IG生物内容可概括为以下17个专题:
1. Characteristics and Classification of Living Organisms(生物分类与特点)
2.Organisation of the Organism(有机体的组织)
3.Movement in and out of Cells(细胞的物质进出)
4.Biological Molecules(生物分子)
5.Enzymes(酶)
6.Plant and animal Nutrition(动植物营养)
7.Transport in Plants and animals(动植物的运输)
8.Diseases and Immunity(疾病与免疫系统)
9.Gas Exchange and respiration(气体交换与呼吸)
10.Excretion in Humans(排泄)
11.Coordination and Response(协调和反应)
12.Drugs(药物)
13.Reproduction(生殖)
14.Inheritance,Variation and Selection(遗传和变异)
15.Organisms and their Environment(有机体与环境)
16.Biotechnology and Genetic Engineering(生物技术与基因工程)
17.Human Influences on Ecosystems(人类对生态系统的影响)