In: Biology
Under which circumstances would a muscle cell be undergoing -oxidation instead of glycolysis? Select all correct answers.
a. Cellular ATP levels are low
b. O2 is limited
c. O2 is abundant
d. Cellular ATP levels are high
e. Blood glucose levels are low
Under the circumstances would a muscle cell be
undergoing oxidation instead of glycolysis are: Cellular ATP levels
are low (Option A); O2 is abundant ( Option C), Blood glucose
levels are low (Option E)
Because, The process of cellular respiration involves two main
steps. In the first step, which is called glycolysis, glucose
breaks down. In the second, aerobic respiration breaks the remains
of the glucose down further. During thr aerobic respiration, oxygen
is reduced, donating an electron to hydrogen to form water. The
entire process of cellular respiration oxidizes glucose. This
produces the majority of the energy released in cellular
respiration. Fermentation also involves oxidation and reduction,
and it produces ATP, but it does so less efficiently. Some simple
organisms, like yeasts, use this process in the absence of oxygen.
Even humans use fermentation as a kind of backup for cellular
respiration in muscle cells deprived of oxygen. During
fermentation, a chemical called nicotinamide adenine dinucleotide +
hydrogen (NADH) is oxidized and a chemical called pyruvate is
reduced. This process produces only two ATP molecules per glucose
molecule, while cellular respiration produces 36 ATP molecules from
a single glucose molecule.
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