IB Biology HL A1.2.2 DNA and RNA Nucleotides Question Bank

Practise IB Biology HL A1.2.2 by drawing DNA or RNA nucleotides, calculating phosphate counts and classifying purines and pyrimidines.

Exam points

Draw and label DNA or RNA nucleotides with sugar, phosphate and base differences.
Use base counts to calculate phosphate groups and classify purines versus pyrimidines.

[Maximum number: 3]

Draw a labelled diagram to show the structure of a single nucleotide of RNA.

official ribonucleotide diagram answer

a. Ribose drawn as a pentagon and labelled.

b. Base linked correctly to $C_{1}$ of ribose and labelled.

c. Phosphate linked correctly to $C_{5}$ of ribose and labelled.

All question bank results loaded

A1.2.2—Components of a nucleotide question 1