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BIO216
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1. The latest Membrane Model is referred to as the

	      Davson Danielle Model

	      Nicholson Model

	--->> Fluid Mosaic Model

	      Mosaic Model

2. All but one of these is a major lipid of the membrane

	      phosphoglycerides

	      sphingolipids

	--->> waxes

	      cholesterol

3. One of these is not a property of biological membranes

	      They posses specific recognition sites

	--->> They do not allow passage of lipids through them

	      they have fluidity

	      they contain electrically charged  surface groups

4. A lipid bilayer can close in on itself to form a________

	--->> sialic acid

	      oligosaccharide

	      micelle

	      liposome

5. Which of these has a double ring?

	      thymine

	--->> guanine

	      thiouracil

	      cytosine

6. The  specific concentration of lipid required for micelle formation is called ________

	      absolute micelle concentration

	--->> critical micelle concentration

	      focal micelle formation

	      net micelle concentration

7. One of these is a purine base

	--->> adenine

	      thymine

	      cytosine

	      uracil

8. Which of these is a sugar found in nucleosides?

	      glucose

	      fructose

	      mannose

	--->> ribose

9. Membranes have all but one of these function

	      Serve as components of nerve calls

	      serve as receptors of hormones

	--->> controls  molecular signals

	      controls movement of molecules in and out of the cell

10. Which of these Scientist proposed the Mosaic model of membranes

	      Danielle

	      Robertson

	      Davson

	--->> Singer