Combined Science (Biology) · G2 / G3
Sec 4 Combined Science (Biology)
The usual Sec 4 half of the Biology component of O-Level Combined Science 5088 (SEC G2/G3 from 2027): infectious diseases in humans, nutrition and transport in flowering plants, organisms and their environment, molecular genetics, reproduction in humans, and inheritance — at Combined Science depth.
- chapters
- 6
- ready now
- 6
- quiz questions
- 120
- exam-style papers
- 2
Start here · Chapter 1Infectious Diseases
- Notes · 11 min read
- 20-question quiz
- 12 topical questions
- 30-mark practice paper
Chapters
6 of 6 chapters ready
Theme 1
The Human Body — Maintaining Life
Infectious diseases in humans.
Theme 2
Living Together — Plants, Animals and Ecosystems
Nutrition and transport in flowering plants, and organisms and their environment.
Theme 3
Continuity of Life
Molecular genetics, reproduction in humans, and inheritance.
Topical questions by chapter
One page per chapter: Core, Standard and Challenging questions with model answers.