Question

Would you expect the concentration of hydrogen ions in the matrix of rotenone-poisoned mitochondria to increase,...

Would you expect the concentration of hydrogen ions in the matrix of rotenone-poisoned mitochondria to increase, decrease or remain about the same relative to mitochondria that are not poisoned with rotenone?


increase
decrease
remain about the same
Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1
  • The mechanism of oxidative phosphorylation occurs in mitochondria of live cells.
  • Electrons are transported across various components of electron transport chain (ETC), resulting in series of oxidation-reduction reactions within the membrane bound complexes in mitochondria (complex I, II, III, IV).
  • NADH and FADH2 are electron donors, their oxidation creates high concentration energy from electrons.
  • This energy is used to pump proton from matrix to inter membrane space. Flow of protons creates and electrochemical gradient, which is used to generate ATP.
  • Rotenone inhibits electron flow at complex I.
  • This will prevent energy creation to transfer protons from matrix to mitochondrial membrane.
  • Thus, concentration of protons or hydrogen ions will increase in matrix.

Answer: increase

0 0
Know the answer?
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
Similar Questions
Which of the following would increase in concentration in the matrix in the presence of an...
Which of the following would increase in concentration in the matrix in the presence of an et chain blocker? NAD+ NADH ATP Oxaloacetate None
1) a. Why is actin treadmilling important for cell migration? b. If you increase the concentration...
1) a. Why is actin treadmilling important for cell migration? b. If you increase the concentration of extracellular matrix substrate on your tissue culture-treated plates, do you expect the density of focal adhesion in the cells to increase, decrease, or not be affected?
Consider the S~Q relation is nonlinear, S = kQm. Would you expect an increase or decrease...
Consider the S~Q relation is nonlinear, S = kQm. Would you expect an increase or decrease or no change in the peak flow of the outflow hydrograph with an increase in the value of m, keeping k the same?
If hospitals begin to affiliate within regions, would you expect that “unnecessary duplication of facilities” would...
If hospitals begin to affiliate within regions, would you expect that “unnecessary duplication of facilities” would increase, decrease or stay the same? Why is that? As you think about your answer, consider why this duplication exists in the first place.
In cell structure and function you learned that calcium ions (Ca2+) are stored in the smooth...
In cell structure and function you learned that calcium ions (Ca2+) are stored in the smooth ER. Some signaling pathways in the cell cause the ER to release the calcium ions into the cytoplasm, which causes the calcium ion concentration in the cytoplasm to increase and at the same time the calcium ion concentration in the ER to decrease. Once the signaling pathway is turned off, the calcium is returned to the ER so that the concentration of calcium in...
Forskolin is a drug that activates adenylyl cyclase. You would expect this drug to: a. increase...
Forskolin is a drug that activates adenylyl cyclase. You would expect this drug to: a. increase heart rate b. decrease heart rate c. increase the force of cardiomyocyte contraction d. decrease the rate at which the pacemaker potential depolarizes the cell e. a and c are correct.
Using what you know about the Phillips curve, determine whether the following quantities will increase, decrease,...
Using what you know about the Phillips curve, determine whether the following quantities will increase, decrease, or remain the same.      a. Unemployment in the short run after an increase in inflation:     (Click to select)   Remain the same   Increase   Decrease  .      b. Unemployment in the long run after an increase in inflation:     (Click to select)   Increase   Decrease   Remain the same  .      c. Inflation in the short run after a decrease in unemployment:     (Click to select)   Decrease   Remain the same   Increase  .      d. Inflation in the long run after a...
What general effects would you expect the following changes to have on the rate of an...
What general effects would you expect the following changes to have on the rate of an enzyme-catalyzed reaction for an enzyme that has its maximum activity at body temperature (about37∘C )? Adding an oxidizing agent, such as hydrogen peroxide Adding an oxidizing agent, such as hydrogen peroxide The rate of the reaction increases. The rate of the reaction decreases or even becomes zero. The rate of the reaction remains constant. The rate of the reaction can increase or decrease depending...
For a Reaction that has positive activation energy, would you expect increasing the temperature to increase...
For a Reaction that has positive activation energy, would you expect increasing the temperature to increase or decrease the reaction rate? Please explain your answer in using "rate=K[A]^x[B]^y" and "K=Ae*-Ea/rT"
If the current unemployment rate is 3.9%, would one expect the rate of inflation to increase...
If the current unemployment rate is 3.9%, would one expect the rate of inflation to increase or decrease? Explain your answer. Now you face a wonderful decision. Imagine that you just won a lottery jackpot of $100,000. If you expect inflation to accelerate, should you buy that home you’ve been thinking of now? What would you decide if the rate of inflation is negative
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT