An extremely efficient enzyme called "efficase" catalyzes the conversion of "a" to"b." a researcher decides to mutate the enzyme in order to try to improve itperformance. following active site mutations, a significant reduction in the value ofkm and vmax was observed. which of the following may have occurred? select one: a. the affinity of the enzyme for the substrate was increased to a point whichdid not favor propagation (continuation) of the reaction. b. the decrease in vmax was not related to the decrease in km. c. if the reaction was firstorder, the change in km cannot have affected vmax. d. the stability of e+s (e + a as written above) was increased, therebyincreasing the km. e. the reverse reaction (breakdown of e+a) was favored, slowing the vmax.
Answers: 3
Biology, 21.06.2019 17:10, alejandra1201
Salmonella typhimurium is a food-borne bacterial pathogen that can cause severe gastrointestinal disease. salmonella is often phagocytosed by macrophages that normally destroy bacterial pathogens, but this bacterium is somehow able to prevent the complete maturation of phagolysosomes. salmonella is able to tolerate the low ph of phagolysosomes, and in fact responds to the drop in ph by secreting toxins that interfere with other cellular responses. which of the following differences would you expect to contribute to the survival of a bacterium within an salmonella-containing phagosome, compared to a healthy phagolysosome? decreased activity of acid hydrolases increased activity of acid hydrolases decreased import of h+ ions increased import of h+ ions my guess is decreased activity of acid hydrolases but i'm not sure.
Answers: 1
Biology, 22.06.2019 01:30, nadiareese
Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve
Answers: 1
An extremely efficient enzyme called "efficase" catalyzes the conversion of "a" to"b." a researcher...
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