IB Biology HL - 2024 - Key Concepts
In the IB Biology HL (Higher Level) 2024 Key Concepts section, you will find summary videos that will help you review the most important concepts and skills necessary for success. They are ideal for a quick refresher before tackling questions in the Revision Village Questionbank or Practice Exams sections of the website.
Topic 1
Cell Biology
Cell Cycle - Mutagens & Cancer
9 minutes
Cell Specialisation
15 minutes
Cell Structure and Function
11 minutes
Mitosis, Cytokinesis & The Cell Cycle
18 minutes
Topic 2
Molecular Biology
Water
15 minutes
Protein Synthesis
9 minutes
Carbohydrates and Lipids
12 minutes
Structure and Function of Proteins
18 minutes
DNA Replication
9 minutes
Enzymes
11 minutes
Topic 3
Genetics
Codons, Degeneracy, and Sickle Cell
10 minutes
Inheritance
16 minutes
Topic 4
Ecology
Energy in Ecosystems
8 minutes
Carbon Cycle
11 minutes
Topic 5
Evolution & Biodiversity
Evolution and Speciation
14 minutes
Topic 6
Human Physiology
The Cardiovascular System
22 minutes
The Nervous System 1
10 minutes
The Nervous System 2
7 minutes
The Respiratory System
10 minutes
Homeostasis, Hormones and the Menstrual Cycle
12 minutes
Topic 8
Metabolism, Cell Respiration & Photosynthesis
The Electron Transport Chain and Chemiosmosis
8 minutes
Topic 11
Animal Physiology
The Musculoskeletal System I
7 minutes
The Musculoskeletal System II
10 minutes
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