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BIOL201 Biochemistry End of Year Exam from 2012 - Essay practice
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BIOL201 Biochemistry End of Year Exam from 2012 - Essay practice
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LANCASTER UNIVERSITY2012 EXAMINATIONS
Part IIa (Second Year)
BIOLOGICAL SCIENCES
BIOL 201 (Biochemistry) (3 hours)
___________________________________________________________
Answer ALL parts of Section A in one answer booklet. Answer ONE question from
Section B and ONE question from Section C in 2 separate answer booklets. All parts
of Section A are equally weighted. Sections A, B and C also carry equal weighting.
Section A - BIOL201 Biochemistry (answer all five questions)
1. How does epinephrine activate hormone-sensitive triacylglycerol lipase?
2. List the similarities and differences between the H+ electrochemical gradient
that exists across the inner membrane of mitochondria with the one that exists
across the thylakoid membrane in chloroplasts.
3. Summarise an experiment which has confirmed the rotation of the γ subunit
relative to the β subunits in the mitochondrial ATP synthase.
4. How is the activity of phosphofructokinase controlled?
5. Write brief notes about the structure and function in metabolism of
ONE co-enzyme of your choice.
Section B - BIOL201 Biochemistry (answer one question only)
6. Describe the synthesis of saturated fatty acids.
7. In metabolism, enzyme activities are regulated through a variety of diverse
mechanisms that exert useful regulatory effects over different timescales.
Discuss this statement.
8. Give an account of urea synthesis in animals.
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