241.
Which will be a characteristic of a steroid that is part of a cell membrane?
A
It will contain an amide bond.
B
It will contain a hydroxyl group.
C
It will contain four aromatic rings.
D
It will contain choline.
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Which will be a characteristic of a steroid that is part of a cell membrane?
It will contain an amide bond.
It will contain a hydroxyl group.
It will contain four aromatic rings.
It will contain choline.
Which type of membrane lipid could contain serine?
a ganglioside
a globoside
a cerebroside
a glycerophospholipid
Which type of membrane lipid contains an acidic oligosaccharide?
globoside
phosphatidylinositol
cerebroside
ganglioside
Which property does this lipid share with a typical triacylglycerol?
Both are saponifiable.
Both contain an ether bond.
Both contain a long-chain alcohol.
Both are amphipathic.
Which property can be shared by this lipid and a terpene?
Both can form micelles.
Both can contain a saturated fatty acid.
Both can be very hydrophobic molecules.
Both can contain isoprene.
Which of the following molecules is a typical fatty acid?
An amphipathic dicarboxylic acid with unconjugated double bonds.
A molecule that has one cis double bond in a linear carbon chain.
A polar hydrocarbon with that reacts with to form a salt.
A molecule that has an even number of carbon atoms in a branched chain.
Which of the following is a characteristic of both waxes and terpenes?
Both can contain a fatty acid.
Both can be non-saponifiable.
Both can contain oxygen.
Both can contain an amino alcohol.
Which of the following is a characteristic of both triacylglycerols and glycerophospholipids?
Both contain fatty acids and are saponifiable.
Both contain glycerol and ether bonds.
Both can be negatively charged at cellular pH.
Both contain carboxyl groups and are amphipathic
Which membrane lipid contains an amide bond?
phosphatidylserine
phosphatidic acid
sphingomyelin
cholesterol
Which is a property of eicosanoids?
All eicosanoids contain arachidonic acid and sphingosine.
Prostaglandins and leukotrienes both contain a ring structure.
Thromboxanes and prostaglandins both contain a carboxyl group.
All eicosanoids contain three conjugated double bonds.
Which is a general property of cell membranes?
Membrane proteins have a polar head and a non-polar tail.
Membrane lipids are amphipathic.
Membranes contain covalent bonds between fatty acids.
Membranes contain more lipid than protein.
Which is a characteristic of the lipids in a biological membrane?
Lipid molecules are held in fixed positions by non-covalent bonds with proteins.
The fluidity of the membrane decreases with lower levels of saturated fatty acids.
The fatty acids of lipid molecules are found in the interior of the membrane.
Specific glycerophospholipids are distributed equally on the two membrane surfaces.
Which is a characteristic of sphingolipids?
They all contain a long-chain alcohol joined to isoprene.
They all contain ceramide joined to a polar group.
They all contain a carbohydrate joined to a phosphate group.
They all contain a fatty acid joined to glycerol.
Which is a characteristic of biological membranes?
Membranes have an asymmetrical micelle structure.
Membranes have hydrophobic groups on the surfaces.
Membranes contain lipids that polymerize into one large molecule.
Membranes contain proteins and amphipathic lipids.
Which is a characteristic of all the fatty acid components in this lipid?
They all contain unconjugated cis double bonds.
They all are joined to glycerol through an ester bond.
They all are hydrophilic because they contain oxygen.
They all contain an unbranched carbon chain.
Which component is found in all sphingolipids?
a negative charge
a phosphate group
an amino alcohol
a carbohydrate
Which characteristic is shared by this lipid and an eicosanoid?
This lipid and a thromboxane can both be hydrolyzed in base to produce soaps.
This lipid and a prostaglandin can both be hydrolyzed in acid to create fatty acids.
This lipid and an arachidonic acid both contain glycerol and hydrocarbon chains.
This lipid and a leukotriene are both polyunsaturated molecules.
Which characteristic does this lipid share with a wax?
Both contain three fatty acids.
Both contain one or more ester bonds.
Both contain one or more carboxyl groups.
Both contain a polar head.
Based on its structural similarity to other lipids, this lipid most likely functions as
an energy storage molecule.
a sex hormone.
a vitamin required for vision.
a membrane component.
As the volume is inversely proportional to pressure, we can conclude that
p2/V2 = p1V1
p1V1 = p2V2
p1V1 = p2/V2
p1V2 = p2V1