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In plants, water supply is due to
Options
(a) osmosis
(b) imbibition
(c) guttation
(d) adhesion force
Correct Answer:
osmosis
Explanation:
Root hairs function as tiny osmotic systems. Each root hair has a thin permeable cell wall, a semipermeable cytoplasm and an osmotically active cell sap present in the central vacuole. Because of the latter a root hair cell gas a water potential of -3 to -8 bars. Water potential of the soil water is -0.1 to -0.3 bars. As a result, water of the soil passes into the root hair cell through the process of osmosis.
Related Questions: - Which one of the following help in absorption of phosphorus from soil by plants?
- If the cell wall of a cell is removed the remaining portion is called
- Which one of the following statements is true about archaea?
- In human blood the oxygen carrier is
- Electrons from excited chlorophyll molecule of photosystem II are accepted first by:
Topics: Transport and Nutrition in Plants
(163)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following help in absorption of phosphorus from soil by plants?
- If the cell wall of a cell is removed the remaining portion is called
- Which one of the following statements is true about archaea?
- In human blood the oxygen carrier is
- Electrons from excited chlorophyll molecule of photosystem II are accepted first by:
Topics: Transport and Nutrition in Plants (163)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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