Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 16.1, Problem 1R
Summary Introduction
To review:
Five mechanisms that the cell could use to reduce the activity of Xase in the absence of sugar X.
Introduction:
The prokaryotes synthesize the proteins only when their need arises. This is carried out by shutting off the mechanisms, through which the proteins are synthesized. The prokaryotes do this to save energy as well as
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Chapter 16 Solutions
Life: The Science of Biology
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- What would be the effect on an organism’s ability to use glucose as an energy source if a mutation inactivated glucose 6-phosphatase in the liver?arrow_forwardIn prokaryotes that carry out aerobic respiration, the ________ serves the same purpose as the inner mitochondrial membrane and the ________ serves the same purpose as the mitochondrial matrix. A) ribosomes; plasma membrane B) cytoplasm; plasma membrane C) cytoplasm; cell wall D) cytoplasm; nucleoid E) plasma membrane; cytoplasmarrow_forwardWhich of the following is the process where there is transfer of phosphate group to produce ATP or GTP from an intermediate or substrate? Group of answer choices Oxidative decarboxylation Oxidative phosphorylation Substrate-level phosphorylation Substrate-level decarboxylationarrow_forward
- You are talking with a winemaker about yeast. "I know that yeast can survive under both aerobic and anaerobic conditions," he says, "but what I don't understand is why they seem to need so much more sugar under anaerobic conditions. I think they gobble a hundred times as much sugar." Can you explain to him why yeast might need more sugar under anaerobic conditions than under aerobic conditions? Is his estimation of a hundred times as much sugar reasonable?arrow_forwardWhat is the difference between substrate-level phosphorylation and oxidative phosphorylation? Please give an example of each.arrow_forwardKinases are enzymes that transfer a phosphoryl group from a nucleosidetriphosphate. Which of the following are valid kinase-catalyzed reactions? (a) ADP + CMP → AMP + CDP. (b) AMP + ATP → 2 ADP.arrow_forward
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