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Cellular Respiration Ex 8. Cellular respiration . B reak bonds in nutrients to form ATP Where does it occur In eukaryotic cells? Mitochondria. Overall reaction is aerobic . Glucose + Oxygen Carbon dioxide + Water Net 36 ATP. Fermentation . - PowerPoint PPT Presentation
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Cellular Respiration Ex 8
Cellular respiration
• Break bonds in nutrients to form ATP • Where does it occurIn eukaryotic cells?
Mitochondria
Overall reaction is aerobic
Glucose + Oxygen Carbon dioxide + WaterNet 36 ATP
Fermentation
• An alternative to cellular respiration in some cells, produces 2 ATP/glucose only
• Glucose CO2 + ethanol + 2 ATP
CO2 production as a measure of fermentation
Assignment 7Hypothesis: Fermentation of glucose, sucrose, and starch by yeast occurs at the same rate
Yeast producing CO2
See handout
CELLULAR RESPIRATION
Assignment 2:Hypotheses: Living organisms do not produce CO2
Experiment 1 air exhaled from lungs vs room air
CO2 production as a measure of cellular respiration
Colorimetric test
Bromthymol blue + CO2 yellow color
Cellular respirationGlucose + Oxygen Carbon dioxide + water Net 36 ATP
What is the dependent variable?
Experiment 2Hypotheses: Living organisms do not produce CO2
Plant vs animal
What is the independent variable?
Assignment 3: Hypothesis: Carbon dioxide does not accumulate in
photosynthesizing cells
Plants in light vs dark