Question

1. Which of the following processes will most likely occur when you transfer a bacterial culture from 37 degree C to 10 degree C? a) the bacteria will start synthesizing cholesterol b) the bacteria will remove cholesterol from their membranes c) the bacteria will reduce the number of unsaturated bonds in the fatty acid tails of their phospholipids d) the bacteria will increase the synthesis of phospholipids with very long fatty acid tails and insert these into their membranes e) the bacteria will increase the synthesis of phospholipids with unsaturated fatty acid tails and insert these into their membranes 2. Following up on question 1, which of the following best describes what would happen to a culture of yeast cells that was shifted from 37C to 10C? a) The cells will die because their plasma membrane will be leaky b) The cells will increase the synthesis of phospholipids with long, saturated fatty acid chains c) The cells will increase the synthesis of phospholipids with short saturated fatty acid tails d) The cells will insert more cholesterol into their ER membrane e) The cells will insert more ergosterol into their plasma membrane f) The cells will remove phospholipids with unsaturated fatty acid tails from their plasma membrane

          1. Which of the following processes will most likely occur
when you transfer a bacterial culture from 37 degree C to 10 degree
C?
a) the bacteria will start synthesizing cholesterol
b) the bacteria will remove cholesterol from their membranes
c) the bacteria will reduce the number of unsaturated bonds in
the fatty acid tails of their phospholipids
d) the bacteria will increase the synthesis of phospholipids
with very long fatty acid tails and insert these into their
membranes
e) the bacteria will increase the synthesis of phospholipids
with unsaturated fatty acid tails and insert these into their
membranes
2. Following up on question 1, which of the following best
describes  what would happen to a culture of yeast cells that
was shifted from 37C to 10C?
a) The cells will die because their plasma membrane will be
leaky
b) The cells will increase the synthesis of phospholipids with
long, saturated fatty acid chains
c) The cells will increase the synthesis of phospholipids with
short saturated fatty acid tails
d) The cells will insert more cholesterol into their ER
membrane
e) The cells will insert more ergosterol into their plasma
membrane
f) The cells will remove phospholipids with unsaturated fatty
acid tails from their plasma membrane

Added by Amy G.

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