s Slide Show Window Help Lab 6 ReviewView Convert to Picture Shapes Text SmartAr

Question

s Slide Show Window Help Lab 6 ReviewView Convert to Picture Shapes Text SmartArt Box Take home quiz Six 1. Both cellular respiration and fermentation ordinarily begirn with what molecule? (2p 2. How do the overall equations for these processes indicate that fermentation is anaerobic and that cellular respiration is aerobic? ( 2p) 3. In Experimental Procedure: Yeast Fermentation, the gas bubble got larger. What gas was causing this increase in bubble size? (2p) change?(2p) (glucose, fructose, and sucrose), glucose would result in the 4. Which respirometer was the control and why there was no 5. Why might you hypothesize that, of the three sugars most activity during the fermentation experiment. (2p)

Explanation / Answer

1. Glucose molecule is the substrate for both cellular respiration and fermentation.

2. Overall reaction for aerobic respiration
C6H12O6 + 6O2 ------- 6CO2 + 6H2O + Energy

Overall reaction for fermentation
C6H12O6 -------- 2 CH3CH2OH + 2 CO2

3. CO2 is the one which responsible for increase in bubble size.

4. Beads was the control of respirometer. It does not react or release the gas.

5. Glucose is the most efficient sugar in fermentation because it directly relate to the carbon dioxide produced through fermentation. Because carbon dioxide is a by-product of ethanol fermentation. Glucose produce the highest rate of CO2 production compare to the sucrose and fructose.

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