Membrane proteins are among the most important proteins biologically because they allow cells to communicate with their environments. in humans, they determine whether the immune system recognizes the cell as foreign or not and they are the targets of most a) drugs b) gases c) sugars d) water

How does the fermentation of pyruvic acid in cells contribute to the formation of atp? a. it completes the oxidation of glucose to co2, creating atp. b. it generates lactic acid, which cycles back through the krebs cycle, producing 2 atp molecules. c. it converts fadh2 to phosphate, which bonds with adp. d. it produces 2 nad+ molecules, which cycle back to fuel the glycolysis reaction, allowing 2 atp molecules to be produced.