Biology QuizTheLastDialogue BIOLOGY QUIZ Test Your Knowledge Of Biology With These Quizzes Biology Online Quiz for Kids and Adults #1. Is there a central processing Unit in the brain? Yes No Work Harder #2. Mitochondria in living cell is responsible for: Building proteins To controls all its activity communication with the external environment Power generation Work Harder Previous Finish Results Well Done. You Are Roaring Like A Lion Keep Working. Slow & Steady Wins The Race START NEW