The electron transport chain refers to the transfer of
electrons from electron donors and electron acceptors. After the transfer of
electrons, these electrons then couple with protons (H+ ions) across a
membrane. In eukaryotic cells, electron transport chains occur within the
mitochondrial membrane where it serves as the site of oxidative phosphorylation
that uses ATP as its energy source.
<span>
The molecular oxygen is the final acceptor of electrons in an
electron transport chain. This type of transport is used by the cell in
extracting energy through redox reactions that occur during photosynthesis,
sugar oxidation, and cellular respiration. </span>
The answer is 56 I hope this helps please mark brainliest:)
a natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment and that leads to the perpetuation of genetic qualities best suited to that particular environment
Answer:
Absorb proteins that have been released through digestion
