ATP 0.0 / 5 ? BiologyBiological molecules, organic chemistry and biochemistryA2/A-levelAQA Created by: HindleycCreated on: 17-12-17 22:13 What is ATP? Adenosine triphosphate 1 of 27 What is it the most import product of? Respiration 2 of 27 What is it an immediate source of? Energy 3 of 27 What form of energy is ATP? Chemical 4 of 27 What can ATP be converted into? Other forms of chemical energy in metabolism, movement, heat 5 of 27 What does ATP consist of? Adenine(base) linked to Ribose linked to 3 inorganic phosphate groups 6 of 27 When is ATP synthesised? When organic molecules are oxidised in respiration, light energy trapped in photosynthesis 7 of 27 What does both of these involve? Electrons being passed down a sequence of carrier molecules 8 of 27 What is ATP synthesised from? ADP and inorganic phosphate 9 of 27 What type of reaction is this? Condensation 10 of 27 How is the synthesis of ATP catalysed? Catalysed by enzyme ATP synthase 11 of 27 Which bonds contain a lot of energy? The bonds attaching phosphate groups- bonds attaching terminal P contains most energy 12 of 27 How can this energy be released? When hydrolysed 13 of 27 What is the reaction for this? ATP+ H2O -> ADP + Pi 14 of 27 How much energy is released? 30Kjmol-1 15 of 27 What is the energy released from glucose used for? (2870) Make a significant amount of ATP molecules 16 of 27 Why is ATP a universal currency of energy? Energy release is instantaneous as bonds in ATP unstable thus energy release rapid and only 1 reaction needed whereas in glucose many 17 of 27 What does ATP release? Small amounts of energy - small usable packets 18 of 27 What is the use of ATP in active transport? Transport substances into or out of cells against a concentration gradient 19 of 27 What is the use of ATP in secretion - exocytosis Involved in vesicle formation and movement 20 of 27 What is the use of ATP in the activation of molecules eg glucose in glycolysis? Glucose is phosphorylated making it more reactive 21 of 27 What is the use of ATP to create carbohydrates in the calvin cycle? GP is converted into TP 22 of 27 What is the use of ATP in the calvin cycle? Regeneration of ribulose biphosphate 23 of 27 What is the use of ATP in protein synthesis? ATP needed to form peptide bonds 24 of 27 What is the use of ATP in nucleic acid synthesis? DNA replication prior to cell division and mRNA synthesis during transcription for protein synthesis 25 of 27 What is the use of ATP in polysaccharide synthesis? Glucose into glycogen or starch 26 of 27 What is the use of ATP in muscle contractions? ATP required for protein filaments to slide past each other 27 of 27
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