Week 1 L01 Intro to cell structure and organelles

(refresher)

• Lipid membranes form efficient barriers between organelles, or environments
• What cellular functions does the nucleus perform?
• What are the functions of the ER and what is the difference between rough and smooth?
• Why are the functions of the golgi apparatus required in a cell?
• Why does a mitochondrion need a double membrane to produce energy for the cell?
• Why do cells need peroxisomes and lysosomes?
• What is the cytosol and what cellular functions take place there?
• why is having a cytoskeleton important to a cell?

Week 1 L01 Proteins and their functions

Overview

• Protein structure
• Functions
• Regulation
• Diseases by malfunction

Structure

• Primary - Amino acid sequence
• Secondary - Hydrogen bonding between amide bond constituents 4 apart causes folding into α-helix. Hydrophobic.