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AQA A Level Biology Unit 1 questions and answers 100% verified.

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How do biological molecules provide evidence for evolution? - correct answer. They all have similar molecules and use the same amino acids and DNA. What are monomers of carbohydrates called? - correct answer. Monosaccharides. Beta Glucose - correct answer. Alpha glucose - correct answer. Glucose formula - correct answer. C₆H₁₂O₆ Name of the bond between monosaccharides? - correct answer. Glycosidic bond. What is sucrose made from? - correct answer. Glucose and fructose. What is lactose made from? - correct answer. Glucose and galactose. What is maltose made from? - correct answer. Two alpha glucose. Testing for reducing sugars? - correct answer. 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? - correct answer. Add dilute hydrochloric acid and heat, neutralise with Sodium Hydrogencarbonate and add Benedicts reagent

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