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4 Written questions

3 Multiple choice questions

  1. Nonpolar molecules that are not soluble or mostly insoluble in water. They include fats, phospholipds, steroids, and waxes.
  2. signal molecule released into the bloodstream that triggers particular responses
  3. a subgroup of the steroids and an important class of organic molecules. They occur naturally in plants, animals, and fungi, with the most familiar type of animal sterol being cholesterol. Cholesterol is vital to cellular function, and a precursor to fat-soluble vitamins and steroid hormones.

3 True/False questions

  1. triglyceridea lipid made of three fatty acid molecules and one glycerol molecule


  2. Cholesterolsteroid molecule present in the plasma membranes of animal cells


  3. Saturated Fatfat with less than the maximum number of hydrogens in one or more of its fatty acid chains