A.   Phospholipids

        B.   Glycolipids

        C.  Acids

        D.   Cholesterols

        A.   Cilia are on the apical surfaces of the cytoskeletal cells.

        B.   Microvilli are on the apical surfaces of the epithelial cells.

        C.   Filopodia are on the apical surfaces of the epithelial cells.

        D.   Extensions are ensheathed in membrane and project from the surface of the cell

        A.   cytoskeleton

        B.   integral

        C.   epithelial

        D.   exoskeleton

        A.   Peripheral proteins are proteins that are strongly bounded to the membrane by hydrogen bonding.

        B.   Peripheral proteins are proteins that are bounded to the membrane by electrostatic interactions and hydrogen bonding with the hydrophilic phospholipid heads.

        C.   Peripheral proteins are proteins that are visualized by electron microscopy or fluorescence microscopy.

        D.   Peripheral proteins are those proteins that are always bounded to the surfaces of integral proteins on either the cytoplasmic side of the cell and the extracellular side of the membrane and are anchored to the bilayer through covalent bond with a fatty acid.

        A.   desmosomes

        B.   cadherins

        C.   caveolaes

        D.   phospholipid

        A.   galactose, sialic acid

        B.   lymphocyte, galacturosidate

        C.   glycoclyx, glycolipids

        D.   chemicals, information

        A.   Liposomes are circular pockets that are enclosed by a lipid bilayer

        B.   Liposomes are plasma membranes which contain predominantly, glycoproteins.

        C.   Liposomes are cerebrosides.

        D.   Liposomes are gangliosides.

        A.   It confers strengthening and drawy effects on the membrane.

        B.   It confers stiffening and strengthening effects on the membrane.

        C.   It confers lengthening and craking effects on the membrane.

        D.   It confers broadening and strengthening effects on the membrane.

        A.   Unsaturated lipids fatty acids may be saturated or unsaturated, with the configuration of the double bonds nearly always cis, thus decreasing cell membrane fluidity.

        B.   Unsaturated lipids may be unsaturated, in which case the configuration of the double bonds decreases cell membrane fluidity.

        C.   Unsaturated lipids create a kink, which prevents the fatty acids from packing together as tightly, thus decreasing the melting temperature of the cell membrane.

        D.   The entire cell membrane is held together via non-covalent interaction of hydrophobic tails, which decreases its melting temperature.

        A.   The ability of organisms to generate heat from breakdown of fatty chains in phospholipids and glycolipids.

        B.   The ability of the organisms to exchange phospholipid molecules between intracellular and extracellular leaflets of the bilayer.

        C.   The ability of some organisms to regulate the fluidity of their cell membranes by breakdown of fatty chains .

        D.   The ability of some organisms to regulate the fluidity of their cell membranes by altering lipid composition.

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