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20 Cards in this Set
- Front
- Back
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3 classes of lipids
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triglycerides, phospholipids, sterols
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2 types of triglycerides
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fats- solid, from animal sources, saturated
oils- liquid, from plants |
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fats
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solid at room temp, animal sources, saturated
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8 uses of lipids
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energy, shock absorption, thermal insulation, cell membrane,
nervous tissue, icosanoids, satiety, raw materials |
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lipids store:
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vitamins A, D, E, K
essential fatty acids (linoleic and alpha-linolenic) energy |
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triglycerides
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3 fatty acids + glycerol
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2 ways triglycerides vary
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chain length, degree of saturation
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glycerol
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3 carbon molecule
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fatty acid
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chain of carbon atoms with two ends (acid and methyl)
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saturated fatty acid
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2 H atoms attached to each carbon, no double bonds, solid at room temp, may adversely affect health
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saturated fatty acids are found in
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animal products, palm and coconut oil
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fatty acids are named from
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the omega (CH3) end
omega-3, omega-6 |
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2 essential fatty acids
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linoleic, linolenic
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phospholipids
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glycerol + 2 fatty acids + 1 phosphate
•found in cell membranes •emulsifiers (lecithin) |
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sterols
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consist of interconnected rings of carbon atoms w/ side chains of attached C, H, & O
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digestion of lipids mostly occurs here
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small intestine
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pancreatic enzymes break down
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triglycerides into fatty acids and glycerol
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bicarbonate ___________
and bile __________ |
______- neutralizes acids
______- emulsifies fat |
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free fatty acids and glycerol are absorbed into _______ and transported to ________
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- the bloodstream
- the liver or other tissues |
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chylomicrons
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long chain fatty acids and monoglycerides →
triglycerides +cholesterol+phospholipids+ proteins ⇒ |
