Risk factors for cardiovascular disease Quiz
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5 questions, one answer each
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1. Which lipoprotein carries cholesterol from the tissues to the liver?
- A. HDL
- B. LDL
- C. Chylomicron
- D. Fibrin
2. A 1.0 mg cm⁻³ vitamin C standard needs 0.50 cm³ to decolourise 1.0 cm³ of DCPIP. A juice needs 2.0 cm³. What is its vitamin C concentration?
- A. 0.10 mg cm⁻³
- B. 0.25 mg cm⁻³
- C. 0.50 mg cm⁻³
- D. 4.0 mg cm⁻³
3. Which of these is a risk factor for CVD that cannot be changed?
- A. Smoking
- B. Salt intake
- C. Physical inactivity
- D. Genetic inheritance
4. A study shows that people with high cholesterol have more CHD. Why does this not prove that cholesterol causes CHD?
- A. The sample size was too large
- B. Cholesterol cannot be measured
- C. Other variables, such as age or smoking, may differ between the groups
- D. CHD cannot be measured accurately
5. Two people both have a total cholesterol of 6.0 mmol dm⁻³. Person X has mostly HDL and person Y mostly LDL. Which statement is correct?
- A. X has the higher risk because HDL deposits cholesterol in arteries
- B. Y has the higher risk because LDL deposits cholesterol in artery walls
- C. Both have the same risk because total cholesterol is equal
- D. X has the higher risk because HDL raises blood pressure