<span>After strenuous exercise, a muscle cell would contain decreased amounts of ATP</span>
        
             
        
        
        
with this option given I don't think there is an odd one
 
        
                    
             
        
        
        
<span>The protons want to diffuse into the mitochondrial matrix and they do this by going through the ATP synthase protein which resembles a water turbine. As the protons move through the ATP synthase, ATP is produced. In essence the energy from H+ wanting to diffuse through the inner mitochondrial membrane is converted to energy in the form of ATP</span>
        
                    
             
        
        
        
Dorsal means back as in the back area. Example~  Many dolphins have a pronounced beak and all have a central dorsal fin and sharp teeth for feeding, mainly on squid and fish.