A level and IB Biology Essays

Description

The various sample examination essays cover the syllabi covered by both A level and IB examinations. They cover the factual knowledge of the Biology syllabus and do so in a style which allows you to improve your examination skills at the same time. The different lectures answer specific questions and whilst the essay is read out, a number of visual stimuli are used to help illustrate various points. The essays cover the various topics in a comprehensive and clear way. The essays also cover the key operative words needed to answer different types of A level and IB exams. Additional essay titles are continually being added;

1 a) How is a nerve impulse generated and conducted?

1 b) Why is the "all or nothing" law of nerve conduction important in understanding how nerves communicate within the nervous system?

2 a)Describe the structure of DNA and RNA?

2 b) How are the differences in structure suited to the different roles of DNA and RNA in cells?

2 c) What is the genetic code?

3 a) Outline briefly the structure of proteins

3 b) List four functions of proteins in living organisms

3 c) For each function you have listed above, discuss the relation between function and protein structure

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