Answer:
Reduce or stop the production of energy molecule i.e ATP
Explanation:
Proton is an essential ingredient to carry out light reactions successfully and the proton requirement is fulfilled through the proton gradient formed along the membrane. A chemical that blocks the flow of electrons thereby hindering the flow of proton will adversely affect the electron transport chain reactions thereby causing reduced/no conversion of ADP to ATP.  
 
        
             
        
        
        
Explanation:
Reflexes do slow with age. Physical changes in nerve fibers slow the speed of conduction. And the parts of the brain involved in motor control lose cells over time. 
Researchers found that the brain's response time begins to decline at age 24. The descent is a slow, but nonetheless, steady one.
 
        
             
        
        
        
r<u>ate of a chemical reaction without itself undergoing any permanent chemical change.</u> That would be your answer. I hope that this helped! Please leave brainliest!
 
        
             
        
        
        
In eukariotes, cells that have a neculeus, the dna is found in the neculeus, not the cytoplasim so that is false... I dunno if that is what u were asking...
        
             
        
        
        
Answer:
Air is essential for almost all organisms.
Explanation: