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AQA A Level Biology Unit | Questions With 100% Correct Answers | Verified

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How do biological molecules provide evidence for evolution? - They all have similar molecules and use the same amino acids and DNA. What are monomers of carbohydrates called? - Monosaccharides. Beta Glucose - Alpha glucose - Glucose formula - C₆H₁₂O₆ Name of the bond between monosaccharides? - Glycosidic bond. What is sucrose made from? - Glucose and fructose. What is lactose made from? - Glucose and galactose. What is maltose made from? - Two alpha glucose. Testing for reducing sugars? - Add Benedict's reagent (blue) and heat in a water bath at a boil. If present: Green → yellow → orange → brick red Test for non-reducing sugars? - Add dilute hydrochloric acid and heat, neutralise with Sodium Hydrogencarbonate and add Benedicts reagent. What is the scientific name for carbohydrates? - Polysaccharides

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