OCR A Level Biology A (H420) | Module 2.1.2 Biological molecules – Proteins

Specification point covered: 2.1.2 (g) the structure of an amino acid 2.1.2 (h) the synthesis and breakdown of dipeptides and polypeptides, by the formation and breakage of peptide bonds 2.1.2 (i) the levels of protein structure 2.1.2 (j) the structure and function of globular proteins including a conjugated protein 2.1.2 (k) the properties and functions of fibrous proteins This is the proteins lesson in the biological molecules series. We cover amino acid structure, R groups, essential versus non-essential amino acids, then secondary, tertiary and quaternary structure, bonding, hydrophobic interactions, testing for proteins, and fibrous proteins. Timestamps 0:00 – Introduction 0:03 – Spec points 0:14 – Amino acid structure 3:33 – R group examples 3:45 – Essential versus non-essential amino acids 4:23 – Secondary structure 5:25 – Tertiary structure 5:58 – Bonding 7:42 – Hydrophobic interactions 8:11 – Quaternary structure 9:20 – Testing for proteins 9:37 – Fibrous proteins Free notes and the spec tracker are on biobud.uk. Full series: Stem Cell Tuition. If this helped, like the video, subscribe and turn on notifications for the next lesson. #OCRBiology #ALevelBiology #Proteins #BiologicalMolecules #Module2 #OCRH420 #StemCellTuition #BioBud