Q7. Propose a structure that is consistent with each set of data. a. C4H100 1H NMR spectrum singlet & 1.28 (9H) singlet & 1.35 (1H) b. C7H15CI 1H NMR spectrum singlet 8 1.10 (9H) singlet 8 1.60 (6H) c. C2H4Br2 1H NMR spectrum doublet & 2.50 (3H) quartet 8 5.90 (1H) d. C4H8C12 1H NMR spectrum doublet 8 1.60 (3H) quartet 8 2.15 (2H) triplet 8 3.72 (2H) sextet 84.27 (1H)

The image shows a whole body bone scan using MDP (mono-diphosphonate) labelled with technetium-99m. • Patient is injected with 600 MBq of Tc-99 MDP • Technetium-99m is a pure gamma emitter, with physical half life of 6 hours. a) Use the data to explain why technetium 99-m is a suitable radionuclide (AC 3.1)

BiochemistryChapter : Nucleotide metabolism a. Explain the difference between purines and pyrimidines!b. Describe the reaction of purine nucleotide synthesis!c. Explain the pyrimidine nucleotide synthesis reaction! Please write the answer on paper using handwriting, thanks

5. Draw the reaction curve for the follow a) A reaction with an activation energy (EA) = 50 and free energy ( G) = 20 %3D %3D b) A reaction with an activation energy (EA) = 30 and free energy ( G) = - 40 c) Indicate whether the reactions above are anabolic or catabolic Reaction a) %D Reaction b) = %3D

Matching Answers can be used more than once. a. DNA b. RNA c. both DNA and RNA d. neither DNA nor RNA Present in chromosomes. V brit dbirtw Contains the base adenine (A). 2. 3. Structure is a double helix. Contains the base thymine (T). Is made of amino acids linked together 6. Part of the structure of ribosomes. Made of nucleotides linked together. Contains the base uracil (U). Contains the sugar deoxyribose. 9. Contains phosphate. 10. 1. 4. 5. 7. 8.

39 and 40