NEW (2016) AS-Level Biology - Proteins

This lesson is designed for the NEW AQA AS-level Biology course, particularly the ‘Biological Molecules’ module.

For more lessons designed to meet specification points for the NEW AQA A-level Biology course please visit my shop: https://www.tes.com/teaching-resources/shop/SWiftScience

A-Level lesson format: I teach in more of a lecture style compared to GCSE. In the majority of my A-level lessons the beginning portion of the lesson is mainly teacher-led, where students are expected to take notes onto a handout/in their books. This is then mixed in with student-led activities, as well as questions and exam prep.

You will find some of my slides have blank spaces for you to add more detail/descriptions/explanations. If you look at the ‘Notes’ section underneath each of these slides, you will find additional content which you can add in as you teach!

This lesson begins with an introduction to proteins, the importance of such molecules in the human body as well as the general structural formula of an amino acid.

Students are then shown the structural formula of two amino acids - glycine and alanine - and are asked to used their mini whiteboards to show how a condensation reaction could occur between the two molecules to form a peptide bond. There work can then be checked against the answer provided on the PowerPoint.

Over the course of the next few slides, you can run through the main principles of the formation of a protein from the primary -> secondary -> tertiary -> quaternary structure. As students listen to the main principles, they can write these down onto their ‘Protein Summary Sheet’ - provided.

Students will then be given a worksheet which shows an image/description of a protein as one of the four levels of protein formation, students have to identify which level it is at (primary, secondary, tertiary, quaternary). Once complete, students can self-assess their work using the answers provided on the PowerPoint.

Students will now be introduced to the Biuret test for proteins, which they will need to be able to recite as well as give details of a positve/negative result.

The last activity is a past-paper question to test students knowledge of what has been learned this lesson, which can be self-assessed using the mark scheme provided.

The plenary requires students to write a twitter message to outline what they have learned this lesson, including #keywords.

All resources are included. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)