Metabolism provides a mechanism for the production of energy: Correct. Metabolism (catabolism) produces energy.

Flora provides the information of any one taxon: Incorrect. Flora contains the actual account of habitat and distribution of plants of a given area. Monographs provide information on any one taxon.

Without metabolism there cannot be a living state: Correct. The living state and metabolism are synonymous.

Keys are generally analytical in nature: Correct. Taxonomic keys are used for identification and are analytical in nature.

(E) Each of the metabolic reactions results in the transformation of biomolecules: Correct. Metabolism is the continuous transformation of biomolecules (dynamic state of body constituents).

(F) Chemosynthetic autotroph plays a great role in recycling nutrients like nitrogen, phosphorus, iron and sulphur: Correct. They oxidize various inorganic substances and play a key role in nutrient recycling.

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