Lecture 14_12-09-24.pdf

Introduction to Bioengineering (BBL1020) Instructor: Dr. Dinesh K. Ahirwar Department: Bioscience & Bioengineering Lecture-14 12/09/2024 Connect to WiFi Make sure IITJ account is logged on in you...

Introduction to Bioengineering (BBL1020) Instructor: Dr. Dinesh K. Ahirwar Department: Bioscience & Bioengineering Lecture-14 12/09/2024 Connect to WiFi Make sure IITJ account is logged on in your preferred web browser Recap Lipids Lipids are made up of fatty acid monomers which is responsible for energy storage, cell structural integrity and cellular signalling. Phospholipids are responsible for cell membrane structure Bio-macromolecules: Lipids – types of unsaturated fatty acids courtesy: hhmi Biointeractive Bio-macromolecules: Lipids – others courtesy: hhmi Biointeractive Formation of the Cell Membrane Bilayer formation through molecular self-assembly ΔG is negative for spontaneous processes; In order to make ΔG negative ΔS should increase if other factors remain constant. ΔS denotes change in entropy (the randomness of the system). DNA: Our hereditary material  4 7 6 1 8 9 Adenine 5 5’ H2O 4 1 3 2 3’ OH 2’deoxy ribose OH Nucleotides Hydrogen bonds of DNA