The options are missing from the question. They are;
a. These enzymes are inhibited but not destroyed under conditions
of starvation since destroying them would require energy input.
b. These enzymes continue to be needed since catabolism of lipids
and proteins leads to intermediates that are oxidized through
these pathways.
c. Once enzymes are produced in a cell, they continue to function
for as long as the cell lives even if they are not used.
d. All catabolic enzymes are expressed when energy levels are low
in a cell, including enzymes that cannot oxidize the fuel
molecules that are available.
e. The cell continues to produce these enzymes in case glucose or
other carbohydrates become available again.
The correct answer to the question is option B
THESE ENZYMES CONTINUE TO BE NEEDED SINCE CATABOLISM OF LIPIDS AND PROTEINS LEADS TO INTERMEDIATES THAT ARE OXIFIZED THROUGH THESE PATHWAYS.
The enzymes involved in glycolysis are; hexokinase, phosphofructokinase, and pyruvate kinase.
The cell use Amino acids as energy source through the conversion of the amino acids that enter glycolysis or the citric cycle that are eventually catabolized to CO2 at various points through the help of their enzymes (fumarase) or (fumarase hydratase) speeding up the rate of the reaction.(pyrimidines).
