Terms in this set (189) Both processes include glycolysis, the citric acid cycle, and oxidated phosphorylation. In aerobic respiration the final electron acceptor is molecular oxygen O2; in anaerobic respiration the final electron Accceptor is a different substance.Similarly, it is asked, how is oxygen the final electron acceptor?
Explanation: In cellular respiration, oxygen is the final electron acceptor. Oxygen accepts the electrons after they have passed through the electron transport chain and ATPase, the enzyme responsible for creating high-energy ATP molecules.
Likewise, what is a final electron acceptor? A final or terminal electron acceptor is a molecule that accepts electrons right at the end of a chain of electron transfer. In aerobic respiration, the terminal electron acceptor is oxygen, which combines with two protons and the gained electrons (from the electron transport chain) to form water.
Consequently, what is the final electron acceptor in aerobic respiration?
In aerobic organisms undergoing respiration, electrons are shuttled to an electron transport chain, and the final electron acceptor is Oxygen. Molecular Oxygen is a highly oxidizing agent and, therefore, is an excellent electron acceptor.
What is the ultimate electron acceptor molecule if oxygen is not available?
When no oxygen is present, the electron transport chain can't run because there is no oxygen to act as the final electron acceptor. This means that the ETC will not be accepting electrons from NADH as its source of power, so NAD+ will not be regenerated.
What does oxygen do in the electron transport chain?
The electron transport chain produces adenosine triphosphate, the main cellular energy. Oxygen acts as a final electron acceptor that helps move electrons down a chain that results in adenosine triphosphate production.What is the final product of the electron transport chain?
The end products of the electron transport chain are water and ATP. A number of intermediate compounds of the citric acid cycle can be diverted into the anabolism of other biochemical molecules, such as nonessential amino acids, sugars, and lipids.Is oxygen a good electron acceptor?
No, Oxygen is a very good acceptor. It's highly electronegative which makes the process highly efficient, and it's also abundant in the environment since its created by photosynthesis.What is the first electron acceptor in cellular respiration?
oxygen
What happens if oxygen is not available to accept electrons during aerobic respiration?
Aerobic respiration requires oxygen because oxygen is the final electron acceptor of the electron transport chain in the mitochondria. If there is no oxygen to accept electrons, then the electron transport chain stops working and the high energy molecules NADH+H and FADH2 cannot be converted back into NAD and FAD.Which stage of cellular respiration produces carbon dioxide?
Results of the Krebs Cycle After the second turn through the Krebs cycle, the original glucose molecule has been broken down completely. All six of its carbon atoms have combined with oxygen to form carbon dioxide. The energy from its chemical bonds has been stored in a total of 16 energy-carrier molecules.Where does the electron transport chain take place?
The electron transport chain occurs across the inner mitochondrial membrane. Its main function is to build an electrochemical gradient across the inner membrane using protons. The ETC pumps hydrogen ions out of the matrix of the mitochondria and into the intermembrane space.Why is oxygen the ultimate electron acceptor?
Explain why oxygen is the ultimate electron acceptor. The highly electronegative oxygen stabilizes the electrons by combining with two hydrogen ions to form water. Explain the overall concept of how ATP synthase uses the flow of hydrogen ions to produce ATP.What are the two electron acceptors in aerobic respiration?
Instead, molecules such as sulfate (SO42-), nitrate (NO3–), or sulfur (S) are used as electron acceptors. These molecules have a lower reduction potential than oxygen; thus, less energy is formed per molecule of glucose in anaerobic versus aerobic conditions.What are the end products of respiration?
The end product of cellular respiration is ATP. The waste products are carbon dioxide and water.How much NADH is produced in aerobic respiration?
2 carbon dioxide molecules. 1 ATP molecule (or an equivalent) 3 NADH and 1 FADH2, which carry energy to the last part of the aerobic respiration pathway.What are the two types of anaerobic respiration?
Anaerobic respiration occurs when the amount of oxygen available is too low to support the process of aerobic respiration. There are two main types of anaerobic respiration, alcoholic fermentation and lactic acid fermentation.What is produced at the end of cellular respiration?
Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.What are the two types of fermentation?
The two most common types of fermentation are (1) alcoholic fermentation and (2) lactic acid fermentation. (1) Alcoholic fermentation : the type of fermentation in which ethyl alcohol is the main end product . This is very common in yeast (unicellular fungus) and also seen in some bacteria.What is the role of oxygen in aerobic respiration?
Aerobic respiration uses oxygen to break down glucose, amino acids, and fatty acids and is the main way the body generates adenosine triphosphate (ATP), which supplies energy to the muscles.How much co2 is produced in anaerobic respiration?
Since there are two pyruvate molecules, it follows that two carbon dioxide molecules will also be produced during anaerobic respiration utilising the alcoholic fermentation pathway.Where is oxygen used in aerobic respiration?
mitochondria
