Biological molecules 0.0 / 5 ? BiologyBiological molecules, organic chemistry and biochemistryA2/A-levelAQA Created by: A_b_i_g_a_i_lCreated on: 23-04-20 15:16 What percent of living organisms is water? 80%. The other chemicals making up living things are organic macromolecules belonging to 4 groups, proteins, nucleus acids, carbs and lipids 1 of 14 What is a monomer A molecule acting as a subunit that can be chemically bonded to other monomers 2 of 14 What is a diner? Two monomers chemically bonded together usually with a covalent bond 3 of 14 What is a polymer? Large or macromolecules comprised of many monomers chemically boned together. 4 of 14 What is a carb made up of? MONOMER: monosaccharide(sugar) POLYMER: polysacchardes TYPICAL % DRY MASS: 15% 5 of 14 What is a protein made up of? MONOMER: amino acid POLYMER: polypeptides TYPICAL % DRY MASS: 50% 6 of 14 What are lipids made up of? MONOMERS: fatty acids & glycerol (not a polymer as no repeating subunits) POLYMERS: triglyceride TYPICAL % DRY MASS: 10% 7 of 14 What is nucleus acids made up of? MONOMERS: nucleotides POLYMERS: polynucleotides 15% 8 of 14 How are biological molecules joined together? Condensation reaction, where a molecule is lost 9 of 14 How are they broken down? hydros is reaction, where a molecule of alter is consumed 10 of 14 INORGANIC IONS what are H+ for? More h ions, lower the PH of solution. Which change shape & activity of proteins 11 of 14 What are Fe3+ ions for? Structural component of hymoglobin: where it can bind it can bind & releases O2 so critical for O2 transport in animals. 12 of 14 What are Na+ ions for? Found in cytoplasm in nervecells; playing a key role in nerve impulse transmittion along th axon (impulse is moving of sodium ions) 13 of 14 What is PO3- ions for? Structural component in the genetic material (DNA & RNA & ATP) 14 of 14
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