Lipids Question Preview (ID: 24567)
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__________ form the largest class of fats and oils in the human diet.
a) Phospholipids
b) Sterols
c) Triglycerides
d) Lipoproteins
A fatty acid is saturated when it contains all the _____ atoms its molecular structure allows.
a) Carbon
b) Oxygen
c) Nitrogen
d) Hydrogen
Butter that has softened to o much can become usable again by chilling it to its _______________.
a) Boiling Point
b) Solidification Point
c) Melting Point
d) Freezing Point
Hydrogenation helps stabilize a lipid by increasing the proportion of ______ bonds.
a) Single
b) Double
c) Covalent
d) Ionic
Excess fat is stored in the body as ______.
a) lipoproteins
b) cholesterol
c) fatty acids
d) adipose tissue
Dietary _______ is believed to contribute to heart disease.
a) cholesterol
b) fiber
c) supplements
d) enzymes
___________ are identified by the length of their carbon chain.
a) hydroxyl groups
b) carboxyl groups
c) fatty acids
d) lipoproteins
_____________ form double bonds in place of hydrogen atoms in their molecular structure.
a) Saturated Fats
b) HDL
c) LDL
d) Unsaturated Fats
Generally, fats don't become rancid in a(n) ______ - free environment.
a) hydrogen
b) oxygen
c) carbon
d) nitrogen
Cholesterol is transported in the blood by __________.
a) lipoproteins
b) adipose tissue
c) plaque
d) trans fat
A molecular structure that includes a carbon atom, an oxygen atoms, and a hydroxyl group is called a ______.
a) fatty acid
b) carboxyl group
c) hydroxyl group
d) plaque
Avoiding high-cholesterol foods helps you limit one of the main contributors to _______ in your arteries.
a) plaque
b) lipoproteins
c) triglycerides
d) phospholipids
Heating a fat to its ______________ hastens its decomposition.
a) solidification point
b) smoke point
c) melting point
d) boiling point
Animal products contain the only _______ found in foods.
a) lipoproteins
b) triglycerides
c) cholesterol
d) calories
A double bond involves a total of _____ shared electrons.
a) 2
b) 4
c) 6
d) 8
How many calories are in each gram of fat?
a) 2
b) 4
c) 7
d) 9
Lipoproteins that carry cholesterol from liver to body tissues and is known as bad cholesterol are called _____.
a) HDL
b) LDL
c) IDL
d) ODL
Which of the following is an example of a trans fat?
a) butter
b) lard
c) margarine
d) olive oil
Which of the following is an example of a saturated fat?
a) butter
b) margarine
c) canola oil
d) shortening
Which of the following is an example of an unsaturated fat?
a) butter
b) margarine
c) lard
d) vegetable oil
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