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प्रश्न
Root hair is ________ extension of epiblema cells.
विकल्प
Cytoplasmic
Protoplasmic
Nucleoplasmic
Cellulosic
उत्तर
Root hair is cytoplasmic extension of epiblema cells.
APPEARS IN
संबंधित 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 the guidelines 1 to 4.
(ii) Which is the process that enables the passage of water from the soil into the root hair?
(iii) Name the pressure that is responsible for the movement of water in the direction indicated by the arrows. Define it.
(iv) Due to an excess of this pressure sometimes drops of water are found along the leaf margins of some plants especially in the early mornings. What is the phenomenon called?
(v) Draw a well labelled diagram of the root hair cell as it would appear if an excess of fertiliser is added to the soil close to it.
Differentiate between the following:
Guttation and bleeding
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
How is root hair adapted for the absorption of water from the soil?
Study the experimental setup in the figure and then answer the question that follow.
Explain the phenomenon mention in question 8.1 .
Grapes shrink when immersed in a very strong sugar solution.” Explain.
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.
Multiple Choice Question:
Process of endosmosis stops:
Give other name of epidermal cells in roots of plants.
Name the following:
Unicellular outgrowths from the epidermis of roots.
