Respiration in Plants

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What is the role of oxygen in the electron transport system?

To act as the final hydrogen acceptor (correct)

To synthesize ATP

To initiate the electron transport chain

To generate proton gradient

What is the energy source utilized in oxidative phosphorylation?

Proton gradient energy

Electrochemical energy

Oxidation-reduction energy (correct)

Light energy

During oxidative phosphorylation, how many ATP molecules are produced per electron pair?

2

3 (correct)

1

4

What is the direction of proton movement during ATP synthesis?

From the intermembrane space to the matrix Signup and view all the answers

What is the location of the electron transport chain?

Inner mitochondrial membrane Signup and view all the answers

What is the purpose of the proton gradient in oxidative phosphorylation?

To generate ATP Signup and view all the answers

Where is the electron transport system located in the mitochondria?

Inner membrane Signup and view all the answers

What is the function of Complex V in the electron transport system?

Synthesize ATP Signup and view all the answers

What is the role of FMN in Complex I?

To accept electrons from NADH Signup and view all the answers

What is the function of UQ in the electron transport system?

To transport electrons from one complex to another Signup and view all the answers

What is the result of the electron transport system in the mitochondrial inner membrane?

Generation of ATP Signup and view all the answers

What is the source of the two electrons donated to Complex I?

NADH Signup and view all the answers

What is the primary role of NADH and FADH2 in the electron transport system?

To act as electron carriers and donate electrons to an electron acceptor Signup and view all the answers

What is the net ATP yield from the complete breakdown of one glucose molecule?

4 ATP Signup and view all the answers

What is the byproduct of the reaction catalyzed by citrate synthase?

Citrate Signup and view all the answers

What is the purpose of the electron transport system in the mitochondrial membrane?

To generate a proton gradient Signup and view all the answers

What is the role of co-factors in the electron transport system?

To enhance the activity of enzymes as catalysts Signup and view all the answers

What is the result of the transfer of electrons from NADH and FADH2 to an electron acceptor?

The creation of a proton gradient Signup and view all the answers

Which electron carrier is responsible for the transfer of electrons from FADH2 to Coenzyme Q?

Complex II Signup and view all the answers

During oxidative phosphorylation, what is the primary function of the proton gradient generated across the inner mitochondrial membrane?

To synthesize ATP through chemiosmosis Signup and view all the answers

What is the net result of the electron transport system in terms of ATP production?

1.5 ATP produced per NADH and 1.5 ATP produced per FADH2 Signup and view all the answers

Which coenzyme plays a critical role in the transfer of electrons from NADH to Coenzyme Q?

FMN Signup and view all the answers

What is the primary function of Complex V in the electron transport chain?

To synthesize ATP through chemiosmosis Signup and view all the answers

What is the primary source of energy for the electron transport chain in the mitochondrial inner membrane?

Energy from the oxidation-reduction reactions of NADH and FADH2 Signup and view all the answers

What is the primary function of the electron transport chain in cellular respiration?

Establish a proton gradient to drive ATP synthesis Signup and view all the answers

What is the entry point of acetyl-CoA in the Krebs cycle?

Citrate synthase Signup and view all the answers

What is the role of NADH in the electron transport chain?

Transfers electrons to the electron transport chain Signup and view all the answers

What is the net ATP yield from glycolysis?

2 ATP Signup and view all the answers

What is the function of coenzyme Q in the electron transport chain?

Transfers electrons from NADH to Complex III Signup and view all the answers

What is the primary function of the electron transport system in the mitochondrial membrane?

Establish a proton gradient to drive ATP synthesis Signup and view all the answers

What is the role of cytochrome c in the electron transport chain?

To act as a mobile carrier for transfer of electrons between complex III and IV Signup and view all the answers

What is the result of the interaction between UQH2 and Complex III?

Pumping of 4 protons into the intermembrane space Signup and view all the answers

What is the component of ATP synthase responsible for forming the channel for proton passage?

F0 Signup and view all the answers

What is the role of copper centres in Complex IV?

To facilitate the transfer of electrons to oxygen Signup and view all the answers

What is the driving force behind the passage of hydrogen through ATP synthase?

The proton gradient created by the electron transport chain Signup and view all the answers

What is the byproduct of the reaction catalyzed by Complex IV?

Water Signup and view all the answers