Sodium channel open Potassium channel closed Na -K pump closed The stage of the action potential that is shown above is the very end of the action potential O repolarization O resting potential O depolarization

Question 5 a) Explain the general diagnostic principles using radiopharmaceuticals by which medical images may obtained. b) Describe the use of technetium-99m-MDP. c) Describe the use of 1251 radioisotope. [Suggested word count 270] [2.2]

Why is trypsin an unusual name for an enzyme? (What is the convention for enzyme names?)  .

17-21 Is the reaction of 2-phosphoglycerate to phosphoenolpyruvate (PEP) a redox reaction? Give the reason for your answer.

Consider the following two nonhomologous wildtype chromosomes, where letters or numbers represent genes, the "-" represents the centromere of each chromosome, and chromosomes are shown on separate lines. ABCDE-FGHIJK 123-45678 Identify the type of rearrangement shown in each of the following (A-C) and then identify whether it is balanced or unbalanced. Assume that the individual is diploid and heterozygous for the rearrangement. A. • ABCDE-FGHIJKGH 123-45678 Rearrangement: [Select] • Balanced or Unbalanced: [Select] B. • ABCDGF-EHIJK 123-45678 Rearrangement ✓ [Select] • Balanced or Un pericentric inversion Robertsonian translocation deletion tandem duplicate paracentric inversion C. reciprocal translocation ABCDE dispersed duplicate nonreciprocal translocation 123-45

I just need to clarify these questions. Draw a linear disaccharide of glucose. is an alternating alpha (1-4) and b (1-4) linkages energy source or structural.

Drag the labels onto the diagram to identify the anatomical terminology describing body orientation and direction (human a Posterior (caudal) Distal Superior (dorsal) Proximal Inferior (caudal) Anterior (ventral) Posterior (dorsal) Pearson arch

Question 3 a) Explain the key properties Tc 99m used for medical imaging. b) Explain how you store such radioisotope. [Suggested word count 200] [1.3]

5:45 Notepad Free Enter title... SAVE UNDO describe in words the structure of the DNA molecule.

Which of the following is an anomer of B-D-gulopyranose? O O го ОН H ОН H ОН H H ОН CH₂OH -II- H H ОН ОН CH2OH H ОН ОН CH2OH О 0. H CH2OH то Н H H ОН H H - о H ОН ОН H ОН H ОН ОН H О ОН ОН H N