AP BIOLOGY

Detailed explanation-1: -Some bacteria produce lactic acid from pyruvic acid. This metabolic process is also seen in the muscle cells of animals. There can be inadequate oxygen supply for respiration in muscle cells during physical exercise.

Detailed explanation-2: -Fermentation process in the muscle cells of animals is called as lactic acid fermentation as the end product is lactic acid. In plant cells, fermentation results in the production of ethanol and carbon dioxide. Hence, it is also called as alcoholic fermentation.

Detailed explanation-3: -Lactic acid fermentation is a form of anaerobic respiration that occurs in some bacteria and animal cells in the absence of oxygen.

Detailed explanation-4: -Lactic acid fermentation is a type of anaerobic respiration (or fermentation) that breaks down sugars to produce energy in the form of ATP. It is called anaerobic because it occurs in the absence of oxygen.

Detailed explanation-5: -Lactic acid fermentation is the type of anaerobic respiration carried out by yogurt bacteria (Lactobacillus and others) and by your own muscle cells when you work them hard and fast.