Find out when teenagers need to file a tax return and how to file a tax return for a teenager. 2011 Income Requirements for Teenagers: For the 2011 tax year, which is filed in 2012, teenagers claimed as a dependent on your return must file their own taxes if they meet any of the following conditions: 1  Earned income is greater than $5,800. 2  Unearned income is greater than $950. 3  Self-employment net earnings are greater than $400.
Fermentation is a metabolic process that converts sugar to acids, gases, or alcohol. It occurs in yeast and bacteria, and also in oxygen-starved muscle cells, as in the case of lactic acid fermentation.
Fermentation starts with pyruvate (the end product of glycolysis). Depending on the organism, pyruvate can either be fermented into ethanol (a fancy name for alcohol) or lactate (lactic acid). Fermentation releases CO 2, but does not make any ATP â all ATP during anaerobic respiration is produced during glycolysis.Since glycolysis produces 2 ATP, anaerobic respiration yields 2 ATP for every molecule of glucose. Both glycolysis and fermentation take place within the cytosol/cytoplasm of a cell.ermentation starts with pyruvate (the end product of glycolysis). Depending on the organism, pyruvate can either be fermented into ethanol (a fancy name for alcohol) or lactate (lactic acid). Fermentation releases CO 2, but does not make any ATP â all ATP during anaerobic respiration is produced during glycolysis.