SCIENCE
BOTANY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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enable elongation of a root.
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absorbs water and minerals from soil.
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produces oxygen in the process of photosynthesis.
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None of the above
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Detailed explanation-1: -Root hair absorbs water from soil through osmosis. Water will be absorbed by root hairs by osmosis as the environment in the soil is hypotonic. This kind of absorption takes place passively. The water can easily move from the region of higher concentration to the low concentration without expenditure of energy.
Detailed explanation-2: -Root hairs absorb water from the soil by the process of osmosis.
Detailed explanation-3: -The roots of a plant contain a high concentration of minerals and the soil contains a lower concentration. The roots absorb minerals from the soil. This is an example of passive transport.
Detailed explanation-4: -Water from the soil is absorbed by the roots through a process known as osmosis. The cell membrane of the root hair cells acts as a semi-permeable membrane. The cell sap inside the vacuole is a strong solution with low water concentration.
Detailed explanation-5: -A root hair contains cell sap which has a higher concentration of salts as compared to the soil water. Hence the root hair cells absorb water from the soil by endosmosis.