Molecules to Ecosystems | An IB Bio Podcast
Episodes
B3.2 - Transport
08 May 2025
Contributed by Lukas
Topic B3.2, transport, takes a look at the different circulatory systems and transport processes in animals and plants.
B3.1 - Gas Exchange
08 May 2025
Contributed by Lukas
This episode looks into topic B3.1, gas exchange to understand the adaptations of gas exchange surfaces and the different processes surrounding gas ex...
D2.3 - Water Potential
07 May 2025
Contributed by Lukas
This episode takes a quick look at topic D2.3, water potential. We look into osmosis and its effects on cells as well as water potential and how it im...
D2.2 - Gene Expression (HL)
04 May 2025
Contributed by Lukas
Topic D2.2, gene expression, is an only HL topic that looks into epigenetics and gene expression as a whole. We take a look at different mechanism and...
D2.1 - Cell and Nuclear Division
03 May 2025
Contributed by Lukas
This episode looks at topic D2.1, cell and nuclear division. We discuss the differences between mitosis and meiosis as well as the phases of the two d...
C2.2 - Neural Signalling
25 Apr 2025
Contributed by Lukas
Topic C2.2, neural signalling, looks at the structure and function of neurons and at the process of neural signalling. We take a look at different exa...
C2.1 - Chemical Signalling
24 Apr 2025
Contributed by Lukas
In this episode we take a look at topic C2.1 which is chemical signalling. This is only in the HL syllabus and looks at ligands as signalling molecule...
B2.3 - Cell Specialisation
18 Apr 2025
Contributed by Lukas
This episode looks into topic B2.3, cell specialisation. We take a look at the stem cells and their potency and then at the many adaptations of differ...
B2.2 - Organelles and Compartmentalisation
16 Apr 2025
Contributed by Lukas
Topic B2.2, organelles and compartmentalisation is largely an HL topic that takes a look at the role of compartmentalisation and separation in eukaryo...
B2.1 - Membranes and membrane transport
13 Apr 2025
Contributed by Lukas
In this episode we dive into topic B2.1, membranes and membrane transport to understand the selective permeability of cell membranes and how molecules...
A2.3 - Viruses (HL)
08 Apr 2025
Contributed by Lukas
This episode looks into topic A2.3, viruses, which is an HL topic. We discuss the features and structures in viruses and take a look at the different ...
A2.2 - Cell Structure
07 Apr 2025
Contributed by Lukas
In this episode we take a look at topic A2.2, cell structure. We discuss the structures and organelles in prokaryotic and eukaryotic cells as well as ...
A2.1 - Origins of Cells
01 Apr 2025
Contributed by Lukas
In this episode we dive into topic A2.1, origins of cells. This is an HL topic that looks into the conditions of prebiotic Earth that led to the forma...
D1.3 - Mutation and Gene Editing
30 Mar 2025
Contributed by Lukas
This episode looks into topic D1.3, mutation and gene editing. We take a look at causes and consequences of genetic mutation and discuss the impact th...
D1.2 - Protein Synthesis
27 Mar 2025
Contributed by Lukas
In this episode we look into topic D1.2, protein synthesis. We look into transcription and translation as essential processes in cells and key steps i...
D1.1 - DNA Replication
15 Mar 2025
Contributed by Lukas
This episode takes a quick look into topic D1.1 which is DNA Replication. We discuss the most important enzymes needed for the process as well as the ...
C1.3 - Photosynthesis
12 Mar 2025
Contributed by Lukas
In this episode we dive into topic C1.3, photosynthesis, in order to understand the conversion of light energy into chemical energy within organisms. ...
C1.2 - Cell Respiration
11 Mar 2025
Contributed by Lukas
This episode looks into topic C1.2, cell respiration. A larger portion of this topic is HL and looks into the reactions that occur during both aerobic...
C1.1 - Enzymes and Metabolism
22 Feb 2025
Contributed by Lukas
In this episode we take a look at topic C1.1, namely enzyme and metabolism. This episode contains several key points for other topics in the syllabus ...
B1.2 -Proteins
17 Feb 2025
Contributed by Lukas
In this episode we take a look at topic B1.2 which discusses proteins. The points and examples in the syllabus guide are looked at and explained in or...
B1.1 - Carbohydrates and Lipids
14 Feb 2025
Contributed by Lukas
In this episode I discuss topic B1.1, carbohydrates and lipids. All the content in this episode is part of the SL course and we discuss the subtopics ...
A1.2 - Nucleic Acids
28 Jan 2025
Contributed by Lukas
In this episode we dive into topic A1.2, or nucleic acids. The points and examples in the syllabus guide are both discussed and explained to give an i...
A1.1 - Water
26 Jan 2025
Contributed by Lukas
In this episode we take a look into topic A1.1, which is water. The several points provided in the IB DP Biology guide are discussed and explained to ...