Cell Biology Questions
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Starting with citrate, which of the following combinations of products would result from three acetyl CoA molecules entering the citric acid cycle?
For each glucose that enters glycolysis, _____ NADH + H+ are produced by the citric acid cycle.
How many carbons are in iso-citrate?
If a mitochondrion ran out of molecular oxygen (O2), predict which of the following situations would occur in its electron transport chain.
Once the electron donor in glycolysis gives up its electrons, it is oxidized to a compound called .
The final electron acceptor of cellular respiration is _____.
Carbon dioxide (CO2) is released during which of the following stages of cellular respiration?
In glycolysis there is a net gain of _____ ATP.
Gaseous hydrogen burns in the presence of oxygen to form water:2H2 + O2 → 2H2 O + energyWhich molecule is oxidized and what kind of bond is formed?
Which terms describe two atoms when they form a bond in which electrons are completely transferred from one atom to the other?
What happens to a glucose molecule when it loses a hydrogen atom as the result of an oxidation-reduction reaction?
How many carbons in oxaloaceate
How many carbons are in succinate?
In glycolysis, as in all the stages of cellular respiration, the transfer of electrons from electron donors to electron acceptors plays a critical role in the overall conversion of the energy in foods to energy in ATP. These reactions involving electron transfers are known as oxidation-reduction, or redox, reactions.Drag the words on the left to the appropriate blanks on the right to complete the sentences.
How many carbons are in alpha-ketoglutarate?
Drag each compound to the appropriate bin. If a compound is not involved in acetyl CoA formation, drag it to the "not input or output" bin. (Note that not all of the inputs and outputs of acetyl CoA formation are included.)
How many carbons are in cis-aconitate?
is the compound that functions as the electron acceptor in glycolysis
In the oxidation of pyruvate to acetyl CoA, one carbon atom is released as CO2. However, the oxidation of the remaining two carbon atoms—in acetate—to CO2 requires a complex, eight-step pathway—the citric acid cycle. Consider four possible explanations for why the last two carbons in acetate are converted to CO2 in a complex cyclic pathway rather than through a simple, linear reaction.Use your knowledge of the first three stages of cellular respiration to determine which explanation is correct.
Among the products of glycolysis, which compounds contain energy that can be used by other biological reactions?