Fats (PPT) Flashcards
Chemical group called LIPIDS
Fats
3 Classifications of Fats
Fats (Triglycerides)
Phospholipids
Sterols
Food Functions of Fats
Source of Energy
Palatability
Satiety and Satiation
Food Processing
Nutrient Source
is the densest form of stored energy
Fat
energy yielded from fat
9 kcal
feeling of fullness, satisfied
Satiety
tendency to increase our desire to eat additional fatty foods; occurs during consumption
Satiation
Use of _____________________ keep the fat in food products from turning rancid
hydrogenated fats
Some fats contain or transport the fat soluble nutrients of vitamins _____________ and essential fatty acids = ____________________________
A, D, E, K; Linoleic and linolenic fatty acids
Physiologic Functions of Fats
Stored Energy
Organ Protection
Temperature Regulator
Insulation
the storage depot of body fat, provides important fuel during illness or times of food restriction
Adipose tissue
covers nerve cells
Myelin
Specialized transporting compounds
Lipoprotein
Transports fats in the circulatory system
Lipoprotein
Transports absorbed fats after meals to the liver cells
Chylomicrons
Transports trigycerides from liver to tissue
Very Low Density Lipoprotein
Plasma proteins with triglyceride components that carry cholesterol to cells
Low Density Lipoprotein
normal serum range of Very Low Density Lipoprotein
51 – 197 mg/dl
“Bad Cholesterol”
Low Density Lipoprotein
normal serum range of Low Density Lipoprotein
60-180 mg/dl
Plasma proteins that carry fat in the bloodstream to tissue or to the liver to be excreted or disposed
High Density Lipoprotein
“Good Cholesterol”
High Density Lipoprotein
Normal serum range of High Density Lipoprotein:
35 – 70 mg/dl
Refers to the maximum amount of hydrogen ions that fat can hold
Saturation
Contains no double bonds (has a single bond carbon chain – hydrogen atoms are attached to all bonding sites)
Saturated fatty acid
Usually animal in origin
Saturated fatty acid
Contains double bonds
Unsaturated fatty acid
Usually plant in origin
Unsaturated fatty acid
Unsaturated fatty acid
- Monounsaturated fatty acid
- Polyunsaturated fatty acid
has only one unsaturated double bond
Monounsaturated fatty acid
More than one carbon to carbon double bond
Polyunsaturated fatty acid
Only have 2 fatty acids + 1phosphate group
Phospholipids
Lipid compounds that form part of the cell walls and act as a fat emulsifier
Phospholipids
main phospholipid, naturally found in egg yolks, soybeans, used as an additive to food products to stabilize consistency
Lethicin
Fatlike class of lipids that serve vital functions in the body
Sterols
produced by the liver and found in dietary sources
Cholesterol
Component of bile salts that aid in digestio
Cholesterol
Increased levels of Cholesterol
= CAD
TONGUE PRODUCES ___________________ DURING INFANCY FOR FAT IN MILK
LINGUAL LIPASE
FATS ENTERING THE DUODENUM INITIATE RELEASE OF _______________________ HORMONE. THIS SPARKS GALLBLADDER TO RELEASE ________ INTO SMALL INTESTINES. BILE EMULSIFIES FATS FOR DIGESTION.
CHOLESYSTOKININ; BILE
EMULSIFIES FATS FOR DIGESTION
BILE
