Quiz on Biomembranes | Plasma membranes Quiz | Cell biology Quiz

1. All the following statements are true with ragard to bimembranes, except
They are selectively permeable
have onterior hydrophilic and exterior hydrophobic groups
lipid bilayers contain phospholipids and chloestrol
Carbohydrate residues are located on their surfaces
2. The fluid mosaic model of membrane includes
Chloestrol molecules in the membrane increase stability of membrane
membrane proteins are fixed and cannot move
membrane contains biomelecular leaflet of lipids
permeability of drugs across cell membrane is dependent on their solubility in water
3. All the following lipids are present in cell membranes, except
Lecithin
Lecithin
Sphingomyelin
Triacylyglycerol
4. Fluidity of membranes depends on:
nature of fatty acids
Concentration of proteins
membrane pumps
glycosylation of preoteins
5.The fluid mosaic model of membrane includes:
Chloestrol molecules increase stability of membrane
membrane contains biomolecular leaflet of lipids
membrane proteins are fixed and cannot move
Permeability of drugs across cell membrane is dependent on their solubility in water
6. Sodium -potassium pump is inhibited by
Valinomycin
Digoxin
Dicoumarol
Phlorizin
7. Which of the statements regarding active transport is incorrect?s
energy dependent
requires carrier protein
against concentration gradient
transport of water is an example
8. All the following are channel formers, except
Glutamate
Gramicidin
Valinomycin
Amelogenin
9. Symport system operates in the transport of
Calcium
Glucose
Bicarbonate
Chloride
10. Phagocytosis involves
respiratory burst
endosmosis
alpha oxidation
lipid peroxidation
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Correct answers: