Biochemistry

During anaerobic decomposition of carbohydrates, glucose is the main energy substrate. Its anaerobic transformation can be done in different ways: glycolysis or glycogenolysis (if the process begins with glycogen) or alcoholic fermentation with the formation of lactic acid or ethanol and CO 2 respectively. As a rule, anaerobic decomposition products (for example, lactic acid) undergoes aerobic decomposition. Glucose ф ADP Glucose-6-phosphate л ч ATP Dioxyaceton phosphate ® 1 Fructose-6-phosphate ® ADP Fructose-1,6-diphosphate ® Л ____ x 1 — > Glyceraldehyde-3-phosphate (2 mol) NAD ’ + k- NAD*+ H,PO 4 ( 2 mol) © NADH 2 -И NADH 2 (2 mol) | 1,3-diphosphoglycerol acid (2 mol) ф ADP ADP (2 mol) 3-phosphoglycerol acid (2 mol) ® и 2-phosphoglycerol acid (2 mol) ® нрЛ'Ь H 3 O(2 mol) Phosphoenolpyruvate (2 mol) л u- ADP (2 mol) (Ta £ — — - — Pyruvic acid (2 mol) — Pyruvate (fh NADH 2 <4k"NADH 2 (2 mol) + NAD-^ v ” NAD + (2 mol) Lactic acid (2 mol) — Lactate 4- ATP + ATP (2 mol) 4- ATP (2 mol) Figure 11.4 - Glycolysis 220