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3.1 Biological molecules
Quick questions on Nucleic acids: DNA, RNA, phosphodiester bonds, semi-conservative replication and ATP - AQA A-Level Biology
4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is dNA structure?Show answer
This structure suits DNA's role as a stable store of genetic information: the bases are protected on the inside, hydrogen bonds are strong in bulk but easy to separate for replication, and the molecule is long enough to store many genes.
What is q1?Show answer
Describe the structure of a DNA nucleotide. [3 marks]
What is q2?Show answer
Explain how the structure of DNA is suited to its function of storing genetic information. [4 marks]
What is q3?Show answer
Explain why ATP is a better immediate energy source for the cell than glucose. [3 marks]
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