Answer:
b. Chemiosmosis
Explanation:
Chemiosmosis refers to the process during which phosphorylation of ADP into ATP is driven by the energy of an electrochemical gradient. This electrochemical gradient was generated during the transfer of electrons down an electron transport chain. The components of the electron transport chain pump the protons across the membrane to produce a proton concentration gradient. During chemiosmosis, protons diffuse through the transmembrane channels of ATP synthase and ATP is synthesized. There is no reduction of NAD+ or oxidation of NADH during chemiosmosis.
They are unicellular and not a multi-cellular, so your answer would be Option D)<span>They are multicellular.
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Active transport because it is moving from a lower concentration to a higher concentration
The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.
