The concentration of water molecules is inversely proportional to the:
Correct answer: C. Solute potential
- A. Water potential
- B. Pressure potential
- C. Solute potential
- D. Osmotic potential
Explanation
The correct answer is Solute potential. The concentration of water molecules is inversely proportional to solute potential because when solute concentration increases, it lowers the water potential, thus decreasing the concentration of free water molecules. Water moves from areas of higher water potential (lower solute concentration) to areas of lower water potential (higher solute concentration), which is the principle of osmosis. Water potential encompasses solute potential, but it also includes pressure potential, which is not directly related to solute concentration. Therefore, the direct inverse relationship is with solute or osmotic potential.
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About Plant Nutrition and Transport
Plants require macronutrients and micronutrients for growth, and mineral deficiencies produce recognizable symptoms. Transport involves water and minerals through xylem by transpiration pull, cohesion and adhesion, while phloem translocates sugars from sources to sinks. Root pressure and transpiration are distinct mechanisms.
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