(Moderate) Psychrotolerant microbes ________ in cold environments, whereas psychrophilic microbes ________ in cold environments. Survive; grow Grow; thrive Are in lag phase; are in stationary phase Grow; require Use transporters; synthesize fats
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Psychrophilic microbes, on the other hand, thrive in cold temperatures and have optimal growth at low temperatures. Show more…
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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
Keemin L.
a) grows in the peripheral areas of the body due to its need for cooler body temperatures. (2 words, use Scientific name rules for credit) b) require both a ______ and an _________ source for growth. c) Bacterial cells produce _______ __________ to protect themselves from toxic forms of oxygen. d) Bacteria that infect humans and can survive body fevers are ___________ ___________.
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