Macromolecules Flashcards
fatty, water-insoluble (hydrophobic) molecules that function as stored energy, components of cellular membranes, and hormones
lipids
4 categories of lipids
Triglycerides (neutral fats), phospholipids, steroids, and eicosanoids
the only category of biological macromolecules that are not polymers
lipids
examples of steroids
cholesterol, steroid hormones, and bile salts
what is a triglyceride composed of
glycerol and 3 fatty acids (hydrocarbon chains)
what are phospholipids composed of
phosphate group, glycerol, an organic group, and 2 fatty acids
structure of eicosanoids
modified 20 carbon fatty acids
most common form of lipid in living things
triglyceride
used for long-term energy storage in adipose connective tissue, structural support, cushioning, and insulation
triglyceride
what is used to store triglycerides
adipose connective tissue
how many attached rings does a steroid have
4 (3 six carbon rings and 1 five carbon ring)
4 categories of eicosanoids
prostaglandin, prostacyclin, thromboxane, leukotriene
function of eicosanoids
primary function in the inflammatory response of the immune system and communications with the nervous system
fat-soluable vitamins
a and e
glycolipid structure
lipid molecules with an attached carbohydrate