Absorption of Water and Minerals by Roots — Important Questions
ICSE · Class 10 · Biology
43 important questions from Absorption of Water and Minerals by Roots for ICSE Class 10 Biology, with answers. Written for the board exams 2027.
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See them allImportant Questions from Absorption of Water and Minerals by Roots
Which of the following are essential elements required for plant growth?
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Nitrogen (N), Phosphorus (P), Potassium (K)
NPK (Nitrogen, Phosphorus, and Potassium) are the three most important essential elements for normal growth and development of plants. Sodium is not an essential element.
Imbibition is the process of adsorption of water molecules by dry hydrophilic colloids.
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True
Imbibition is indeed the process of adsorption of water molecules by dry hydrophilic colloids due to surface attraction. Examples include swelling of seeds and wooden doors.
What happens when a cell is placed in a hypertonic solution?
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Cell becomes flaccid
In a hypertonic solution (higher solute concentration), water leaves the cell by exosmosis, making it flaccid and shrunken.
Which of the following are functions of water in plants?
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Serves as a solvent, Raw material for photosynthesis, Helps in transpiration, Facilitates gas exchange
Water serves multiple functions: solvent for substances, raw material for photosynthesis, helps in transpiration, and facilitates gas exchange by dissolving gases. Structural support is provided by turgidity, not water directly.
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