What is the difference between lactic acid fermentation and alcoholic fermentation

This usually happens when there is not enough oxygen in the body, so lactic acid fermentation provides a way to get ATP without it. Begin typing your search term above and press enter to search. Press ESC to cancel. Skip to content Home Psychological disciplines What is the difference between alcohol fermentation and lactic acid fermentation?

Psychological disciplines. Ben Davis February 15, What is the difference between alcohol fermentation and lactic acid fermentation? What is alcoholic fermentation and lactic acid fermentation? What is the difference between lactic acid fermentation and alcohol fermentation quizlet? Which of the following best describes the difference between lactic acid and alcoholic fermentation? Why does alcoholic fermentation occur?

Lactate is a deprotonated form of lactic acid. The bacteria in the yogurt carry lactic acid fermentation as well as the red blood cells in the human body.

It also occurs in muscles when the tissues require energy and have low oxygen levels. For example, when anaerobic respiration takes time to get normal after a workout. The lactic acid produced by muscle cells is transported to the liver through the bloodstream.

In the process of alcoholic fermentation, the NADH molecule also donates its electrons to pyruvate which forms ethanol. This a two-step process. Firstly a carboxyl group is removed from pyruvate to release carbon dioxide, which produces a molecule called acetaldehyde. Secondly, NADH transforms its electrons to acetaldehyde to form ethanol. Yeast performs the alcoholic fermentation process which produces ethanol and then alcoholic drinks such as wine, beer, and whiskey. However, it is poisonous and toxic to yeast microorganisms just like humans.

Both types of fermentation are produced with the help of the NADH molecule and pyruvate. They are considered the types of anaerobic respiration. The main difference between these two is that they produce different items and are required for different needs.

The lactic acid fermentation produces lactate molecules whereas alcoholic fermentation produces ethyl or ethanol molecules including carbon dioxide. Lactic acid fermentation occurs in muscles and tissues whereas alcoholic fermentation, also known as ethanol fermentation is used in food industries.

We have mentioned the products below that are created by the process of fermentation of any type:. Log in to leave a comment. Lactic acid fermentation occurs in the muscle cells when they are run out of oxygen. Lactic acid fermentation refers to a metabolic process by which glucose is converted into the metabolite: lactate and cellular energy.

Generally, lactic acid fermentation is carried out by bacteria such as Lactobacillus a nd yeast. It occurs in two major steps: glycolysis and fermentation. Both glycolysis and lactic acid fermentation occur in the cytosol. Glycolysis is the first step of both lactic acid and alcoholic fermentation.

During glycolysis, hexose sugars are broken down into two pyruvate molecules. Pyruvate is composed of three carbon molecules. The process of lactic acid fermentation is shown in figure 1.

Figure 1: Lactic Acid Fermentation. Two types of lactic acid fermentations can occur in the cytosol. They are homolactic fermentation and heterolactic fermentation. In homolactic fermentation, two lactic acid molecules are generated by the action of the enzyme lactate dehydrogenase.

The chemical reaction for homolactic fermentation is shown below. In heterolactic fermentation, lactic acid, ethanol, and carbon dioxide are produced with the aid of both lactate dehydrogenase and pyruvate decarboxylase enzymes.

The chemical reaction of heterolactic fermentation is shown below. Muscle cells typically undergo aerobic respiration in the presence of oxygen. But when the oxygen supply is poor, they undergo lactic acid fermentation. This may occur due to extreme exercising or severe straining.