International A Level Biology / Cardiovascular health and risk

Blood cholesterol, HDLs and LDLs

Edexcel International A Level Biology (YBI11), chapter 3: Cardiovascular health and risk, specification point 1.18. Part of the full course.

Read the revision notes · International A Level Biology past papers

Cholesterol travels in the blood inside lipoproteins. LDL carries it to body cells and can increase cardiovascular disease risk, while HDL carries it back to the liver for removal.

More lessons in Cardiovascular health and risk

• Risk, correlation and cause
• Reading illness and mortality data
• Evaluating studies of health risk
• Risk factors for cardiovascular disease
• Energy balance, BMI and waist-to-hip ratio
• Dietary antioxidants and CVD
• Core practical 2: vitamin C content of food and drink
• Treatments for CVD: benefits and risks