Some of aerobic respiration occurs in the MITOCHONDRIA (plural of mitochondrion) Steps of aerobic respiration Glycolysis: First step breaks down glucose into pyruvate pyruvate to make electrons for the last step Kreb’s Cycle (Citric Acid Cycle): Uses Electron transport chain: Third step uses the electrons to make a lot of ATP Glycolysis (anaerobic) Krebs Cycle (aerobic) Electron Transport Chain (aerobic) Anaerobic respiration (requires no oxygen) Also called fermentation 2 types: alcoholic fermentation and lactic acid fermentation Both begin with glycolysis No Cycle Kreb’s o o or electron transport chain Carried out by your muscles when you’re exercising hard (need ATP) Alcoholic'fermentation ' and can’t get oxygen into you fast Pyruvate ethyl alcohol + carbon dioxide  enough (can’t do aerobic respiration) Carried out by yeast and some Causes muscle cramps and soreness bacteria Used in brewing beer, making wine, and baking bread and cakes Pyruvate Lactic'acid'fermentation'  lactic acid PHOTOSYNTHESIS CELLULAR RESPIRATION
Some of aerobic respiration occurs in the MITOCHONDRIA (plural of mitochondrion) Steps of aerobic respiration Glycolysis: First step breaks down glucose into pyruvate Kreb’s Cycle (Citric Acid Cycle): Uses pyruvate to make electrons for the last step Electron transport chain: Third step uses the electrons to make a lot of ATP Glycolysis (anaerobic) Krebs Cycle (aerobic) Electron Transport Chain (aerobic) Anaerobic respiration (requires no oxygen) Also called fermentation 2 types: alcoholic fermentation and lactic acid fermentation o Both begin with glycolysis o No Kreb’s Cycle or electron transport chain Alcoholic'fermentation ' Pyruvate  ethyl alcohol + carbon dioxide Carried out by yeast and some bacteria Used in brewing beer, making wine, and baking bread and cakes Lactic'acid'fermentation' Pyruvate  lactic acid Carried out by your muscles when you’re exercising hard (need ATP) and can’t get oxygen into you fast enough (can’t do aerobic respiration) Causes muscle cramps and soreness PHOTOSYNTHESIS CELLULAR RESPIRATION