It shows the evolution of certain species through the bone structures of the fossils.
AMINO ACIDS is the subunit of a protein molecule
According to the second law of thermodynamics, energy is never 100% efficient because some of the energy disperses as heat.
Answer: Protons contribute towards making ATP by producing proton-motive force that provides energy for ATP synthesis.
Explanation: In the respiratory chain, the transfer of electrons from one complex to another is accompanied by pumping of protons out of the matrix. This creates a difference in proton concentration and separation of charge across the mitochondrial inner membrane. The electrochemical energy inherent in this difference in proton concentration called proton-motive force is used to drive ATP synthesis as protons flow back passively into the matrix through a proton pore.