unicellular
(iii) See diagram alongside.
(iv) Osmosis
(v) Osmotic pressure
(vi) This pressure is set up due to the difference in osmotic gradient.
APPEARS IN
संबंधित प्रश्न
The apparatus arranged alongside signifies an important process.
(i) Name the process.
(ii) Where does this process occur in plants?
(iii) What solution is placed inside the dialysis tubing?
(iv) What happens to the level of the solution in the capillary tube?
Name the following:
The kind of cells that constitute the cortex of a root.
Give Technical Term for the following.
Tissue which transports manufactured food from leaves to other parts of the plant.
Fill in the Blank
Leaves get wilted if _________ is removed from the plant.
Describe structure of root hair.
Part of the root that absorbs water from the soil is ______.
____________plants like orchids absorb water vapours from air with the help of epiphytic roots having special tissue called velamen.
The unbranched root hair in plants is formed from ____________.
Root hair is a cytoplasmic extension of ______.
