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NAME __________________________ THE LIVING ENVIRONMENT AVERILL PARK HS Worksheet - Cell Respiration CELLULAR RESPIRATION Aerobic & Anaerobic 1. The function of cell respiration is to provide cells with __________________ 2. The most common food substance from which cells obtain energy is the monosaccharide known as ________________, which has the molecular formula _________________ 3. The difference between aerobic & anaerobic respiration is that aerobic respiration requires the presence of __________________ while anaerobic respiration does not. Also, MORE energy is produced from ____________________ respiration. 4. The cell’s usable form of energy is a chemical compound called adenosine triphosphate, abbreviated ___________. This compound is considered a HIGH-ENERGY compound because it enables our cells to efficiently carry out their life processes (functions). 5. In aerobic cell respiration, ______ molecules of ATP are produced for every 1 molecule of glucose oxidized (broken down). In anaerobic cell respiration, only ______ molecules of ATP are produced (per 1 molecule of glucose). 6. Glycolysis is the conversion of 1 molecule of glucose into 2 molecules of __________________ (aka pyruvic acid). Glycolysis occurs in the __________________ of cells and produces a net total of ______ ATP. For our purposes, we will examine 3 possible “fates” of pyruvate: BACTERIA – turn pyruvate into ______________ ______________during an anaerobic process known as lactic acid fermentation YEAST – usually turn pyruvate into ethyl alcohol (ethanol) AND _______ during an anaerobic process known as alcohol fermentation HUMANS – normally turn pyruvate into _______________ _______, which then enters the Krebs cycle & ETC (of the MITOCHONDRIA) to produce CO2 (waste), H2O & 34 ATP. Overall, these processes are referred to as aerobic respiration because __________________ is required in the process. --------------------------------------------------------------------------------------------------------------------Mitochondria = POWERHOUSE of the cell. WHY? Summary of Aerobic Cell Respiration