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प्रश्न
What is toxicity ?
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उत्तर
It refers to the kind of external osmotic environment of a cell or it refers to the type of solution outside the cell.
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संबंधित प्रश्न
The phenomenon of loss of water through a cut stem or injured part of plant is called ___________.
Draw a magnified view of the root-hair, and describe, how it helps in the absorption of water from the soil.
What are root hair? Mention the function performed by the root hair.
Name the following:
The process by which water enters root hairs.
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 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.
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.
Give Technical Term for the following.
Phenomenon of absorption of water by surface attraction.
Plasma Membrane is ______.
Identify labels x, y, z in the given figure of root showing different regions.
