Which of the following statements about cellular metabolism is false?A) Glycolysis is inhibited when cellular energy levels are abundant.B) Krebs cycle activity is dependent solely on availability of substrate; otherwise it is unregulated.C) In the electron transport chain, electrons decrease in energy level as they are transferred from one electron carrier to the next.D) Reactions of the Krebs cycle take place in the mitochondrial matrix.

Question

03-04-2019
Biology

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Which of the following statements about cellular metabolism is false?A) Glycolysis is inhibited when cellular energy levels are abundant.B) Krebs cycle activity is dependent solely on availability of substrate; otherwise it is unregulated.C) In the electron transport chain, electrons decrease in energy level as they are transferred from one electron carrier to the next.D) Reactions of the Krebs cycle take place in the mitochondrial matrix.

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Erudite1 Erudite1 · Answer 1 · 2019-04-05T15:34:03+02:00

The statement about cellular respiration that is not true is this: KREB'S CYCLE ACTIVITY IS DEPENDENT SOLELY ON AVAILABILITY OF SUBSTRATES; OTHERWISE IT IS UNREGULATED.

Kreb's cycle refers to the series of biochemical reactions through which humans generate energy in the presence of oxygen via the oxidation of acetyl COA.

The major factors that regulate the Krebs cycle is the concentration of ATP and NADH. The cycle is strictly controlled based on the level of energy available in the cells. The key regulatory enzymes for the cycle are isocitrate dehyrogenase and alpha ketoglutarate deydrogenase.