Sec 4 Biology
The usual Sec 4 half of O-Level Pure Biology 6093 (SEC G3 from 2027): homeostasis, co-ordination and response, infectious diseases, nutrition and transport in flowering plants, organisms and their environment, molecular genetics, reproduction, and inheritance with natural selection.
- chapters
- 7
- ready now
- 7
- quiz questions
- 210
- exam-style papers
- 2
- Notes · 14 min read
- 30-question quiz
- 18 topical questions
- 30-mark practice paper
Chapters
7 of 7 chapters ready
The Human Body – Maintaining Life (II)
Keeping conditions steady through homeostasis, co-ordination and response, and defending the body against infectious disease.
Living Together – Plants, Animals and Ecosystems
Photosynthesis and transport in flowering plants, and the flow of energy and matter through ecosystems under human pressure.
Continuity of Life
DNA, genes and genetic engineering; reproduction in plants and humans; and inheritance from genetic crosses to natural selection.
Topical questions by chapter
One page per chapter: Core, Standard and Challenging questions with model answers.