1. Describe mitochondrial electron transport from NADH to O2 by listing the protein complexes involved, the...

1. Describe mitochondrial electron transport from NADH to O₂ by listing the protein complexes involved, the mobile electron carriers, at which point protons are transported, and how many protons at each step.

2. Based on your knowledge of the structure of protein Complex I of the ETC, describe how electron transport is linked to the passage of 4 protons through Complex I. Describe the protein structure changes that occur.

3. . Describe the subunit structure ATP Synthase. What subunits comprise the F₁ and the F₀ subunits? Know the role of the “C” protein, the shaft protein, and the alpha-beta dimers.

Expert Solution

gladiator answered 2 years ago

In mitochondrial electron transport, what is the direct role of O2?

The role of O2 in electron transport In mitochondrial electron transport, what is the direct role of O2? a)to provide the driving force for the synthesis of ATP from ADP and Pi b)to function as the final electron acceptor in the electron transport chain c)to oxidize NADH and FADH2 from glycolysis, acetyl CoA formation, and the citric acid cycle d)to provide the driving force for the production of a proton gradient

Consider the mitochondrial electron transport chain that utilizes NADH a. Write a NET balanced equation for...

Consider the mitochondrial electron transport chain that utilizes NADH a. Write a NET balanced equation for the entire reaction run by Complex I, Complex III and Complex IV together. Include the protons pumped from the inside to the outside of the matrix. b. If you assume that the membrane potential is 200 mV and the pH gradient is 0.5 and the temperature is 37 C, how much energy is stored by the total reaction you wrote down in (a) as...

Describe the process of electron transport provided by NADH and FADH2 through the electron transport chain

Label the appropriate parts of the electron transport chain and complexes involved in chemiosmosis.

Label the appropriate parts of the electron transport chain and complexes involved in chemiosmosis. NADP reductase Chemiosmosis Electron transport chain Photosystem II ATP synthase Photosystem I

Describe the mitochondrial electron transport pathway and the synthesis of ATP by mammalian mitochondria. Describe the...

Describe the mitochondrial electron transport pathway and the synthesis of ATP by mammalian mitochondria. Describe the urea cycle including its function, energy costs and regulation. If palmitic acid (16:0) labeled in C-1 were metabolized under anaerobic metabolism in mammalian tissues, what carbon atom would be tagged with 14C in what compound?

Which of the following complexes involved in electron transport and oxidative phosphorylation does NOT directly impact...

Which of the following complexes involved in electron transport and oxidative phosphorylation does NOT directly impact the pH of mitochondrial intermembrane space? A) Complex I B) Complex II C) Complex III D) Complex IV E) Complex V

1. a) Advantages of supercomplexes in electron transfer. There is increasing evidence that mitochondrial complexes I,...

1. a) Advantages of supercomplexes in electron transfer. There is increasing evidence that mitochondrial complexes I, II, III, and IV are included in larger supercomplexes. What could be the advantage of having all four complexes in a super complex? b) Why is the cellular concentration of ATP kept stable? Why can't the cell simply be storing ATP? c) Why is it physiologically advantageous that the heart muscle has more mitochondria than liver cells?

BIOCHEMISTRY 4 complexes are involved in the electron transport chain. identify the following: Common Complex produced...

BIOCHEMISTRY 4 complexes are involved in the electron transport chain. identify the following: Common Complex produced by Complex I and Complex II: Complex that reduces molecular oxygen: Complex that is coupled to ATP synthesis: Energy for ATP synthesis is derived from: Net reaction that occurs at Complex I Net reaction that occurs at Compex III Net reaction that occurs at Complex IV NADH donates -------- electrons during oxidation Which of the 4 complex(es) translocate protons in the inner mitochondrial membrane?...

Describe how NADH and FADH2 are converted into ATP by the electron transport chain and ATP...

Describe how NADH and FADH2 are converted into ATP by the electron transport chain and ATP synthase. Describe the proteins involved, and describe the roles of H+, e-, and O2 in the process.

Assuming the electron transport chain received electrons from NADH and FADH2 in a 3:1 ratio as...

Assuming the electron transport chain received electrons from NADH and FADH2 in a 3:1 ratio as the wild type for a particular organism, what would the consequences be of a change to a 1:1 ratio? Select all that apply.

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