Using the data of Figure 3.10, predict the sequence of electron carriers in the membrane of an organism growing aerobically that has the following electron carriers: ubiquinone, cytochrome aa3, cytochrome b, NADH, cytochrome c, FAD.
To predict:
The sequence of electron carriers such as ubiquinone, cytochrome aa3, cytochrome b, NADH, cytochrome c, and FAD in the membrane of an organism growing aerobically by using the data of Figure 3.10 in the text book.
Concept introduction:
An oxidation is a process in which electrons are removed from a substance whereas, in reduction process, electrons are added to the substance. The combination of these processes is termed as redox (oxidation-reduction) reaction.
Explanation of Solution
The electron transport chain consists of carriers of protons and electrons, which facilitate their transfer from a primary electron donor to a molecule that acts as the terminal acceptor.
The differences in the redox reaction can be identified by comparing the standard reduction potential (E0’). If E0’ of the substance is more negative than the other, it is identified that it undergoes reduction and if E0’ of the substance is more positive, that means it accepts electron and undergoes an oxidation process.
The sequence of electron carriers in the membrane of an organism growing aerobically and the following electron carriers produced as follows:
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Chapter 3 Solutions
Brock Biology of Microorganisms (15th Edition)
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- If the order for the electron transport chain starting from NADH to Oxygen is this: NADH-->Flavin mononucleotide (FMN)--> Coenzyme Q (CoQ) --> Cytochrome b (Cyt b)--> Cytochrome c (Cyt C)--> Cytochrome a3 (cyt a3) --> Oxygen (O2) Then, what is the order for the electron transport chain starting with FADH2 to oxygen (O2)?arrow_forward5. a) The cell creates molecules of NADH and FADH2to use in the electron transport chain as they are electron carrier molecules. The electron transfers from these moleculesdrives the movement of what molecule across the mitochondrial membrane?b) What is chemiosmosis?c) How does the cell use chemiosmosis to drive overcome the thermodynamic barrier of bringing phosphates close togehter to create ATP?d) What steps of oxidative phosphorylation are in the cytosol and which are in the mitochondria?e) Cellular respiration can be controlled at the post-translational level. What does this mean, using GLUT as an example? Why is post-translational control of GLUT evolutionarilyadaptive over transcriptional control?f) How does establishment of equillibria of various molecules control metabolic reactions? What are three ways high ATP in the cell control cellular respiration?g) Why are the enzymes controlling the initial steps of various biochemical pathways are targeted by allosteric control?arrow_forwardFor each statement below, write whether the event occurs in GLYCOLYSIS, KREBS CYCLE, or ELECTRON TRANSPORT CHAIN. 1. Oxygen is the final acceptor of electrons 2. Occurs outside the mitochondria 3. Produces FADH2 4. Begins with glucose 5. Occurs in the mitochondrial matrix 6. Ends with pyruvic acid 7. Where chemiosmosis occurs 8 .Forms water 9.Occurs in the inner membrane of the mitochondria 10. Produces the most ATParrow_forward
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