To decrease the salt potential, the guard cells absorb:
Correct answer: C. Potassium ions
- A. Sodium Ions
- B. Magnesium ions
- C. Potassium ions
- D. Calcium ions
Explanation
Influx of potassium ions decreases water potential in the guard cell so water enters the cell from surrounding cells. As a result salt potential decreases.
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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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