Hi, to all the new students that have joined! If you have any questions don't hesitate to reach out.

Scientists produce two polypeptides, X and Y. Both are the same length and contain exactly the same number and types of amino acids. However, the amino acids occur in a different sequence. Under identical conditions: - Polypeptide X shows 100% relative binding to a target molecule. - Polypeptide Y shows only 8% relative binding. Which statement best explains the difference? 💬 Choose your answer and add one sentence of biological reasoning. A letter by itself does not count!

If you’re unsure about any question in the workbook, you’re welcome to post it in the community or send me a private message through Skool Chat. If you message me privately, I can post the question anonymously so we can also see what the community thinks. Just include the Unit, question number, and your attempted answer, and I’ll help you work through the reasoning. Don’t be afraid to ask — understanding why an answer is correct is much more important than simply getting it right. 🧬

The complete unit has been uploaded and is ready for you to explore. If you want to keep pace with AP Biology class globally, you should currently be around one-third of the way through Unit 1 (33% completed). Remember, consistency matters more than rushing—keep progressing one lesson at a time! Let me know below which topic you are currently studying! 🧬

The Unit 1: Chemistry of Life Reading Guide and Student Workbook have now been updated and added to the course. Use the Reading Guide alongside the video lessons to strengthen your understanding, then complete the matching Workbook activities to practise AP-style thinking and scientific reasoning. The Workbook does not include an answer key, so post your attempted answers or questions in the lesson comments whenever you need support. Let’s learn through discussion and help everyone work toward a 5 in AP Biology! 🧬 What are you currently most unsure or worried about in AP Biology? Your responses will help guide future explanations, practice, and support.