This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Bio-Chemistry), Subject name: Biochemistry
The density of lipoproteins increases as the protein content: 
Select and explain. 
A. Increases, B. Decreases, C. Highly decreases, D. Slightly and promptly decreases
A: Increases
Answer: A: Increases 
Explanation: Ans. A. IncreasesThe density is inversely proportional to triacylglycerol content and is directly proportional to the protein content.PropertyChylomicronsVLDLIDLLDLHDLDiameter(nm)100-50030-8025-3520-355-10Density(kg/l)<0.95<1.0061.006-1.0191.019-1.063>1.063ElectrophoresisStay at originPre-bbba-1Phospholipid510152025Cholesterol520405035Protein15102025Triglyceride906535105