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Vlada [557]
4 years ago
13

Please help need by tomorrow

Biology
1 answer:
Vlada [557]4 years ago
7 0

B is the correct answer.

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mitochondria or submitochondrial particles can carry out the following coupled reaction: 2 cyt c (red) 1/2 o2 adp pi -> 2 cyt
shutvik [7]

Answer: Complex IV, also known as cytochrome c oxidase, oxidizes cytochrome c and transfers the electrons to oxygen, the final electron carrier in aerobic cellular respiration. The cytochrome proteins a and a3, in addition to heme and copper groups in complex IV transfer the donated electrons to the bound dioxygen species, converting it into molecules of water. The free energy from the electron transfer causes 4 protons to move into the intermembrane space contributing to the proton gradient. Oxygen reduces via the following reaction:

2 cytochrome c(red) + ½O2 + 4 H+(matrix) -> 2 cytochrome c(ox) + 1 H2O + 2 H+(intermembrane)

Explanation:

In the electron transport chain (ETC), the electrons go through a chain of proteins that increases its reduction potential and causes a release in energy. Most of this energy is dissipated as heat or utilized to pump hydrogen ions (H+) from the mitochondrial matrix to the intermembrane space and create a proton gradient. This gradient increases the acidity in the intermembrane space and creates an electrical difference with a positive charge outside and a negative charge inside. The ETC proteins in a general order are complex I, complex II, coenzyme Q, complex III, cytochrome C, and complex IV.

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3 years ago
What can energy that stays in trophic levels be used for ?
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The parts of the plant(angiosperms)involved in producing gametes(pollen
Shkiper50 [21]
The reproductive system. The seeds are a mean for plants to reproduce themselves
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9) A force of 20 N acts upon a 5 kg block. Calculate the acceleration of the object.
Mkey [24]

Answer:

4

Explanation:

According to newton's second law f=ma. so a =f/m

then a=20/5 gives 4

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3 years ago
Read 2 more answers
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