Which of the following statements are correct about functions of essential plant nutrients? (A) Nitrogen is an important component of nucleic acids. (B) Phosphorus is essential to the formation of enzymes. (C) Sulphur is part of some amino acids and coenzymes. (D) Manganese is essential for pollen germination. Choose the correct answer from the options given below:
(A) Nitrogen is an important component of nucleic acids. Correct. Nitrogen is a fundamental constituent of nucleic acids (DNA, RNA), vital for genetic encoding and cellular operations.
(B) Phosphorus is essential to the formation of enzymes. Incorrect. Phosphorus is crucial for energy transfer (e.g., ATP) and as a nucleic acid component, but not directly cited as essential for enzyme synthesis.
(C) Sulphur is part of some amino acids and coenzymes. Correct. Sulfur is incorporated into the amino acids cysteine and methionine, and is present in various coenzymes.
(D) Manganese is essential for pollen germination. Incorrect. Manganese participates in photosynthesis, nitrogen assimilation, and other physiological functions, but its essentiality for pollen germination is not specifically documented.
Conclusion: Statements (A) and (C) are accurate. Thus, the correct selection is: (A) and (C) only.