25. How many carbon dioxide
molecules are liberated after
each cycle of the Krebs cycle?
For a single glucose how many
carbon dioxide molecules
were already liberated by the
aerobic respiration at that
point?

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Each round ofthe cycle liberates
two dioxide molecules.

At end of the all carbon atoms
the original glucose
degraded in glycolysis already
liberated incorporated carbon
dioxide molecules. occurs because
for glucose two pyruvic
molecules were made glycolysis.
Each ofthese pyruvic acids then
converted into acetylCoA liberation
of one dioxide molecule (two
total). Since each the two produced
CoA cycles the cycle once,
from initial glucose two of
the Krebs is generated and four
other carbon molecules are
made.

of the six of the glucose
are then incorporated six
carbon dioxide (two made
during CoA formation and
during the two of the Krebs
).