Bio quiz 6
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A cell has enough available ATP to meet its needs for
about 30 seconds. What is likely to happen when an athlete exhausts his or her
- Catabolic processes are activated
- that generate ATP.
Following glycolysis and the Krebs cycle and before the
electron transport chain and oxidative phosphorylation, the carbon skeleton of
glucose has been broken down to CO2. Most of the energy from the
original glucose at that point is still in the form of ________.
What electron carrier(s) function in the Krebs cycle?
both NAD+ and FAD
When one of the eight Krebs cycle intermediates is added to the respiration medium of living cells, like yeast, what happens to the rates of ATP and carbon
dioxide production? (Assume energy levels are low.)
- The rates of ATP production and
- carbon dioxide production both increase.
The process of joining the hydrolysis of ATP generating ADP + Pi to an endergonic reaction to provide the necessary energy to drive the
energy requiring reaction to the formation of products is known as:
Why are fermentation reactions important for cells?
- They regenerate NAD+ so that
- glycolysis can continue.
the reaction CH4 (methane) plus O2 yields CO2
plus H2O plus energy. Which of the following is true?
- Methane acts as an electron
Which of the following compounds inhibits pyruvate
dehydrogenase via feedback inhibition?
Under which conditions will the Krebs cycle be
high levels of NAD+
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