A LEVEL BIOLOGY



Paper 1

What's assessed

Any content from topics 1–4, including relevant practical skills

Assessed

·         written exam: 2 hours

·         91 marks

·         35% of A-level

Questions

·         76 marks: a mixture of short and long answer questions

·         15 marks: extended response questions

Paper 2

What's assessed

Any content from topics 5–8, including relevant practical skills

Assessed

·         written exam: 2 hours

·         91 marks

·         35% of A-level

Questions

·         76 marks: a mixture of short and long answer questions

·         15 marks: comprehension question

Paper 3

What's assessed

Any content from topics 1–8, including relevant practical skills

Assessed

·         written exam: 2 hours

·         78 marks

·         30% of A-level

Questions

·         38 marks: structured questions, including practical techniques

·         15 marks: critical analysis of given experimental data

·         25 marks: one essay from a choice of two titles




Topic list

  • How living organisms form ecosystems through which energy is transferred and chemical elements cycled
  • How human activity affects ecological balance in a variety of ways
  • How genetic variation and isolation may lead to the formation of new species.

Assessment

Written Paper: 1 hour 30 minutes
Weighting: 16% of total A Level marks

Six - nine short answer questions plus two longer questions (a short comprehension and a short structured essay)

Topic list

  • Stimulus and responses - the biology of the nervous and endocrine systems
  • Homeostasis and the maintenance of a constant internal environment
  • Genes and genetic expression

Assessment

Written Paper: 2 hours 15 minutes
Weighting: 23% of total A Level marks

Eight - ten short answer questions plus two longer questions (a data-handling question and a synoptic essay - choice of one out of two)