E. coli uses which of the following enzymes to regulate membrane fluidity?
A) glucose-6-phosphatase
B) desaturase
C) fatty acid convertase
D) gangliosidase
E) kinase
Answer: B
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Avery used the enzyme _______ to remove the proteins from the cell extracts
A. protease B. DNase C. RNase D. All of the answers are correct
During exposure to elevated glucose, a yeast cell will increase its uptake of glucose. Describe the mechanism by which the yeast sense the extracellular glucose.
A. By the increase in energy outside the cell when the glucose is metabolized. B. By glucose diffusing into the nucleus and binding to transcription factors. C. By the increase in energy inside the cell when the glucose is metabolized. D. By glucose uptake through glucose transporters. E. By glucose binding to glucose receptors.
Four of the five processes listed below promote
transpiration. Select the exception. a. potassium ions pumped into guard cells b. turgor pressure building up in guard cells c. photosynthesis occurring in guard cells d. carbon dioxide entering leaf e. activity of abscisic acid
________ carbon atoms allow for the formation of ________, which are mirror images of each other
Fill in the blank with correct word.