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FromTheMoon [43]
3 years ago
11

A population of shrimp suddenly starts collapsing. A biologist believes that toxins in the food chain are interfering with larva

e development. A climate scientist believes that a change in water temperature is depleting food sources from the water. Why are both of these options valid scientific hypotheses?
Biology
1 answer:
laila [671]3 years ago
7 0
Both options are valid because they have happened before and can influence the mentioned drop in the population. Toxins in the food chain, just like the increase of water temperature, are easily proven and found and are mostly human made.  
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The set of proteins in the cristae of the mitochondrion, which collectively extract the energy from reduced coenzymes to form at
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Cell respiration involves different steps, among which there is the oxidative phosphorilation that produces and stores ATP. The answer is the <u><em>electron transporter chain</em></u>.

<h3>ELECTRON TRANSPORTER CHAIN -oxidative phosphorylation-</h3>

The electron transporter chain + chemiosmosis constitute the process of oxidative phosphorylation.

  • Chemiosmosis

Chemiosmosis refers to ATP production through a proton gradient.

  • Electron transporter chain

The electron transporter chain is a series of molecules and proteins located in the internal mitochondrial membrane.

It constitutes a series of enzymatic reactions to release and save energy for the correct functioning of the organism.

Along the chain, there are four proteinic complexes in the membrane, I, II, III, and IV, that contain the electrons transporters and the enzymes necessary to catalyze the electrons' transference from one complex to the other.

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Released energy creates a proton concentration gradient used to synthesize ATP.

<h3>Steps in the electectron transporter chain</h3>

1) NADH provides electrons to the first complex, Complex I. From there, electrons go to the coenzyme Q that carries them to complex II. Meanwhile, complex I pomp four protons to the intermembrane space.

2) Complex II receives electrons from CoQ and also receives electrons from FADH2. Electrons are sent from complex II to ubiquinone Q, which carries these electrons to complex III.

3) Complex III receives electrons from ubiquinone Q and pomps protons to the intermembrane space. Electrons are transferred to Cytochrome c.

Electrons travel from cytochrome c to complex IV.

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The proton gradient is used to produce ATP molecules.

In conclusion, <em>the set of proteins in the cristae of the mitochondrion, which collectively extract the energy from reduced coenzymes to form atp, are called the</em> <u><em>electron transporter chain</em></u>.

You will learn more about the electron transporter chain at

brainly.com/question/24372542

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