BIOLOGICAL SCIENCES Paper A1
(BIOL 201) (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 is glucose made available from our dietary carbohydrates and how is it
absorbed into the bloodstream?
2. Using diagrams, illustrate electron transport through complex III of the
respiratory chain.
3. Write brief notes on the structure and function in metabolism of the co-enzymes
NAD+ and NADP.
4. Briefly describe clinical interventions which may be used to prevent a thrombosis
or remove a pathological clot which has formed.
5. Outline how the enzyme acetyl-CoA carboxylase is regulated during fatty acid
biosynthesis.
Section B - BIOL201 Biochemistry (answer one question only)
6. Using suitable examples, explain how control can be achieved in the metabolic
pathways involved in glucose homeostasis.
7. Discuss how different experimental approaches can be used to study enzyme
structure, activity, mechanism, and regulation.
8. Following tissue damage thrombin is produced but it has a strong positive
feedback effect upon the production of further thrombin molecules. Discuss how
the uncontrolled generation of active thrombin and hence formation of fibrin clots
is prevented.
Continues over
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller laurynwills. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $4.55. You're not tied to anything after your purchase.