1) maintain homeostasis, control what comes in and out of the cell( selectively preamble) 
2)transmit information through the membrane
        
             
        
        
        
Answer:
I do not speak spanish..
Explanation:
La cadena de transporte de electrones es una serie de transportadores de electrones incrustados en la membrana mitocondrial interna que transporta electrones desde NADH y FADH2 al oxígeno molecular. En el proceso, los protones se bombean desde la matriz mitocondrial al espacio intermembrana y el oxígeno se reduce para formar agua.
 
        
                    
             
        
        
        
Some types of bacteria can cause diseases in humans, such as cholera, diptheria, dysentery, bubonic plague, pneumonia, tuberculosis (TB), typhoid, and many more. If the human body is exposed to bacteria that the body does not recognize as helpful, the immune system will attack them. coccus, rod or bacillus, and spiral are the most common shapes of bacteria
        
             
        
        
        
Microevolution occurs on small time scales within species. Migration takes places when a population moves from one area to another. These processes can affect an ecosystem's form and functionality.