membranes_1 baskası

membranes_1 baskası - COURSES> BME...

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Unformatted text preview: COURSES > BME 111: ENG PERS BIOL SYS MW (2007 FALL) > ASSIGNMENTS > TAKE ASSESSMENT: MEMBRANES 1 Take Assessment: membranes 1 Tight junctions are. 1. are found in red blood cells form impermeable seals permit water molecules to move between cells All of the above Cholesterol has what effect on the membrane? 2. More fluid less permeable more elastic stiffer 3. All bacteria are pathogenic, that is, they can make you sick True False 4. Cell-cell adhesions. hold bacteria together attach eukaryotic cells together may attach to cytoskeletal proteins All of the above A and C B and C 5. Lysosomes are vacuoles containing digestive enzymes. True False 6. The rough endoplasmic reticulum. Pg37 coloring book. synthesizes proteins for secretion to the outside of the cell has ribosomes on its outer surface connects to the nuclear membranes All of the above. 7. Membrane proteins. may only be inserted into the cytoplasmic leaflet of the cell membrane may be associated with the ribosomes may go through both leaflets to completely transverse the membrane All of the above A and C 8. Which of these molecules can go through a membrane? C6H12O6 K+ Cl – None of them 9. The functions for Membrane proteins include. receptors for other molecules or proteins that are outside the cell identifier tags to mark self/ non-self enzymatic activity either inside or outside the cell All of the above A and B 10. The phospholipids in a lipid bilayer self-assemble because of the hydrophobic regions in a phospholipid molecule want to be next to water. True False 11. The phospholipids can move around within the leaflet of the lipid bilayer. True False 12. Plant cell walls contain cellulose contain pectin prevent cells from bursting. contain cellulose contain pectin prevent cells from bursting All of the above ...
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This note was uploaded on 03/24/2009 for the course BME bme 111 taught by Professor C.pauken during the Fall '07 term at ASU.

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membranes_1 baskası - COURSES> BME...

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