MD4002 Lecture 2

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Across
  1. 1. Organic molecule that is insoluble in water but tends to dissolve in nonpolar organic solvents (5)
  2. 5. Polysaccharide composed exclusively of glucose units used to store energy in animal cells. Especially abundant in liver and muscle (8)
  3. 7. Common folding pattern in proteins where in which a linear sequence of amino acids folds into a right handed coil stabilised by internal hydrogen bonding between backbone atoms (5,5)
  4. 9. Reaction Cleavage of a covalent bond with the addition of water (10)
  5. 11. Ubiquitous metabolic pathway in the cytosol in which sugars are partially metabolised to produce ATP (10)
  6. 13. State at which there is no net change in a system (11)
  7. 14. Portion of a protein that has its own tertiary structure (6)
  8. 15. Reaction through which two molecules are linked together through OH groups with the removal of molecular water (12)
  9. 17. Energy storage lipids in cells that are composed of triacylglycerols (3)
  10. 20. A region on the surface of a protein that can interact with another molecule through noncovalent bonding (7,4)
  11. 21. ___________ phosphorylation, a process in bacteria and mitochondria in which ATP formation is driven by the transfer of electrons from food molecules to molecular oxygen (9)
  12. 22. Loss of electrons from an atom as occurs with the addition of oxygen or when hydrogen is removed (9)
  13. 23. Common structural motif in proteins in which different sections of the polypeptide chain run alongside each other and are joined together by hydrogen bonding between atoms of the polypeptide backbone (4,5)
  14. 24. Abbreviation of a three word term, series of electron carrier molecules along which electrons move from a higher to a lower energy level to a final acceptor molecule, with associated production of ATP (3)
  15. 25. ______ structure, regular folding patterns in a protein (9)
Down
  1. 2. _______ structure, the amino acid sequence of a protein (7)
  2. 3. ________ structure, the 3D relationship of different polypeptide chains in a multisubunit protein complex (10)
  3. 4. ___ ___ Cycle found in aerobic organisms which oxidises acetyl groups derived from food molecules to CO2 and H2O. In eukaryotes this occurs in the mitochondria (6,4)
  4. 6. Net drift of molecules in the direction of lower concentration due to random thermal motion (9)
  5. 8. Literally “water loving” (11)
  6. 10. Literally “water hating” (11)
  7. 12. Small carbohydrate with a monomer unit of general formula (CH2O)n
  8. 16. Molecule on which an enzyme acts (9)
  9. 18. ______ energy, extra energy that must be possessed by atoms or molecules in addition to their ground state to undergo a chemical reaction (10)
  10. 19. ______ structure the complex 3D form of a folded protein (8)
  11. 23. A substance that can reduce the number of protons in a solution (4)