How does citrate inhibit cellular respiration?
Citrate. Citrate, the first product of the citric acid cycle, can also inhibit PFK. If citrate builds up, this is a sign that glycolysis can slow down, because the citric acid cycle is backed up and doesn’t need more fuel.
Why is ATP required for glycolysis?
Terms in this set (45) Why is ATP required for glycolysis? A) ATP makes it easier to break apart glucose into two three-carbon molecules. ATP is used to reduce NAD+ to NADH.
What is the fate of pyruvic acid in an organism that uses aerobic respiration?
Pyruvic acid supplies energy to living cells through the citric acid cycle (also known as the Krebs cycle ) when oxygen is present (aerobic respiration); it ferments to produce lactic acid when oxygen is lacking ( fermentation ). Pyruvate is the output of the anaerobic metabolism of glucose known as glycolysis.
What is the fate of pyruvic acid in aerobic respiration quizlet?
A proton gradient allows hydrogen ions to flow back into the cells through transmembrane protein channels, releasing energy that is used to generate ATP. What is the fate of pyruvic acid in an organism that uses aerobic respiration? It reacts with oxaloacetate to form citrate. It is converted into acetyl CoA.
Which of the following is the best definition of aerobic cellular respiration?
Definition. Aerobic respiration is the process by which organisms use oxygen to turn fuel, such as fats and sugars, into chemical energy. In contrast, anaerobic respiration does not use oxygen. Respiration is used by all cells to turn fuel into energy that can be used to power cellular processes.
What are the three main processes that make up aerobic respiration?
Aerobic respiration is divided into three main stages: Glycolysis, Citric acid cycle and Electron transport chain.
What is the correct formula for aerobic cellular respiration?
Summary. Aerobic respiration is the aerobic catabolism of nutrients to carbon dioxide, water, and energy, and involves an electron transport system in which molecular oxygen is the final electron acceptor. The overall reaction is: C6H12O6 + 6O2 yields 6CO2 + 6H2O + energy (as ATP)
What are the two steps of aerobic respiration?
Steps of Aerobic Respiration
- Glycolysis. It is the primary step of aerobic respiration is glycolysis and takes place within the cytosol of the cell.
- Formation of Acetyl Coenzyme A. The second step in aerobic respiration is the formation of acetyl coenzyme A.
- Citric Acid Cycle.
- Electron Transport Chain.
What are the 5 steps of cellular respiration?
The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.
What is the process of cellular respiration?
Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.
Why is glucose broken down in a series of steps?
The series of steps where glucose is broken down to release energy begins with a metabolic pathway called glycolysis. Glycolysis is the “lysing” or cutting of glucose to release energy. Because aerobic respiration breaks the sugar all the way down, it releases much more energy than fermentation.
What is the role of ATP synthase?
The function of ATP synthase is to synthesize ATP from ADP and inorganic phosphate (Pi) in the F1 sector. This is possible due to energy derived from a gradient of protons which cross the inner mitochondrial membrane from the intermembrane space into the matrix through the Fo portion of the enzyme
Which of the following pathways produces the greatest amount of ATP?
What stage is also known as the citric acid cycle?