Frequently asked questions
What does IGCSE Biology cover?
IGCSE Biology covers cell structure, biological molecules, enzymes, nutrition, transport in plants and humans, respiration, excretion, coordination, reproduction, genetics, evolution and ecology.
What are the most important IGCSE Biology topics?
Cell biology, genetics (monohybrid crosses, inheritance) and human physiology (digestion, circulation, nervous system) receive the most exam marks. The genetics section on punnet squares and inheritance patterns is consistently tested in Paper 2 and Paper 4.
How is IGCSE Biology Paper 6 different from Paper 3?
Paper 6 (Alternative to Practical) is a written exam testing practical skills — planning experiments, identifying variables, drawing and interpreting graphs, and evaluating results. It replaces Paper 3 (actual laboratory practical) for external candidates.