1. Sketch a drawing of a fatty acid

2. Outcomes 3: Identify from the structures a range of biological molecules. 5: Explain the function of a range of biological molecules in both animals and plants. 7: Evaluate the biological importance of hydrolysis and condensation reactions in biological molecules. Key terms: triglycerides, lipids, phospholipids Objectives Know fatty acids can be saturated, monounsaturated or polysaturated. Understand fatty acids can be cis or trans isomers. Know how a triglyceride is formed.

3. Outcomes 3: Identify from the structures a range of biological molecules. 5: Explain the function of a range of biological molecules in both animals and plants. 7: Evaluate the biological importance of hydrolysis and condensation reactions in biological molecules. Key terms: triglycerides, lipids, phospholipids

4. Outcomes 3: Identify from the structures a range of biological molecules. 5: Explain the function of a range of biological molecules in both animals and plants. 7: Evaluate the biological importance of hydrolysis and condensation reactions in biological molecules. Key terms: triglycerides, lipids, phospholipids

5. Outcomes 3: Identify from the structures a range of biological molecules. 5: Explain the function of a range of biological molecules in both animals and plants. 7: Evaluate the biological importance of hydrolysis and condensation reactions in biological molecules. Key terms: triglycerides, lipids, phospholipids

6. Outcomes 3: Identify from the structures a range of biological molecules. 5: Explain the function of a range of biological molecules in both animals and plants. 7: Evaluate the biological importance of hydrolysis and condensation reactions in biological molecules. Key terms: triglycerides, lipids, phospholipids What does each term mean? Saturated Monounsaturated Polyunsaturated

7. Saturated and unsaturated

8. Outcomes 3: Identify from the structures a range of biological molecules. 5: Explain the function of a range of biological molecules in both animals and plants. 7: Evaluate the biological importance of hydrolysis and condensation reactions in biological molecules. Key terms: triglycerides, lipids, phospholipids

9. Outcomes 3: Identify from the structures a range of biological molecules. 5: Explain the function of a range of biological molecules in both animals and plants. 7: Evaluate the biological importance of hydrolysis and condensation reactions in biological molecules. Key terms: triglycerides, lipids, phospholipids

10. Outcomes 3: Identify from the structures a range of biological molecules. 5: Explain the function of a range of biological molecules in both animals and plants. 7: Evaluate the biological importance of hydrolysis and condensation reactions in biological molecules. Key terms: triglycerides, lipids, phospholipids What are the health risks of over consumption of lipids in the diet?

11. Outcomes 3: Identify from the structures a range of biological molecules. 5: Explain the function of a range of biological molecules in both animals and plants. 7: Evaluate the biological importance of hydrolysis and condensation reactions in biological molecules. Key terms: triglycerides, lipids, phospholipids Answer the past paper question on lipids

12. 1.(a)margarine / sunflower seeds / vegetable oil / peanuts / nuts, etc. (no animal products)1 (b)energy storage / energy supply; hormone production; cushioning / protection; insulation; (constituent of) membranes; cell respiration; myelin sheath;2 max (c)saturated fatty acids cause high cholesterol; atherosclerosis / narrowing of (lumen of) arteries; CHD / formation of clots / heart attack / heart failure / thrombosis / stroke; hypertension / high blood pressure; obesity / overweight; which is linked to diabetes; although there are also genetic factors / some countries eat a lot of fats and have low CHD;4 max