Here are two 20 minute student essays that address learning objective 4.1: explain the connection between the sequence and the subcomponents of a biological polymer and its properties. Easy to score rubrics are included in both MS word and PDF format. The word files are easy to edit with your own standards and requirements. I have built in generous "extra points," so students can build confidence with essay writing early on in the course. You can choose between carbohydrate structure and function, or protein structure. It's great to have an extra essay on hand for students who are absent on essay day.