There are __________ types of nutrients needed by plants besides light to carry out photosynthesis
Correct answer: B. Three
- A. Two
- B. Three
- C. Four
- D. Five
Explanation
In the usual school-level description, photosynthesis requires three materials besides light: water, carbon dioxide and chlorophyll, which absorbs light energy. Students may choose a by counting only the raw materials water and carbon dioxide, but this omits chlorophyll's essential role in capturing light.
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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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