When plants make glucose during photosynthesis, they convert light energy into chemical energy.
 
        
             
        
        
        
<u>Answer:</u>
Discovery of vaccine for smallpox, viruses and actual organisms that cause many diseases lead to the development of Germ Theory. 
<u>Explanation:</u>
- Theory was the 'predominant theory' of 'disease transmission' before germ theory but it is no longer accepted as a 'scientific theory' of diseases. 
- 'Formal and reliable experiments' on germs and diseases relationship were 'conducted by Louis Pasteur'. 
- He showed that growth of microorganisms was not a spontaneous generation and his pasteurization experiment provided key pieces of evidence that supported germ theory.
 
        
             
        
        
        
Known as the cell’s “command center,” the nucleus is a large organelle that stores the cell’s DNA (deoxyribonucleic acid). The nucleus controls all of the cell’s activities, such as growth and metabolism, using the DNA’s genetic information. Within the nucleus is a smaller structure called the nucleolus, which houses the RNA (ribonucleic acid). RNA helps convey the DNA’s orders to the rest of the cell and serves as a template for protein synthesis.
        
             
        
        
        
Structure and Function is my answer