In plants, water potential is determined by major factors?
Correct answer: C. Two
- A. Three
- B. Four
- C. Two
- D. Five
Explanation
The two major components used for plant water potential are solute potential and pressure potential, expressed as Ψw = Ψs + Ψp. Students may choose a if they count water potential itself as a separate factor, but it is the overall value being determined, not an additional component in this simplified model.
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About Biological Importance of Water
Water supports life through its polarity, hydrogen bonding and ability to dissolve ionic and polar substances. Its high specific heat, heat of vaporization, cohesion, adhesion and incompressibility help regulate temperature, transport materials and maintain structure, while hydrolysis and osmosis depend directly on water.
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