Fermentation (1)

Biology

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Fermentation (1)

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Fermentation

The incomplete breakdown of glucose in conditions of limited oxygen or without oxygen

Types of fermentation

Alcohol fermentation and lactic acid fermentation

Alcohol fermentation

The incomplete breakdown of glucose to ethanol, carbon dioxide and energy

Alcohol fermentation in yeast

Glucose is converted into ethanol, carbon dioxide, and energy. Ethanol produced us used to make wine. Meanwhile, the released of carbon dioxide makes bread dough rise

Alcohol fermentation in plants

Paddy plants that grow in waterlogged areas create the environment to become anaerobic conditions that cause the paddy plant to carry out alcohol fermentation

Adaptation of paddy plants

Paddy plants have a high resistance to ethanol and rice plants produce the enzyme alcohol dehydrogenase that can break down ethanol molecules into non -toxic carbon dioxide

Lactic acid fermentation

The breakdown of glucose into lactic acid and energy. This process occurs in the lactobacillus dan sel otot manusia

Lactic acid fermentation in lactobacillus

Lactobacillus is used to produce yogurt. These bacteria act on lactose (the sugar in milk) and convert it into lactic acid. Lactic acid will cause the milk proteins to coagulate and produce yogurt

Fermentation of lactic acid in human muscles cells

Carried out by muscle cells that carry out strenuous activities that cause muscle cells to have oxygen debt. Muscle cells convert glucose into lactic acid

Oxygen debt

Oxygen debt can be recovered when a person is at rest and the intake of excess oxygen is used to oxidize lactic acid into carbon dioxide, water, and energy

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