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IB Biology
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Course Introduction
Topic 1: Cell Biology
1.1 Introduction to cells
1.2 Ultrastructure of cells
1.3 Membrane Structure
1.4 Membrane Transport
1.5 The origin of cells
1.6 Cell Division
Topic 2: Molecular Biology
2.1 Molecules to Metabolism
2.2 Water
2.3 Carbohydrates and Lipids
2.4 Proteins
2.5 Enzymes
2.6 Structure of DNA and RNA
2.7 DNA Replication, Transcription and Translation
2.8 Cell Respiration
2.9 Photosynthesis
Topic 3: Genetics
3.1 Genes
3.2 Chromosomes
3.3 Meiosis
3.4 Inheritance
3.5 Genetic Modification
Topic 4: Ecology
4.1 & 4.2 Species, communities and ecosystems plus Energy Flow
4.3 Carbon Cycling
4.4 Climate Change
Topic 5: Evolution and Biodiversity
5.1 Evidence for Evolution
5.2 Natural Selection
5.3 Classification of biodiversity
5.4 Cladistics
Topic 6: Human Physiology
6.1 Digestion and absorption
6.2 The Blood System
6.3 Defence against infectious disease
6.4 Gas Exchange
6.5 Neurons and synapses
6.6 Hormones, homeostasis and reproduction
Topic 7: Nucleic Acids
7.1 DNA Structure and Replication
7.2 Transcription & Gene Expression
7.3 Translation
Topic 8: Metabolism Respiration & Photosynthesis
8.1
8.2
8.3
Topic 9: Plant Biology
9.1
9.2
9.3
9.4
Topic 10: Genetics & Evolution
10.1 Meiosis
10.2 Inheritance
10.3 Gene Pools & Speciation
Topic 11: Animal Physiology
11.1 Antibody Production & Vaccination
11.2 Movement
11.3 The Kidney & Osmoregulation
11.4 Sexual Reproduction
Option A: Neurobiology & Behaviour
A.1
A.2
A.3
A.4
A.5
A.6
Option C: Ecology & Conservation
C1: Species & Communities
C2: Communities & Ecosystems
C3: Impacts of Humans on Ecosystems
C4: Conservation of Biodiversity
C5: Population Ecology
C6: The Nitrogen & Phosphorus Cycles
Option D: Human Physiology
D1 Human Nutrition
D2 Digestion
D3 Functions of the Liver
D4 The Heart
D5 Hormones and Metabolism
D6 Transport of Respiratory Gases
Internal Assessment (IA)
Statistics
Helpful Resources
Exams and Revision
Past Exams
General Revision
Topic 1 Cells
Topic 2 Molecular Biology
Topic 3 Genetics
Topic 4 Ecology
Topic 5 Evolution and Biodiversity
Yr 11 Mid Year Exam Revision
Compulsory Practicals
Microscope and Calculations
Osmolarity
Enzymes
Mesocosm
Ventilation
Extended Essay Biology
IB Biology
C1: Species & Communities
Essential idea: Community structure is an emergent property of an ecosystem.
Understandings:
The distribution of species is affected by limiting factors.
Community structure can be strongly affected by keystone species.
Each species plays a unique role within a community because of the unique combination of its spatial habitat and interactions with other species.
Interactions between species in a community can be classified according to their effect.
Two species cannot survive indefinitely in the same habitat if their niches are identical.
Applications and skills:
Application: Distribution of one animal and one plant species to illustrate limits of tolerance and zones of stress.
Application: Local examples to illustrate the range of ways in which species can interact within a community.
Application: The symbiotic relationship between
Zooxanthellae
and reef-building coral reef species.
Skill: Analysis of a data set that illustrates the distinction between fundamental and realized niche.
Skill: Use of a transect to correlate the distribution of plant or animal species with an abiotic variable.
Introductory Video
Powerpoint
C1 Species and Communities Student Version
Videos
Worksheets and Activities
BioK QQ C.1 QP
Intertidal Zonation and Zone of Tolerance Questions
Biozone Community Change Solutions.pdf
Biozone Community Change.pdf
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