B.
Special proteins are in charge of regulating the movement of substance through the double-membrane.
        
             
        
        
        
Answer:
The cytoplasm is the answer.
Explanation:
 
        
                    
             
        
        
        
Yes they can because the catalyst does not take part in the chemical reaction and remains unchanged after the reaction has ended.  Biological catalysts are known to be recycled by the bodies in which they work.
        
             
        
        
        
Answer - Mainly RNA Molecule 
Reason - Reason is it needs an information is important to the development and synthesis of protein.