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According to the fluid-mosaic model of a cell membrane, the main component of a membrane is
a lipid bilayer
A double cheeseburger with bacon contains 640 kcal and 39 g of fat. Calculate the number of kilocalories from fat. (1 gram of fat = 9 kcal; 1 gram of carbohydrate or protein delivers 4 kcal.)
350 kcal from fat
Unsaturated fatty acids have lower melting points than saturated fatty acids because
the cis double bonds give them an irregular shape.
A double cheeseburger with bacon contains 640 kcal and 39 g of fat. Calculate the percentage of total kilocalories due to fat (1 gram of fat = 9 kcal).
55% of total kilocalories
In the fluid-mosaic model that describes plasma membranes,
two layers of glycerophospholipid molecules have their nonpolar sections oriented to the inside of the membrane.
In this diagram of a cell membrane, the small branched object labeled (A) is part of a
carbohydrate side chain
The steroid hormone that increases the blood glucose and glycogen levels from fatty acids and amino acids is
Which statement is NOT true?
Oxidation of lipids provides half as much energy as oxidation of carbohydrates..
Commercially, liquid vegetable oils are converted to solid fats such as margarine by
Glycerolphospholipids can interact both with other lipids and water because they contain both __________ and __________.
polar regions; nonpolar regions.
Margarine containing partially hydrogenated soybean oil is solid because
some of its double bonds have been converted to single bonds..
The components in the following glycerolphospholipid are
glycerol, palmitic acid, phosphate, and ethanolamine.
A fatty acid salt can act as a soap to remove grease because
the nonpolar tails of the salt dissolve in the grease and the polar salt ends dissolve in water.
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