2. If in an experiment, protons could somehow rapidly be removed from the inner membrane space, how would this affect synthesis by electron transport?
3. If the inner mitochondrial membrane allowed protons to move freely back and forth across it, there would be no ATP synthesis in electron transport. Explain why.
4.Why does electron transport stop if oxygen is not available?
- 2 ATP difference is due to Eukaryotic glycolysis occurs in cytoplasm but ETC occurs in the mitchondrial matrix. Any NADH produced in glycolysis can only pass its electrons thru the mitchondrial membrane allowing the production of 2 ATP per NADH instead of 3.© BrainMass Inc. brainmass.com October 25, 2018, 3:56 am ad1c9bdddf
For 4 and 5, you are on the right track.
For 4, that is the answer exactly -- if no O2 available then the ETC backs up with electrons being held by the ETC proteins/enzymes.
For 5, the difference is that the Krebs and ETC take place out in the cytoplasm or along the cell membrane, while in eukaryotes it takes place inside the mitochondria.
1. CO2 that we respire was originally part of biological molecules that have been oxidized. Explain this observation in 2 or 3 sentences to someone who ...
The solution discusses the various questions based on cellular respiration.
Discussion of metabolism questions
1. If your goal is to burn fat, you are better off exercising at lower intensity for longer periods of time, as opposed to short burts of more intense exercise. Looking at Figure 9.27(see attachment) explain why this is true on a cellular level.
For number 3 can you check my reasoning here..
3. In step 6 of citric acid cycle, succinate is converted to fumarate. The reaction is coupled to the conversion of FAD to FADH-2 Would succinate or fumarate have more C-H bonds? Is succinate being oxidized or reduced? Why is FAD being used here instead of NAD?