300 words initial Post

I need 300 words initial Post and 3 replies of 75-100 words replies each on three given replies. No Plagiarism. Due in 6 hours. 

1. Give a brief description of each of the 4 macromolecules. (Protein, Lipids, Carbohydrates, Nucleic Acids)

2. Write what you ate at your last complete meal and categorize each food carbohydrate, lipids, protein and nucleic acids.   Be detailed and must be original writing.  

3.  Comment on at least 3 others posts with three or more sentences.  

No cutting and pasting or list of ingredients off labels.