Hydrogen bonding
What Hydrogen bonding means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.
Definitions of Hydrogen bonding
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Reference: Pearson Edexcel
Bonds form between complementary bases on opposite DNA strands, holding the strands together as they twist into a double helix.
Weak attractions formed between water and other polar molecules, such as glucose.
Topics that use Hydrogen bonding
- Topic 1: Lifestyle, Health and Risk (Pearson Edexcel A-Level)
- Topic 2: Genes and Health (Pearson Edexcel A-Level)
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Using Hydrogen bonding in the exam
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