Phosphofructokinase is an allosteric enzyme that catalyzes the conversion of fructose-6-phosphate to fructose-1,6-bisphosphate,
an early step of glycolysis. An increased accumulation of ATP (an allosteric regulator of PFK) would be expected to... a inhibit the enzyme and slow the rates of glycolysis and the citric acid cycle.
b activate the enzyme and slow the rates of glycolysis and the citric acid cycle.
c. inhibit the enzyme and thus increase the rates of glycolysis and the citric acid cycle.
d. activate the enzyme and increase the rates of glycolysis and the citric acid cycle.
e. ATP would have no effect on the rates of glycolysis and the citric acid cycle.
The correct answer is a Inhibit the enzyme and slow the rates of Glycolysis and citric acid cycle.
Explanation:
ATP accumulation result in blocking the activity of the rate limiting enzyme of glycolysis Phosphofructokinase that catalyses the conversion of fructose-6-phosphate to fructose -1,6-bisphosphate .
ATP is an Allosteric inhibitor of Phosphofructokinase enzyme and this enzymatic inhibitiondecreases the rate of glycolysis and as the rate of glycolysis decreases the rate of TCA cycle is also decreased because TCA cycle depends on glycolytic end product Pyruvate. As glycolysis rate is decreased pyruvate is not formed in a sufficient amount to carry out its conversion to Acetyl CoA and enters into TCA Cycle.
they’re a product of sexual reproduction that are usually located on the lower surface of fern leaves. they’re essential for reproduction , they’re clusters of sporangia which contain the spores in plants like ferns & moss
When the volcano erupted, the dark red walking beans were easier to see. Thus, more dark red beans were eaten during days four, five, and six. If the pollution continued, there would be fewer and fewer dark red walking beans over time.
The answer is most likely to be D, because when the photon hits an electron within a molecule of chlorophyl, the energy from the light excites an electron from its normal energy level to an excited energy level!
