Put the following events of cellular respiration in the correct order. E Molecules are transported from the cytosol to the inner mitochondrial matrix. A Glucose is catabolized into two 3-carbon molecules. C Acetyl CoA reacts with oxaloacetate to form citric acid (aka citrate). D Pyruvate is catabolized into a 2-carbon molecule and a molecule of CO2. B A molecule of FADH2 is produced.
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Place the following steps of cellular respiration in the correct order by numbering them from 1 to 4 . ________a. The Krebs cycle produces the energy carriers NADH, $\mathrm{FADH}_{2},$ and ATP. _________b. If oxygen levels are adequate, pyruvate is transported into the mitochondrion. If oxygen levels are very low, fermentation proceeds. _______c. Glucose is broken down to produce ATP and NADH. _________d. An electron transport chain produces ATP from ADP.
Put the steps of Cellular Respiration in order. 1. In the Citric Acid/Krebs Cycle, the carbons that are left from the initial glucose are oxidized, releasing more CO2. NADH and FADH2 and 2 ATP molecules are produced. 2. Glycolysis takes place in the cytoplasm and breaks down glucose to form two molecules of pyruvate. 2 ATP is produced, and NADH is saved for later. 3. Two molecules of pyruvate move into the mitochondria where they are converted into Acetyl CoA. More NADH is produced, and CO2 is released. 4. In the electron transport chain, the NADH and FADH2 give up electrons. Energy is released and captured as it moves from a high concentration to a low concentration. 5. Energy is used to produce about 34 ATP. Oxygen is the terminal electron acceptor that combines with oxygen to produce water.
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Match the reactions with the events. ________glycolysis ________fermentation ________Krebs cycle ________electron transfer phosphorylation a. ATP, NADH, FADH $_{2}$ and $\mathrm{CO}_{2}$ form b. glucose to two pyruvate c. $\mathrm{NAD}^{+}$ regenerated, little ATP d. $\mathrm{H}^{+}$ flow via ATP synthases
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