6. The hydrophilic heads of lipids are_ A. soluble in water C. insoluble in water D. solubility B. solute 7. What are the three main categories of dietary carbohydrates? A. Sugar, starches and fiber B. Whole carbs, refined carbs and non-carbs C. Glucose, fructose and galactose D. Tetrose, fructose and hexose 8. What can good lipids do to our body? A. Activate genes that can burn calories. B. Increase the risk of cancer. C. Reduces the health of the heart D. It has fibers that aids digestion.