(2) P-protein. This transports organic materials through, phloem in plants.
(2) Ribonucleotide is the basic unit of RNA.
(1) Nitrogen containing ring organic compound or heterocyclic compound. It can be adenine, guanine, cytosine, thymine (in DNA), uracil (in RNA).
(2) A pentose sugar. The pentose sugar is ribose in case of RNA and 2' deoxyribose in case of DNA.
(3) A molecule of phosphoric acid.