Biology · G2 / G3
Sec 3 Biology
The usual Sec 3 half of O-Level Pure Biology 6093 (SEC G3 from 2027): cell structure and organisation, movement of substances, biological molecules and enzymes, and the human body systems — nutrition, transport, respiration and excretion.
- chapters
- 7
- ready now
- 7
- quiz questions
- 210
- exam-style papers
- 3
Start here · Chapter 1Cell Structure & Organisation
- Notes · 15 min read
- 30-question quiz
- 18 topical questions
- 30-mark practice paper
Chapters
7 of 7 chapters ready
Theme 1
Cells and the Chemistry of Life
Cell structure and specialisation, movement of substances across membranes, and the biological molecules and enzymes that power life.
Theme 2
The Human Body – Maintaining Life (I)
How the human body takes in and processes food, transports materials, releases energy from food and removes metabolic waste.
Topical questions by chapter
One page per chapter: Core, Standard and Challenging questions with model answers.