HomeworkLib
Question

Which of the following will be in a reduced state in mitochondria that have been poisoned...

Which of the following will be in a reduced state in mitochondria that have been poisoned by cyanide?
A. NADH-Q oxidoreductase
B. coenzyme Q
C. cytochrome c
D. cytochrome a
E. All of the answers are correct.

science   biology   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Cyanide is a naturally occurring phytochemical, that adversely effects Mitochondria, the power house of the cell.

Mitochondria performs cellular respiration in all eukaryotes. The final step of eukaryotic aerobic cellular respiration is Oxidative phosphorylation, in which ATP, the energy currency will be formed.

Cyanide binds to "cytochrome a" irreversibly which is present in complex IV of Electron Transportation Chain (ETS). This poisionus action prevents the cell to utilise Oxygen and finally causes death.

Ans: D.

0 0
Add a comment
Know the answer?
Add Answer to:
Which of the following will be in a reduced state in mitochondria that have been poisoned...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Please explain why as well. 4. On average, how many ATP molecules are synthesized per NADH?...

    Please explain why as well. 4. On average, how many ATP molecules are synthesized per NADH? A. 0 B. 1 C. 2 D. 3 E. 4 5. The FADH2 that is produced donates its electrons directly to A. Complex I B. Complex III C. Complex IV D. Coenzyme Q E. Cytochrome C F. O2 6. In the Binding Change Mechanism the 3 conformational states that occur in the F1 subunit of ATP synthase depend on A. interaction with b subunits...

  • pLEASE HELP BIOCHEM 2a Predict all of the following that are consequences of withdrawing oxygen given...

    pLEASE HELP BIOCHEM 2a Predict all of the following that are consequences of withdrawing oxygen given constant supply of NADH. may have more than one answer a. Pool of coenzyme Q becomes fully reduced. b. recycling of NAD+ continues indefinitely c. rate of NADH oxidation becomes zero owing to a lack of oxidized coenzyme Q(Q) to accept electrons d.pool of cytochrome C becomes fully oxidized (Cyt Cox). 2.b Choose all the following that are characteristic of Complex 3. a. recycles...

  • Q1. Which of the following apply to cellular respiration? (Select ALL that apply.) A. Cellular respiration...

    Q1. Which of the following apply to cellular respiration? (Select ALL that apply.) A. Cellular respiration uses sunlight to convert low energy carbon dioxide into high energy sugar molecules. B. Cellular respiration breaks down high energy sugars thereby releasing energy for the cell to do work. C. Cellular respiration stores the energy from sugar in the form of ATP. D. Cellular respiration consumes O2 and releases CO2. Q2. Why is oxygen required for life? Select ONE option: A. It facilitates...

  • All of the following are membrane bound EXCEPT: cytochrome ala, b. Fe-S centers. c. cytochrome c....

    All of the following are membrane bound EXCEPT: cytochrome ala, b. Fe-S centers. c. cytochrome c. cytochrome c. coenzyme Q. so é o do 25. Complex I and Complex II produce a common product which is: a. NAD FAD. c. reduced coenzyme Q. reduced cytc. reduced O

  • Which complex in the electron transport chain does not contribute to the proton gradient across the...

    Which complex in the electron transport chain does not contribute to the proton gradient across the mitochondrial membrane? A. Complex I B. Complex IV C. Complex II D. Complex III Which statement regarding the mitochondrial electron transport chain and oxidative phosphorylation is true? A. Ubiquinone and the F zero subunit of ATP synthase are peripheral membrane proteins. B. Complexes I, II, III, and IV all are proton pumps. C. The final electron acceptor is water. D. Complex II is considered...

  • Calculate the standard free energy change for each of the following steps. Which steps have enough...

    Calculate the standard free energy change for each of the following steps. Which steps have enough free energy to synthesize ATP? I. NADH passing its electrons to NADH dehydrogenase. 11. ŅADH dehydrogenase passing its electrons to Q III. Q passing its electrons to cvtochrome b, then cyto b to cyto cl (cytochrome oxidoreductase IV. Cyto cl passing its electrons to cyto c V. Cyto c passing its electrons to cyto a, then cyto a to cyto a3 VI. Cyto a3...

  • Complete the given reaction which is part of the electron transport chain. The abbreviation Q represents...

    Complete the given reaction which is part of the electron transport chain. The abbreviation Q represents coenzyme Q. Use this abbreviation for the product. NADH + H+ + + The reactant that is reduced is In complex III, electrons are transferred from coenzyme Q to cytochrome c, which contains iron. QH, + 2 cyt c(Fe3+) →Q + 2 cyt c(Fe") + 2 H+ Determine the oxidation number for iron on the right side of the reaction arrow. X =

  • 12. Which enzyme catalyzes the reaction shown? Oo 9% a. succinyl-CoA synthetase b. succinate dehydrogenase c....

    12. Which enzyme catalyzes the reaction shown? Oo 9% a. succinyl-CoA synthetase b. succinate dehydrogenase c. pyruvate dehydrogenase d、a-ketoglutarate dehydrogenase 13. Which of the reactions of the citric acid cycle requires FAD as a coenzyme? a. the conversion of isocitrate to a-ketoglutarate b. the conversion of citrate to isocitrate c. the conversion of succinate to fumarate d. the conversion of malate to oxaloacetate 14. Another name for Complex I in the electron transport chain is a. cytochrome c oxidase. b....

  • all pls molecule contains glycerol? 25. The structural formulas of the four lipids in Figure 11.1....

    all pls molecule contains glycerol? 25. The structural formulas of the four lipids in Figure 11.1. Which GURE TL Membrane lpids R,and R represent hydrocarbon chain c-o 먼 HO OH A) A, C B) C, D c) D D) A, D E) B 26. The degree of membrane fluidity depends on A) the percentage of lipids that contain choline. B) the percentage of glycolipids. C) the percentage of free fatty acids. D) the percentage of unsaturated fatty acids. E) None...

  • does it work now 7. Predict the relative oxidation state (oxidized or reduced) of Q and...

    does it work now 7. Predict the relative oxidation state (oxidized or reduced) of Q and heme c, c1, Cua, and Cup for mitochondria treated with rotenone or antimycin A. Rotenone binds to Fe-S clusters in Complex I preventing electron transfer to Q. Antimycin A binds to one of the Q sites in Complex III preventing electron transfer from heme by to Q. Assume that electrons are continuously flowing from NADH & FADH2. Rotenone Antimycin A heme c1 Q (in...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT