Answer:    Membrane transport proteins are specific and selective for the molecules they move, and they often use energy to catalyze passage. Also, these proteins transport some nutrients against the concentration gradient, which requires additional energy.
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Pluto is yo answer ma maaan
        
                    
             
        
        
        
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 I think its true i dont really know. hope this helps!!
 
 
        
             
        
        
        
I think the answer will be B