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JulijaS [17]
3 years ago
5

Food moves through the digestive system in a series of waves of muscular contractions called ______________.

Biology
1 answer:
kifflom [539]3 years ago
4 0
It's called peristalsis
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Answer:

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3 years ago
Of the following lists of electron transport compounds, which one lists them in order from the one containing electrons with the
notsponge [240]

Answer:

B) FADH2 -- FMN of Complex I -- Fe-S of Complex II -- Q -- Fe-S of Complex III -- Cyt c -- Cyt a of Complex IV -- O2

Explanation:

FADH2 and NADH give their high energy electrons to the terminal electron acceptor molecular oxygen via an electron transport chain. As the electrons move through electron carriers of the electron transport chain, they lose their free energy. Part of the free energy of the electrons is used to pump the protons from the matrix into the intermembrane space. Therefore, part of the energy of electrons is temporarily stored in the form of a proton concentration gradient.

NADH gives its electrons to FMN of complex I while FADH2 gives its electrons to the Fe-S center of complex II. Both the complexes are oxidized by coenzyme (Q) which in turn reduces Fe-S centers of complex III. Cyt c of complex IV obtains electrons from complex III and passes them to CuA center, to heme "a" to heme "a3-CuB center" and finally to the molecular oxygen.

So, the compounds arranged with respect to the energy content of electrons in descending order are as follows: FADH2 -- FMN of Complex I -- Fe-S of Complex II -- Q -- Fe-S of Complex III -- Cyt c -- Cyt a of Complex IV -- O2.

6 0
3 years ago
Full meaning of BLOOD?
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What percent of marine creatures live in coastal waters?
astraxan [27]
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7 0
2 years ago
Which is the correctly balanced equation for the reaction of rust, Fe2O3, and hydrochloric acid, HCl?
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If you count the number of each elements on both sides, they are equal. If you need me to explain this better, let me know and I would be glad to help
4 0
2 years ago
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