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प्रश्न
Draw a neat and labelled diagram of Root hair.
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.
the exact location of the Lenticels
How does movement and absorption of water take place through the roots?
Name the following:
The process by which water enters root hairs.
What would happen to the root hair of a potted plant if the soil was watered with an extremely concentrated solution of sodium chloride?
Name the following:
Tissue concerned with upward conduction of water.
Three plants (a), (b) and (c) were placed in beakers containing coloured water. The water in each beaker was covered with a layer of oil. The leaves were removed from plant (b), while plant (c) was exposed to strong light.
(i) In which plant, (a), (b) or (c) would the water move up the fastest?
(ii) In which plant (a), (b) or (c), would the water move up slowly?
(iii) Why was the water covered with a layer of oil?
(iv) What is being investigated by this experiment?
Choose the correct answer:
In ascent of sap water reaches upwards ____________
Choose the correct answer:
Wilting of plants occurs when ____________
The below figure shows a root hair:
(i) Label the parts 1 to 4.
(ii) What is the role of part 4?
(iii) Why is the root hair one-celled?
(iv) What will happen to the root hair if some fertilizer is added to the soil near the root hair?
Describe structure of root hair.
In the zone of absorption, epidermal cells form unicellular hair-like extensions called ________.
Root hair is ________ extension of epiblema cells.
What is the composition of an outer layer of root hair?
What would happen to the leaves of a plant that transpires more water than its absorption in the roots?
____________ regions are present in a typical root.
The unbranched root hair in plants is formed from ____________.
Why and how does water enter continuously into the root xylem?
They are pipe-like, consisting of a group of specialised cells. They transport substances and form two-way traffic in plants. Which of the following terms qualify for the features mentioned above?
Water in the root enters due to ______.
