Lipids Flashcards
Fatty acids
Used to synthesize triglycerides and phospholipids or catabolized to
generate adenosine triphosphate (ATP)
Triglycerides
Protection, insulation, energy storage
Phospholipids
Major lipid component of cell membranes
Steroids: Cholesterol
Minor component of all animal cell membranes; precursor of bile salts,
vitamin D, and steroid hormones.
Steroids: Bile salts
Needed for digestion and absorption of dietary lipids
Steroids: Vitamin D
Helps regulate calcium level in body; needed for bone growth and repair
Steroids: Adrenocortical
hormones
Help regulate metabolism, resistance to stress, and salt and water balance
Steroids: sex hormones
Stimulate reproductive functions and sexual characteristics.
Eicosanoids
Have diverse effects on modifying responses to hormones, blood clotting, inflammation, immunity, stomach acid secretion, airway diameter, lipid breakdown, and smooth muscle contraction
Carotenes
Needed for synthesis of vitamin A (used to make visual pigments in eye);
function as antioxidants
Vitamin E
Promotes wound healing, prevents tissue scarring, contributes to normal
structure and function of nervous system, and functions as antioxidant
Vitamin K
Required for synthesis of blood-clotting proteins
Lipoproteins
Transport lipids in blood, carry triglycerides and cholesterol to tissues, and remove excess cholesterol from blood