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प्रश्न
The figure shows a diagrammatic representation of the movement of certain substances inside the stem of a certain plant. Write five sentences on whatever you can explain about the processes or the arrangement of structures indicated in the diagram.
Note: - Each sentence must include one or more of the following four words, and each word can be used several times. Xylem, phloem, roots, leaves.
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उत्तर
(i) Plants absorb water by their roots.
(ii) Roots supply water to the stem and leaves of the plant.
(iii) In root hairs, the xylem is not fully mature and the endodermis and epidermis are permeable to water.
(iv) Water is absorbed by the plants through xylem in all directions.
(v) The food on the other hand is transported with the help of phloem.
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संबंधित प्रश्न
What are root hair? Mention the function performed by the root hair.
Give reason for the following:
If you uproot a plant from the soil, its leaves soon wilt.
The diagram given below represents a plant cell after being placed in a strong sugar solution. Guidelines 1 to 5 indicate the following:
1. Strong sugar solution
2. Cell wall
3. Protoplasm
4. Large vacuole
5. Nucleus
Study the diagram and answer the questions that follow:
(i) What is the state of the cell shown in the diagram?
(ii) Name the structure which acts as a selectively permeable membrane.
(iii) If the cell had been placed in distilled water instead of strong sugar solution which feature would not have been present?
(iv) If the cell in the diagram possessed chloroplasts where would these be present?
(v) Name any one feature of this plant cell which is not present in animal cells.
Choose the correct answer:
Exudation or bleeding is associated with ___________
Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer.
If the phloem of a twig is removed keeping the xylem intact, the leaves of a twig wilt.
Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer.
Guttation in plants occurs maximum at midday.
Given below is an experimental demonstration.
(i) Which phenomenon has been demonstrated in the given figure?
(ii) What is the solute and what is solvent in the above experiment?
(iii) Define the phenomenon in Q. (i) above.
(iv) Give one example from your daily life experiences based on this principle.
How many regions are there in a typical root?
Roots of the plants absorb water from the soil through the process of ____________.
Give other name of epidermal cells in roots of plants.
