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प्रश्न
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उत्तर
The root hairs become flaccid when fertilisers are added to the moist soil around them because fertilisers with moist soil become hypertonic which causes plasmolysis in the cells of the root hair. The turgidity is lost and the cell becomes flaccid.
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संबंधित प्रश्न
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
Xylem is the water conducting tissue in plants.
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.
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.
Choose the correct answer:
Meaning of ascent of sap is ____________
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.
Name the following:
Water is absorbed from the soil by which part.
Multiple Choice Question:
Process of endosmosis stops:
________ type of tissues are present in epiphytic roots.
Write a note on the morphological structure of the root.
