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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: - The three germinal layers of the gastrula gives rise to
- A young infant may be feeding entirely on mothers milk
- An organic substance that can withstand environmental extremes and cannot be
- Which of the following are not true cells in the blood?
- A stack of many closed, coin shaped sacs bound in the innerspace of chlroplast is called
Topics: Transport and Nutrition in Plants
(163)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The three germinal layers of the gastrula gives rise to
- A young infant may be feeding entirely on mothers milk
- An organic substance that can withstand environmental extremes and cannot be
- Which of the following are not true cells in the blood?
- A stack of many closed, coin shaped sacs bound in the innerspace of chlroplast is called
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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