In: Biology
A pathogenic (disease-causing) E. coli bacterium living on a cold piece of dirty romaine lettuce in your fridge suddenly finds itself in the nice, warm, and cozy human intestine. How will this bacterium maintain the same level of membrane fluidity now that it's in a such a different environment?
produce membrane lipids with hydrocarbon tails that are longer and have more double bonds |
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produce membrane lipids with hydrocarbon tails that are longer and have fewer double bonds |
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produce membrane lipids with hydrocarbon tails that are shorter and have more double bonds |
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decrease the amount of cholesterol in the membrane overall |
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reduce the amount of glycolipids in the membrane |
Ans Produces membrane lipids with hydrocarbon tails that are longer and have fewer double bonds
At high temperature the membrane fluidity increases as the intermolecular forces between the membrane decreases compared to the kinetic energy of the phospholipid molecule. Thus, the membrane fluidity increases at high temperature and decreases at low temperature. To maintain the same level of membrane fluidity even at high temperature for the above pathogenic bacteria various modulation are adopted by the cell.