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Both alcohol and lactate fermentation enable cells to produce ATP without using oxygen; they are the anaerobic (lacking in oxygen) alternative to cellular respiration. This is because they are extensions of glycolysis that can generate ATP solely by substrate-level phosphorylation, specifically by regenerating NAD+ by transferring electrons from NADH to pyruvate or pyruvate derivatives. NAD+ can then be reused in glycolysis to oxidize sugar. Remember that glycolysis uses two net molecules of ATP by substrate-level phosphorylation.

Lactate fermentation, also known as lactic acid fermentation, occurs when NADH reduces pyruvate directly to form lactate as an end product, hence the name "lactate fermentation." More specifically, if one glucose molecule goes through glycolysis, 2 net ATP and 2 pyruvate molecules are produced and 2 NAD+ molecules are consumed. 2 NADH molecules and 2 H+ come and reduce the 2 pyruvate molecules, forming 2 lactate molecules and 2 NAD+. The 2 NAD+ molecules are then reused in glycolysis, enabling the cell to produce ATP even in the absence of oxygen. Lactate fermentation is used by some fungi and bacteria as well as in the dairy industry to produce yogurt in cheese. Another fun fact about lactate fermentation is that human muscle cells use lactate fermentation to make ATP when oxygen is scarce, such as during strenuous exercise. The resulting accumulation of lactate is partly what causes the muscle fatigue and pain that can result from exercise. But don't worry, the blood carries away the lactate to the liver where the lactate is converted back to pyruvate.

Alcohol fermentation occurs when pyruvate is first converted to acetaldehyde, a 2-carbon compound, through the release of carbon dioxide from the pyruvate. Then, NADH reduces the acetaldehyde to ethanol. A more detailed look shows us that just like lactate fermentation, glycolysis produces 2 ATP and 2 pyruvate from one glucose molecule. However, unlike lactate fermentation, each pyruvate molecule releases a carbon dioxide, resulting in 2 carbon dioxide molecules and 2 acetaldehyde molecules (acetaldehyde = pyruvate - carbon dioxide). Then, similar to lactate fermentation 2 NADH and 2 H+ reduce the 2 acetaldehyde molecules, forming 2 ethanol molecules and 2 NAD+ and regenerating the supply of NAD+ needed to continue glycolysis. Alcohol fermentation is often used in bacteria in anaerobic conditions as well as in yeast. Interestingly, the carbon dioxide that is released in alcohol fermentation generated by a baker's yeast is what allows the bread to rise!
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Distinguish between the products of the two types of fermentation discussed in this section?

There are two types of fermentation ususally studied in Biology: Alcoholic Fermentation and Lactic Acid Fermentation. Both types have the same reactants: Pyruvic acid and NADH, both of which are products of glycolysis. In alcoholic fermentation, the major products are alcohol and carbon dioxide. In lactic acid fermentation, the major product is lactic acid. For both types of fermentation, there is a side product: NAD+ which is recycled back to glycolysis so that small amounts of ATP can continue to be produced in the absence of oxygen. Im a beast


What are the products of alcholic fermentation?

Alcohol fermentation is done by yeast and some kinds of bacteria. These microorganisms convert sugars in ethyl alcohol and carbon dioxide. Alcoholic fermentation begins after glucose enters the cell. The glucose is broken down into pyruvic acid. This pyruvic acid is then converted to CO2, ethanol, and energy for the cell. Humans have long taken advantage of this process in making bread, beer, and wine. In these three product the same microorganism is used: the common yeast or Saccharomyces Cerevisae.


In what industry is alcoholic fermentation important?

The economic importance of alcoholic fermentation is the production of bread and alcoholic beverages. Alcoholic fermentation is the driving force of the beer industry and the baked good industries.


In what ways are alcoholic fermentation and lactic acid fermentation similar, and how do they differ from each other?

Alcoholic fermentation and lactic acid fermentation are both types of anaerobic processes that produce energy for cells. They are similar in that they both involve the breakdown of glucose to produce energy and end products. However, they differ in the final byproducts produced. Alcoholic fermentation produces ethanol and carbon dioxide, while lactic acid fermentation produces lactic acid.


What are the 2 types of fermentation and what do each produce?

The two types of fermentation are alcoholic fermentation and lactic acid fermentation. Alcoholic fermentation is also referred to as ethanol fermentation.

Related Questions

What is a fermentation type?

Alcoholic and Lactate fermentation


What types of fermentation are there?

Alchoholic fermentation and Lactic Acid fermentation


Does the buildup of lactic acid in muscle cells result in alcoholic fermentation?

No, lactate and ethanol are two possible products of glycolysis in anaerobic conditions. Some organisms produce lactate, some produce ethanol. You, for example, produce lactate. Yeast produces ethanol.


The two main types of fermintation are called?

lactate fermentation (build up of lactic acid) and alcoholic fermentation (produces ethanol)


What does fermentation release with out using energy?

Alcohol fermentation releases carbon dioxide. The products of Lactic acid fermenation are 2 lactate.


How do humans use alcoholic fermentation?

Humans use alcoholic fermentation to produce beverages, foods, industrial liquids and many other important products.


What energy processes without oxygen?

Anaerobic respiration. Now there are two types: Alcoholic fermentation produces alcohol and occurs in plants and microorganisms like yeast. And lactate fermentation which produces lactate and occurs in animals - it is the lactate (or lactic acid) that causes muscle cramps when you have been running and your muscles havn't been getting enough oxygen. -Note: This is commonly referred to as just fermentation.


What is the name enzymes that catalyzes the formation of lactate during lactate fermentation?

lactate dehydrogenase


Both lactic acid fermentation and alcoholic fermentation produce?

Both lactic acid fermentation and alcoholic fermentation produce ATP as a form of energy for the cells. Additionally, both processes also produce waste products, such as lactic acid in lactic acid fermentation and ethanol in alcoholic fermentation.


How lactate fermentation is similar to and different from ethanol fermentation?

Lactate fermentation and ethanol fermentation are both anaerobic processes that enable organisms to generate energy without oxygen by converting glucose into simpler compounds. They are similar in that both processes regenerate NAD+, allowing glycolysis to continue. However, they differ in their end products: lactate fermentation produces lactate, primarily in muscle cells and some microorganisms, while ethanol fermentation produces ethanol and carbon dioxide, primarily in yeast. Additionally, the pathways and enzymes involved in each fermentation type vary, reflecting the different organisms and conditions under which they occur.


What is different between the two types of fermentation?

There are two types of fermentation: Alcoholic Fermentation and Lactic Acid Fermentation. Both types have the same reactants: Pyruvic acid and NADH, both of which are products of glycolysis. In alcoholic fermentation, the major products are alcohol and carbon dioxide. In lactic acid fermentation, the major product is lactic acid. For both types of fermentation, there is a side product: NAD+ which is recycled back to glycolysis so that small amounts of ATP can continue to be produced in the absence of oxygen.


Distinguish between the products of the two types of fermentation discussed in this section?

There are two types of fermentation ususally studied in Biology: Alcoholic Fermentation and Lactic Acid Fermentation. Both types have the same reactants: Pyruvic acid and NADH, both of which are products of glycolysis. In alcoholic fermentation, the major products are alcohol and carbon dioxide. In lactic acid fermentation, the major product is lactic acid. For both types of fermentation, there is a side product: NAD+ which is recycled back to glycolysis so that small amounts of ATP can continue to be produced in the absence of oxygen. Im a beast