Basics
This sterol is found in every cell and is used to make vitamin D and steroid hormones.
What is cholesterol?
This is the major type of fat found in food and stored in the body (glycerol + 3 fatty acids).
Double Jeopardy!!
What are triglycerides?
A fatty acid with no carbon–carbon double bonds; typically solid at room temperature.
What is a saturated fatty acid?
The condition where plaque builds up, narrowing and hardening arteries.
What is atherosclerosis?
Lipids provide this many calories per gram.
What is nine (99) calories per gram?
The name for the class of organic molecules that includes fats, oils, phospholipids, and sterols.
What are lipids?
Lipids that form cell membranes and act as emulsifiers in foods like mayonnaise.
What are phospholipids?
These essential fatty acids must be obtained from food and include omega‑3 and omega‑6.
What are essential fatty acids (EFAs)?
A blocked artery leading to the heart can cause this acute event.
Double Jeopardy!!
What is a heart attack?
These fat‑soluble vitamins require lipids for transport through the body.
What are vitamins A, D, E, and K?
The term for the tissue that stores fat, cushions organs, and helps maintain body temperature
What is adipose tissue?
Lipid-derived molecules that include cholesterol and are precursors to steroid hormones.
What are sterols?
Plant oils, flaxseed, walnuts, and fatty fish are good sources of this type of fatty acid linked to heart and brain benefits.
Double Jeopardy!!
What are omega‑3 fatty acids?
Name two controllable risk factors that can raise blood cholesterol
What are diet and inactivity? (also accept: smoking, high blood pressure, overweight, stress, diabetes)
One structural function of lipids in cells—lipids make up these cellular components.
What are cell membranes?
What is plaque?
The lipoprotein often called “good” cholesterol because it removes cholesterol from arteries.
What is HDL (high-density lipoprotein)?
Corn, soybean, and chicken are common dietary sources of this essential polyunsaturated fatty acid.
What is omega‑6 (linoleic acid)?
This lipoprotein’s higher levels are most directly linked to increased plaque formation risk.
What is LDL?
Name two body roles of adipose tissue (any two).
What are insulation and cushioning organs? (also accept: energy storage, maintaining body temperature)
A building-block organic molecule made of a carbon chain with a carboxyl group.
What is a fatty acid?
The lipoprotein associated with delivering cholesterol to tissues and contributing to plaque when high.
What is LDL (low-density lipoprotein)?
This benefit is associated with omega‑3s: they help lower these blood lipids that are measured after meals.
What are triglycerides?
Besides lowering LDL, name one realistic teen lifestyle change to improve cholesterol.
What is increasing physical activity? (also accept: choose more fish/plant oils, reduce saturated fats, maintain healthy weight, stop smoking)
Explain briefly why diets completely free of fat are dangerous long term (concise student response).
What is: Fat is needed to absorb fat‑soluble vitamins and for cell membranes/essential fatty acids; deficiency impairs growth and function.