Organisation

1 Principles of Organisation Describe the levels of organisation in living organisms from cells to organisms. Spec 4.2.1 2 The Digestive System Describe the organs of the digestive system and what happens to food at each stage. Spec 4.2.2.1 3 Enzymes Explain how enzymes work, how temperature and pH affect them, and describe the lock and key model. Spec 4.2.2.2 4 The Heart and Blood Vessels Describe the structure and function of the heart, the double circulatory system and the three types of blood vessel. Spec 4.2.3 5 Blood Describe the four components of blood and the function of each. Spec 4.2.3.2 6 Coronary Heart Disease Describe the causes and treatments of coronary heart disease. Spec 4.2.3.3 7 Health, Disease and Risk Factors Define health and disease, distinguish communicable from non-communicable diseases, and explain risk factors. Spec 4.2.4 8 Cancer Explain how cancer develops, the difference between benign and malignant tumours, and how cancer is treated. Spec 4.2.4.1 9 Plant Tissues and Organs Describe the tissues found in plant organs and how they are adapted to their functions. Spec 4.2.5 10 Transpiration Describe transpiration and the factors that affect its rate. Spec 4.2.5.2 11 Translocation Describe translocation and how it differs from transpiration. Spec 4.2.5.3