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The correct sequence of electron carrier...

The correct sequence of electron carriers (Cytochromes) in Respiratory electron transport system is
a,a3,b,c and c1
b,c,c1 and a3
b,c1,c,a and a3
a3,a,c,c1 and b

A

`a, a_(3), b, c and c_(1)`

B

`b, c, c_(1), a and a_(3)`

C

`b, c_(1), c, a and a_(3)`

D

`a_(3), a, c, c_(1) and b`

Text Solution

AI Generated Solution

The correct Answer is:
To determine the correct sequence of electron carriers (cytochromes) in the respiratory electron transport system, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Electron Transport Chain (ETC)**: - The electron transport chain is a series of complexes and cytochromes located in the inner mitochondrial membrane. It plays a crucial role in cellular respiration by transferring electrons from NADH and FADH2 to oxygen. 2. **Identifying the Cytochromes**: - The main cytochromes involved in the electron transport chain include: - Cytochrome b - Cytochrome c1 - Cytochrome c - Cytochrome a - Cytochrome a3 3. **Sequence of Electron Transfer**: - The electrons are transferred in a specific order: - Electrons from NADH are first transferred to **NADH dehydrogenase**. - From there, they are passed to **ubiquinone** (not a cytochrome but important for the transfer). - The first cytochrome to receive electrons is **cytochrome b**. - The electrons then move to **cytochrome c1**. - After cytochrome c1, they are transferred to **cytochrome c**, which acts as a mobile carrier. - The next transfer is to **cytochrome a**. - Finally, the electrons are passed to **cytochrome a3**, which is the last electron carrier before the electrons are used to reduce oxygen to water. 4. **Correct Sequence**: - Based on the above transfers, the correct sequence of cytochromes is: - **b → c1 → c → a → a3** 5. **Choosing the Correct Option**: - Looking at the provided options: - a, a3, b, c, c1 - b, c, c1, a3 - b, c1, c, a, a3 - a3, a, c, c1, b - The sequence **b, c1, c, a, a3** matches our derived sequence. ### Final Answer: - The correct sequence of electron carriers in the respiratory electron transport system is **b, c1, c, a, a3**. ---
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AAKASH SERIES-RESPIRATION IN PLANTS-Exercise-I (Aerobic respiration (ETS , BS , Amphibolic)
  1. Number of ATP generated in ETS on oxidation of reduced Co-enzymes prod...

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  2. Number of ATP molecules formed through oxidative decarboxylation react...

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  3. The correct sequence of electron carriers (Cytochromes) in Respiratory...

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  4. ATP is a

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  5. Non-mitochondrial aerobic respiration occurs in

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  6. The ATP output of aerobic respiration is more than that of anaerobic r...

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  7. The number of oxidations, substrate level phosphorylations respectivel...

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  8. Pick out the correct statement from following

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  9. Aerobic respiration is more advantageous because it

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  10. Hydrogen joins oxygen at the end of Glycolysis Electron transport s...

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  11. Main source of ATP in a cell is by oxidative phosphorylation is

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  12. Krebs cycle produces

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  13. Oxidative phosphorylation occurs during electron transfer in

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  14. Which of the following is phosphorylating unit?

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  15. In cellular respiration, oxygen is used as the final receptor of Nit...

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  16. During respiration, pyruvic acid is

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  17. Chemiosmotic hypothesis is based on

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  18. One molecule of glucose requires 2 ATP to get phosphorylated to form F...

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  19. Total number of ATP produced when one molecule of G3P, participates in...

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  20. In which of the following steps NADH can be produced? Glucose → fr...

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