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प्रश्न
Which one of the following is a characteristic NOT related with the suitability of the roots for absorbing water?
विकल्प
Tremendous surface area
Contain cell sap at higher concentration than the surrounding water
Root hairs have thin cell walls
Grow downward into the soil
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उत्तर
Grow downward into the soil
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.
How does movement and absorption of water take place through the roots?
Concentration of mineral nutrient elements is higher inside the root hairs than in the surrounding soil. How do roots take them in from the soil?
The diagram below represents a layer of epidermal cells showing a fully grown root hair. Study the diagram and answer the questions that follow:
The root hair cell is in a turgid state. Name and explain the process that caused this state.
Draw a diagram of the root hair cell as it would appear when a concentrated solution of fertilizers is added near it.
Multiple Choice Question:
Process of endosmosis stops:
Define: Root hair
From which type of cells, root hair is originated
What would happen to the leaves of a plant that transpires more water than its absorption in the roots?
Draw a neat and proportionate diagram of root hair and label mitochondria, nucleus and vacuole.
