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प्रश्न
Draw a neat and proportionate diagram of root hair and label mitochondria, nucleus and vacuole.
उत्तर
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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.
Explain the mechanism of closing and opening of the stomata.
How is root hair adapted for the absorption of water from the soil?
Name the following:
Tissue concerned with upward conduction of water.
The diagram below represents a layer of epidermal cells showing a fully grown root hair. Study the diagram and answer the questions that follow:
Mention one distinct difference between the parts labelled A and B.
A few RBC’s were kept in three test tubes containing isotonic, hypotonic and hypertonic solutions. What will be the expected observations after a few hours? Explain.
Inner layer of root hair is made up of ______.
Define: Root hair
____________plants like orchids absorb water vapours from air with the help of epiphytic roots having special tissue called velamen.
How many regions are there in a typical root?
