Case study on how specific diets (juice diet and no-fat diet) affect biomolecule

Case study on how specific diets (juice diet and no-fat diet) affect biomolecules and cellular function. I have a draft completed but honestly it’s bad. She did not specify format in her instructions so I wrote it essay style. She has since told us she wants APA Scientific but won’t specify what that means. I’m guessing Abstract, Intro, Methods, Results, Conclusion. She is meticulous about citations and says if you miss any you get a 0 for the paper. I likely need more research on the biomolecules function (3, 4 & 5 on her requirements sheet).