Nucleotides, polynucleotides, and ATP
Nucleotides, polynucleotides, and ATP

Nucleic acids are essential for inheritance and for controlling cell activity, and they are built from repeating nucleotides. The same basic nucleotide design also helps explain ATP, the cell's immediate energy carrier.
Step-by-step lessons on Eduqas A Level Biology Nucleic acids and their functions. Each one builds up to exam-style questions. Build a strong foundation in cell biology and biochemistry early on, since later topics on genetics, ecology and physiology all draw on these core concepts.