Biology – physical structure of a protein

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The physical structure of a protein often reflects and affects its function.
(a) Describe THREE types of chemical bonds/interactions found in proteins. For each type, describe its role
in determining protein structure.
(b) Discuss how the structure of a protein affects the function of TWO of the following.
Muscle contraction
Regulation of enzyme activity
Cell signaling
(c) Abnormal hemoglobin is the identifying characteristic of sickle cell anemia. Explain the genetic basis of
the abnormal hemoglobin. Explain why the sickle cell allele is selected for in certain areas of the world.

Choose a company that used tax avoidance and/or tax evasion to reduce tax liabilities and answer the following questions Case analysis andpresentation sheet.

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– A written report on the case analyzed (1,500)

1. Differentiate between tax avoidance and tax evasion. Which one is used by your chosen company? Why?
2. Explain the main causes of tax avoidance and tax evasion. Give examples of the means and strategies used by your chosen company to avoid/ evade tax liabilities.
3. Evaluate the consequences of tax avoidance and tax evasion on economies. Explain these consequences in the context of your chosen company.
4. How do governments tackle tax avoidance and tax evasion? Explain anti-tax avoidance/ anti-tax evasion policy/ measures used by governments in the case of your chosen company.

Report
Introduction; Discussion/Analysis; Conclusion.

What are the risks, opportunities and implications for UK/Europe presented by the significant demographic shifts in Africa?

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Please fllow the Comments and feedback are on attachment.
A couple of things from my tutor:
    Be careful of the data that you are using
    Say clearly that you are looking really at illegal migrants
    Talk more about the details of the demographic shifts (increased number of young people in Africa)
    Use more examples and data to support your arguments
    Divide the opportunities for the UK into opportunities in Africa, and opportunities in the UK

review task

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Give constructive feedback on two (2) paragraphs written by your peers. This should be a two to three (2-3) sentence comment on their submission asse 5for Step 1. Use Harris’s ‘Revising’ techniques from the Week 10PPT file reading to formulate your feedback (coming to terms, forwarding, countering, taking an approach).