I have a PDF file for analysis, 7-8 sentences needed in a form of a memo (link

I have a PDF file for analysis, 7-8 sentences needed in a form of a memo (link below), so around 250 words in total should be the maximum word count, I’m fine with less.
Format: The memo should be in the format of a short letter to your boss, the Head of Drug Discovery. You may be creative with the names of people and companies if you wish. If you are unsure of the correct formatting for a memo, check out these templates.

Length: The Memo should be approximately two paragraphs in length. Do not exceed 400 words. Managers don’t like to read lengthy articles. Keep everything very clear and brief. 

Content: The Head of Drug Discovery does not remember all of the details about how enzymes work. The Memo needs to:

Define enzymes. 
Explain how enzymes function as catalysts for biochemical reactions.
Discuss how reactions can be inhibited by inhibiting enzymes. (Note: enzymes themselves do NOT inhibit chemical reactions. Another inhibitory ligand binds to the enzyme, preventing it from catalyzing the reaction.) 
Explain the importance of drugs that could be developed to interfere with the structure of telomerase to treat cancer. 
https://create.microsoft.com/en-us/templates/memo