AQA AS LEVEL BIOLOGY ACTUAL EXAM 2025 TEST COMPREHENSIVE Q&A

what is RNA? - answer-ribonucleic acid MRNA and TRNA single stranded shorter AU CG what are biological molecules? - answer-molecules made and used by living organisms eg. lipids, carbs, DNA, AT, water, inorganic ions what are the functions of carbohydrates? - answer--energy source (respiration) -energy store (starch and glycogen) -structure (cellulose) ATP structure? - answer-1 adenosine 3 phosphates ADP and energy= ATP condensation reaction using ATP synthase carries energy in bonds hydrolysis breaks down into ADP and energy using ATP hydrolase releases energy from phosphate group bonds what are the building blocks of carbohydrates called? - answer-monosaccharides why is ATP a good source of energy? - answer-immediate release, only need to break one bond releases small amounts of energy at a time, manageable...