Table of Contents

Biology 1 1 Keeping healthy 2 Nerves and hormones 3 Interdependence and adaptation 4 Genetic variation and evolution Exam questions Biology 2 5 Cells, tissues and organs 6 Photosynthesis, organisms and communities 7 Enzymes: function, industrial uses and their role in exercise 8 How do our bodies pass on characteristics? Exam questions Biology 3 9 Why are diffusion and active transport so important to living things? 10 How materials are transported around an organism 11 How our bodies keep internal conditions constant 12 Humans and their environment Exam questions

About the Author

Christine Woodward was Head of Biology at Moira House School and a Chief Examiner for biology. Toby Houghton is Deputy Head at Oathall Community College and was Head of Science and Assistant Head at Glebelands School.