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Phosphorus is necessary for the synthesis of which two classes of compound?
ACellulose and lignin polymers
BNucleic acids and phospholipids
CChlorophyll and carotene pigments
DAlkaloids and terpene compounds
Answer & Solution
Correct answer: B. Nucleic acids and phospholipids
1. Phosphorus is one of the nine macronutrients.
2. It is necessary to synthesise nucleic acids and phospholipids.
3. As part of ATP it also lets food energy be converted into chemical energy through oxidative phosphorylation.
4. Light energy is likewise converted into chemical energy during photophosphorylation in photosynthesis, which again runs through phosphate.
5. Cellulose and lignin are carbon based structural polymers and need no phosphorus.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 31 "Soil and Plant Nutrition", section 31.1 Nutritional Requirements of Plants_
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