Course overview

1. Topic 1 Biological molecules [108 mins]

   11 lessons

   1. 1.1 Monomers and polymers [6 mins]
   2. 1.2 Carbohydrates [19 mins]
   3. 1.3 Lipids [10 mins]
   4. 1.4.1 General properties of proteins [12 mins]
   5. 1.4.2 Many proteins are enzymes [13 mins]
   6. Required practical 1 [8 mins]
   7. 1.5.1 Structure of DNA and RNA [11 mins]
   8. 1.5.2 DNA replication [10 mins]
   9. 1.6 ATP [9 mins]
   10. 1.7 Water [6 mins]
   11. 1.8 Inorganic ions [4 mins]

2. Topic 2 Cells [162 mins]

   9 lessons

   1. 2.1.1 Structure of eukaryotic cells [22 mins]
   2. 2.1.2 Structure of prokaryotic cells and of viruses [9 mins]
   3. 2.1.3 Methods of studying cells [19 mins]
   4. 2.2 All cells arise from other cells [15 mins]
   5. Required practical 2 [8 mins]
   6. 2.3 Transport across cell membranes [21 mins]
   7. Required practical 3 [12 mins]
   8. Required practical 4 [9 mins]
   9. 2.4 Cell recognition and the immune system [47 mins]

3. Topic 3 Organisms exchange substances with their environment [114 mins]

   6 lessons

   1. 3.1 Surface area to volume ratio [7 mins]
   2. 3.2 Gas exchange [27 mins]
   3. 3.3 Digestion absorption [16 mins]
   4. 3.4.1 Mass transport in animals [40 mins]
   5. Required practical 5 [4 mins]
   6. 3.4.2 Mass transport in plants [20 mins]

4. Topic 4 Genetic information, variation and relationships between organisms [129 mins]

   8 lessons

   1. 4.1 DNA, genes and chromosomes [19 mins]
   2. 4.2 DNA and protein synthesis [19 mins]
   3. 4.3 Genetic diversity can arise as a result of mutation or during meiosis [22 mins]
   4. 4.4 Genetic diversity and adaptation [20 mins]
   5. Required practical 6 [10 mins]
   6. 4.5 Species taxonomy [14 mins]
   7. 4.6 Biodiversity within a community [15 mins]
   8. 4.7 Investigating biodiversity [10 mins]