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Question set 4 - 4 Vetner wants to use the cellulases he...

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Hank Greene Question Set 4 1. The fact that yeast cells and mammal cells both have similar signal transduction pathways even though their last common ancestor was a billion years ago suggests that cell communication evolved around that time. 2. Cholera produces a toxin that interferes with g-protein function. Since most of cells’ membrane proteins are g-linked protein receptors, this can cause dramatic damage to the function of the cell. 3. You could use Epinephrine receptors to control sugar levels in a cell by either inhibiting the receptors, which would cause less cAMP to be produced and therefore less and slow glycogen breakdown, or flood the body with epinephrine and cause an increase in cAMP and an increase in glycogen breakdown.
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Unformatted text preview: 4. Vetner wants to use the cellulases he finds in the ocean to break down complex sugars into simple ones, which could drive fermentation and produce ethanol. 5. because cellulases can break down the complex sugars that make up plants that aren’t readily accessible. 6. he wants to use cellulases to make the production of ethanol more efficient, cellulases help him to accomplish this because they break down the complex sugars that make up most of a plant, and use all the extra sugar to make more ethanol. 7. Ethanol produces more nitrogen oxides which cause smog pollution, and acetaldehyde which is a toxic pollutant....
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