Is phosphorylated under the influence of insulin is activate

Is phosphorylated under the influence of insulin? is activated when phosphorylated is phosphorylated in the liver form only during conditions of low blood sugar. is bypassed by the 2^nd bypass reaction of gluconeogenesis. consumes one ATP in the enzymatic reaction. Pyruvate dehydrogenase complex; is activated by phosphorylation. is activated by the presence of ATP. is activated by the presence of NADH. is inhibited by the presence of ADP. is activated by the presence of pyruvate? Which of the following types of cells can ONLY use glycolysis for ATP production? Brain cells Skeletal muscle cells Erythrocytes liver cells How many protons are pumped per NADH or FADH2 by cytochrome C oxidase (Complex IV)? One Two Four Eight None In the Q cycle: two electrons are moving from coenzyme Q to cytochrome C. two electrons are reducing NAD+. electrons are moving from complex I to complex II. cytochrome C carries orate electron at a time to complex IV. electrons are entering the electron tr

Solution

Answer:

22. (C) Pyruvate kinase is phosphorylated in the liver form only during conditions of low blood sugar.

During a fasting state, pyruvate carboxylase phosphorylates pyruvate kinase, inactivating the enzyme and therefore, preventing phosphoenolpyruvate from being converted into pyruvate in the liver. Instead, phosphoenolpyruvate is converted into glucose via a cascade of gluconeogenesis reactions.

Pyruvate kinase is phosphorylated under the influence of glucagon.

Pyruvate kinase is inactivated when phosphorylated.

Pyruvate kinase is bypassed in the 3rd bypass step of gluconeogenesis.

Pyruvate kinase does not consume ATP but aconverts ADP to ATP.