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NAD and NADH function as coenzymes, meaning that they help to catalyze the breaking down of complex sugar molecules into various intermediate stages during the Krebs cycle. NAD + readily gains electrons from these intermediate sugar molecules and is reduced to NADH2. The main goal of the Krebs cycle is to release energy from glucose (sugar) and oxygen and release carbon dioxide and water. NADH is important because by breaking electrons off of the big complex sugar molecules, it allows CO2 to be released and also gains energy from those electrons. NADH molecules then carry those electrons into the electron transport chain where NADH is reoxidized to NAD+ releasing that energy.
NAD+ is important in anaerobic respiration to act as an electron carrier. During anaerobic respiration, NAD+ accepts electrons from the breakdown of glucose to help generate ATP in the absence of oxygen. This process allows cells to continue producing energy without relying on oxygen as the final electron acceptor.
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What terminal electron acceptors are used in anaerobic cellular respiration?
anaerobic cellular respiration has 3 different stages, and their final electron acceptors are: pyruvate oxidation- NAD+ Krebs cycle- NAD+, FAD+ electron transport chain- Oxygen
Which electron carrier is used in the redox reactions in a cellular respiration?
NAD plus
Which stages of cellular respiration occur in organisms that go through anaerobic respiration?
In organisms that undergo anaerobic respiration, glycolysis occurs, which does not require oxygen. After glycolysis, fermentation takes place to regenerate NAD+ for glycolysis to continue in the absence of oxygen. The citric acid cycle and oxidative phosphorylation, which require oxygen, do not occur in anaerobic respiration.
Which carrier is used in the redox reactions in cellular respiration?
NAD plus
What kind of respiration produces lactic acid?
Anaerobic respiration produces lactic acid. This type of respiration occurs when oxygen is not readily available, leading to the conversion of pyruvate to lactic acid to regenerate NAD+ for glycolysis to continue.
What terminal electron acceptors are used in anaerobic cellular respiration?
anaerobic cellular respiration has 3 different stages, and their final electron acceptors are: pyruvate oxidation- NAD+ Krebs cycle- NAD+, FAD+ electron transport chain- Oxygen
Which electron carrier is used in the redox reactions in a cellular respiration?
NAD plus
Which stages of cellular respiration occur in organisms that go through anaerobic respiration?
In organisms that undergo anaerobic respiration, glycolysis occurs, which does not require oxygen. After glycolysis, fermentation takes place to regenerate NAD+ for glycolysis to continue in the absence of oxygen. The citric acid cycle and oxidative phosphorylation, which require oxygen, do not occur in anaerobic respiration.
Which carrier is used in the redox reactions in cellular respiration?
NAD plus
What kind of respiration produces lactic acid?
Anaerobic respiration produces lactic acid. This type of respiration occurs when oxygen is not readily available, leading to the conversion of pyruvate to lactic acid to regenerate NAD+ for glycolysis to continue.
Is NAD a form of lactic acid?
No, NAD (nicotinamide adenine dinucleotide) is a coenzyme involved in cellular respiration while lactic acid is a byproduct of anaerobic metabolism in muscles. They are distinct compounds with different functions in the body.
Is pyruvic acid a product of both aerobic and anerobic respiration?
Yes, pyruvic acid is a product of both aerobic and anaerobic respiration. In aerobic respiration, pyruvic acid is further broken down in the mitochondria, while in anaerobic respiration it is converted into either lactic acid or ethanol to regenerate NAD+ for glycolysis to continue.
What happens after glycolosis if there is no oxygen available?
If there is no oxygen available after glycolysis, anaerobic respiration occurs. This process involves the conversion of pyruvate into lactic acid (in animals) or ethanol (in yeast and some bacteria) to regenerate NAD+ and continue ATP production. Anaerobic respiration is less efficient than aerobic respiration in terms of ATP production.
Does the recycling of ATP ensure the continuation of glycolysis under anaerobic conditions?
Yes, the recycling of ATP ensures the continuation of glycolysis under anaerobic conditions by providing the necessary energy for the reactions to proceed. This is particularly important in anaerobic conditions where the final products of glycolysis cannot be further metabolized through aerobic respiration for additional ATP production.
Bacteria nad fungi can respire anaerobically which usefull in converting sugar into alcohol Do you think anaerobic respiration in bacteria and fungi is a blessing or curse?
bactirea and fungi is blessing
What are the electrons carriers in cellular respiration?
NAD+, (or nicotinamide adenine dinucleotide)
What is the recycling of NAD under anaerobic conditions?
Under anaerobic conditions, NAD can be recycled through fermentation processes that regenerate NAD+ from NADH. This allows cells to continue glycolysis and produce ATP in the absence of oxygen. Fermentation pathways, such as lactic acid fermentation or alcohol fermentation, are utilized to regenerate NAD for these anaerobic processes.
