what are the parts of a nucleotide

Question

dna, rna, atp.
nitrogenous base, carbon sugar, phosphate group.
nitrogenous base, atp, glucose
nitrogen, sulfer, phosphate group

Answer 1

Nucleotides, which are the building blocks of nucleic acids (DNA and RNA) and essential energy molecules like ATP, consist of three main components:

1. Nitrogenous Base: This can be one of four types in DNA (adenine, thymine, cytosine, and guanine) and one of four types in RNA (adenine, uracil, cytosine, and guanine).

2. Pentose Sugar: This is a five-carbon sugar. In DNA, it is deoxyribose, while in RNA, it is ribose.

3. Phosphate Group: This consists of one or more phosphate units, which are linked to the sugar and play a critical role in energy transfer (as seen in ATP).

Therefore, among the options you provided, the correct combination for the parts of a nucleotide would be:

• Nitrogenous base, carbon sugar, phosphate group.

The other options you listed are incorrect in the context of what constitutes a nucleotide.