Lesson 1.4.4
1.4.4 Blood cholesterol, HDLs and LDLs Quiz: Pearson Edexcel Biology, Unit 1
20 questions
In partnership with Revision Ninja
Lesson 1.4.4, Blood cholesterol, HDLs and LDLs: 20 multiple choice questions for the Pearson Edexcel Biology (9BI0), Unit 1: Lifestyle, Health and Risk, written with Revision Ninja.
Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.
The 20 questions
-
Which lipoprotein carries cholesterol from the liver to the body's tissues?
- Low-density lipoprotein (LDL)
- High-density lipoprotein (HDL)
- Fibrinogen
- Haemoglobin
-
Which lipoprotein is thought to remove cholesterol from the artery walls and return it to the liver?
- Low-density lipoprotein (LDL)
- Thromboplastin
- High-density lipoprotein (HDL)
- Prothrombin
-
Where does LDL transport cholesterol in the human body?
- To artery walls
- Out of cells
- To the kidneys
- To the liver
-
Where does HDL transport excess cholesterol for disposal?
- To the kidneys
- To skeletal muscles
- To the liver
- To artery walls
-
A patient has a total cholesterol of 6.0 mmol/dm^3 and an HDL cholesterol of 1.2 mmol/dm^3. What is the ratio of total cholesterol to HDL cholesterol?
- 0.2
- 5
- 7.2
- 1.2
-
Which drug class lowers LDL cholesterol levels to reduce cardiovascular disease risk?
- Anticoagulants
- Antihypertensives
- Statins
- Beta blockers
-
What type of clinical trial provides the strongest evidence that lowering LDL reduces CVD risk?
- Randomised controlled trial
- Case study
- Observational study
- Cross-sectional survey
-
Which component of diet is most strongly linked to increased blood LDL cholesterol levels?
- Dietary fibre
- Monosaccharides
- Unsaturated fat
- Saturated fat
-
Which essential molecules in the body are synthesized from cholesterol?
- Triglycerides
- Steroid hormones
- Polysaccharides
- Nucleic acids
-
Why must cholesterol be transported in blood plasma inside lipoproteins?
- It is toxic
- It is acidic
- It is volatile
- It is insoluble
-
Which lipid ratio gives the best indication of cardiovascular disease risk?
- Glycerol to LDL
- Total to HDL
- HDL to LDL
- LDL to triglyceride
-
In observational studies linking LDL to CVD, what variable might confound the results?
- Smoking status
- Sample size
- Cell count
- Blood phenotype
-
Which type of lipoprotein directly promotes plaque deposition in artery walls?
- High-density lipoprotein
- Chylomicron
- Albumin
- Low-density lipoprotein
-
What combined measurement provides a better estimate of CVD risk than total cholesterol alone?
- HDL and insulin
- Total and HDL
- LDL and glucose
- Total and glycogen
-
What is the main effect of reducing circulating LDL levels in patients with atherosclerosis?
- Faster plaque growth
- Slower plaque growth
- Lower HDL levels
- Increased blood pressure
-
Which food is a rich dietary source of cholesterol?
- Egg yolk
- Whole oats
- White bread
- Olive oil
-
How do statins lower blood cholesterol levels?
- Blocking LDL receptors
- Increasing triglyceride synthesis
- Inhibiting liver enzymes
- Stimulating bile production
-
Where do High-Density Lipoproteins (HDLs) transport cholesterol?
- To the kidneys
- To the liver
- To skeletal muscles
- To body tissues
-
What relationship is shown when high HDL levels correlate with fewer heart attacks?
- Absolute certainty
- Inverse causation
- Direct causation
- Correlation only
-
Which primary role does the liver perform in cholesterol metabolism?
- Storing body fat
- Digesting dietary lipids
- Synthesising cholesterol
- Filtering blood cells
Related quizzes
- Why animals need a circulation and the role of water Quiz · 1.1.1 · 20 questions
- Structure and function of blood vessels Quiz · 1.1.2 · 20 questions
- Structure and operation of the mammalian heart Quiz · 1.1.3 · 20 questions
- Atherosclerosis and its course of events Quiz · 1.2.1 · 20 questions
- Blood clotting and its role in CVD Quiz · 1.2.2 · 20 questions
- Risk factors for cardiovascular disease Quiz · 1.2.3 · 20 questions
- Interpreting illness and mortality data Quiz · 1.3.1 · 20 questions
- Evaluating studies of health risk factors Quiz · 1.3.2 · 20 questions
- Perceptions of risk and energy balance Quiz · 1.3.3 · 20 questions
- Monosaccharides, disaccharides and polysaccharides Quiz · 1.4.1 · 20 questions