Cellular Respiration Ex 8
Cellular respiration Break 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 An alternative to cellular respiration in some cells, produces 2 ATP/glucose only Glucose CO 2 + ethanol + 2 ATP
CO 2 production as a measure of fermentation Assignment 7 Hypothesis: 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 CO 2 Experiment 1 air exhaled from lungs vs room air
CO 2 production as a measure of cellular respiration Colorimetric test Bromthymol blue + CO 2 yellow color Cellular respiration Glucose + Oxygen Carbon dioxide + waterNet 36 ATP What is the dependent variable?
Experiment 2 Hypotheses: Living organisms do not produce CO 2 Plant vs animal What is the independent variable?
Assignment 3: Hypothesis: Carbon dioxide does not accumulate in photosynthesizing cells Plants in light vs dark