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प्रश्न
Choose the correct answer:
Which tissue makes passage for ascent of sap?
पर्याय
Cortex
Endodermis
Phloem
Xylem
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उत्तर
Xylem
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संबंधित प्रश्न
Draw a magnified view of the root-hair, and describe, how it helps in the absorption of water from the soil.
What are root hair? Mention the function performed by the root hair.
Study the diagram given below and answer the questions that follow:
- Name the process being studied in the above experiment.
- Explain the process mentioned in (a) above
- Why is oil placed over water?
- What do we observe with regard to the level of water when this set-up is placed in (1) bright sunlight, (2) humid conditions and (3) windy days?
- Mention any three adaptations found in plants to foster the process mentioned in (a) above
Grapes shrink when immersed in a very strong sugar solution.” Explain.
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?
________ type of tissues are present in epiphytic roots.
Root hair occurs in the zone of ____________.
Root hair is a cytoplasmic extension of ______.
Give other name of epidermal cells in roots of plants.
Name the following:
Unicellular outgrowths from the epidermis of roots.
