A-Level BiologyYear 2018Q10
page 07 10. The flow diagram shows part of the ADH signal transduction pathway in a collecting duct cell. ADH binds to its receptor Receptor activates G-protein G-protein activates protein kinase Which row in the table shows how this pathway would be altered in an individual with diabetes insipidus? Concentration of inactive G-proteins Phosphorylation of proteins A decreased decreased B decreased increased C increased decreased D increased increased 11. Which row in the table describes the states of the proteins p53 and Rb that would increase the rate of cell division? Protein p53 Rb A activated phosphorylated B inhibited phosphorylated C activated dephosphorylated D inhibited dephosphorylated [Turn over

Paper Source:NAH_Biology_all_2018.pdf
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Exam Specification Info
This question is part of the UK A-Level Biology syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.
Syllabus levelAdvanced Level (A-Level)
SubjectBiology
Official MarksVariable (2–6 marks)