Answer:
Three proteins directly contribute to the proton gradient by moving protons across the membrane
Explanation:
The Electron transport chain is a group of proteins and molecules incrusted in the internal mitochondrial membrane and organized into four complexes, I, II, III, and IV. These complexes contain the electron transporters and the enzymes necessary to catalyze the electron transference from one complex to the other. Complex I contains the flavine mononucleotide -FMN- that receives electrons from the NADH. The coenzyme Q, located in the lipidic interior of the membrane, conducts electrons from complex I and II to complex III. The complex III contains cytochrome b, from where electrons go to cytochrome c, which is a peripheric membrane protein. Electrons travel from cytochrome c to cytochromes a and a3, located in the complex IV. Finally, they go back to the matrix, where they combine to H+ ions and oxygen, to form the water molecule. As electrons are transported through the chain, protons are bombed through three proteinic complexes from the matrix to the intermembrane space. These are complexes I, III and IV.
In small intestine water is extracted from digested food.
Adenine (A) binds with Thymine (T).
<span>Guanine (G) binds with Cytosine (C).
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Adenine and Guanine are purines. Thymine and Cytosine are pyrimidines.
Hope this helps !
Photon
Solar Distance:
The solar distance is the distance<span> between the Earth and the Sun. Since the Earth rotates, the distance changes.
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Air Pressure:
The air pressure/atmospheric pressure is <span>the pressure spent by the weight of the atmosphere.
</span>Latitudinal Location:
the latitudinal location is used, with longitude, to specify the exact location<span> of features on the Earth surface.
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Water presence:
The water presence is the existence of water.
There are many factors that influence the weather but the 4 main ones are solar distance, air pressure, latitudinal location, and water presence.
I hope this helps!
What determines the chemical properties is : color, hardness, luster, crystal forms, density, and cleavage.
