| Test | mg/dL | Adult reference | Result |
|---|
A teaching model, not a clinical tool. LDL is set by how fast the liver makes lipoproteins and how fast LDL receptors clear them; values settle over a few seconds here instead of weeks. Diet effects are rounded from average study results and differ between people. Reference ranges are standard adult cut-offs in mg/dL. HDL depends mainly on genes, activity and smoking, so the sliders move it only a little.
Drag a chip onto the molecule, click a bond in the picture to change it, or use the bond buttons. Each bond button cycles single → cis double → trans double.
Melting points are rough estimates from typical values for pure fatty acids, to show the trend. Room temperature is taken as 22 °C.
The top of the picture shows the problem. The worked solution builds underneath after a correct answer, or when you ask for it, with units cancelling (struck through in red).
Your job
Drag a card onto a box, or tap a card and then tap the box's name. Cards are buttons, so Tab and Enter work too.
Fictional people. Teaching scenarios with rounded values, not personal medical or diet advice.
Wrong picks are fine here. Each one tells you why.