Feedback inhibition is defined as a mechanism of down-regulating enzyme activity by the accumulation of a product earlier in the pathway
a. true
b. false
b. false - later in pathway
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Which of the following is not an allosteric inhibitor of an enzyme in the glycolytic pathway?
A) acetyl CoA B) glucose-6-phosphate C) citrate D) fructose-2,6-bisphosphate E) ATP
A random change in allele frequency over time that is brought about by chance alone is known as ____
a. genetic drift b. gene flow c. natural selection d. disruptive selection e. balanced polymorphism
The IPAT model can be refined by adding the variable, S = Sensitivity. Which of the following biomes is the most sensitive with regard to shallow acidic soils that destabilize quickly after deforestation?
A. temperate grassland B. tropical rainforest C. temperate deciduous forest D. wetland E. All of the above are characterized by shallow acidic soils.
Although glycolysis requires an input of ATP, this pathway results in a net gain of two ATP; therefore it is a(n) ________ pathway.
A. exergonic B. endergonic C. oxidative D. reductive E. neither exergonic nor endergonic