Students enjoyed this class, consolidating their knowledge of carbohydrates, lipids and nucleic acids using soft lollies and toothpicks today. They were able to show that disaccharides are made up of two monosaccharides and polysaccharides are made up of many sugar units (using fruit pastilles) and that lipids consist of a glycerol unit (jersey caramel) and 3 fatty acid chains (jelly snakes). Phospholipids consist of a phosphate group (marshmallow), a glycerol (jersey caramel) and two fatty acid chains. DNA consists of a sugar (fruit pastille) and phosphate (marshmallow) backbone and pairs of nitrogenous bases (jelly joiners), arranged in a double helix. Some showed the two hydrogen bonds between Adenine and Thymine and the three hydrogen bonds between Cytosine and Guanine.
As our next lesson will not be until after the VCE Study Camp, please continue to read through Chapter 2 (Membranes and Cell Organelles), as the practical experiment we are doing at Federation University is all about cell membranes. You will need to understand the following terms and definitions:
- prokaryotic and eukaryotic
- plasma membrane
- phospholipid bilayer
- partially permeable
- diffusion and osmosis (passive transport)
- hydrophilic and hydrophobic (or lipophilic)
- channel-mediated and carrier-mediated
- active transport
- phagocytosis, pinocytosis, exocytosis and endocytosis
- ribosomes, endoplasmic reticulum and golgi complex
- lysosomes, peroxisomes and endosomes
- chloroplasts – including lamella, grana and thylakoids
I suggest you create a set of Quizlet flashcards using these terms and definitions.