HomeIBBiology: SLDPRevision Notes

DP IB Biology: SL Revision Notes

Concise resources for the DP IB Biology: SL course.

Syllabus Edition

First teaching 2014

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Last exams 2024

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1. Cell Biology

1.1.1 Cell Theory

1.1.2 Functions of Life

1.1.3 Surface Area to Volume Ratio

1.1.4 Cell Specialisation

1.1.5 Stem Cells

1.1.6 Skills: Cell Theory

1.2.1 Origin of Cells

1.2.2 Endosymbiotic Theory

1.2.3 Prokaryotic Cell Structure

1.2.4 Eukaryotic Cell Structure

1.2.5 Exocrine Pancreatic & Palisade Mesophyll Cells

1.2.6 Comparison of Prokaryotic & Eukaryotic Cells

1.2.7 Microscopes

1.2.8 Skills: Drawing Cells

1.2.9 Skills: Cell Origin & Ultrastructure

1.3.1 Phospholipid Bilayer Properties

1.3.2 Membrane Proteins

1.3.3 History of Fluid Mosaic Model

1.3.4 Membrane Transport

1.3.5 Active Transport & Bulk Transport

1.3.6 Skills: Membrane Structure & Transport

1.3.7 Skills: Estimation of Osmolarity

1.4.1 Cell Cycle

1.4.2 Phases of Mitosis

1.4.4 Skills: Cell Division

2. Molecular Biology

2.1.1 Molecules

2.1.2 Metabolism

2.1.3 Hydrogen Bonds

2.2.1 Carbohydrates

2.2.2 Fatty Acids

2.2.4 Skills: Visualising Carbohydrates

2.2.5 Skills: Calculating BMI

2.3.2 Protein Structure & Function

2.3.3 The Variety of Proteins

2.3.4 Skills: Molecules

2.4.2 Immobilised Enzymes

2.4.3 Skills: Enzyme Experiments

2.5.1 DNA & RNA Structure

2.5.2 DNA Replication

2.5.3 Skills: DNA Replication

2.6.1 Transcription

2.6.2 Translation

2.6.3 Biotechnology

2.6.4 Skills: DNA, RNA & Protein Synthesis

2.6.5 Skills: Interpreting Sequences

2.7.1 Cellular Respiration

2.7.2 Anaerobic Respiration

2.7.3 Aerobic Respiration

2.7.4 Skills: Respiration

2.8.1 Photosynthesis

2.8.2 Photosynthesis Continued

2.8.3 Skills: Photosynthesis

2.8.4 Skills: Separating Photosynthetic Pigments

4. Ecology

4.1.1 Species & Population

4.1.2 Methods of Nutrition

4.1.3 Community

4.1.4 Nutrient Cycling

4.1.5 Energy Flow

4.1.6 Energy Losses

4.1.7 Skills: Species, Communities, Ecosystems & Energy Flow

4.1.8 Skills: Chi-squared test & Statistical Significance

4.1.9 Skills: Pyramids of Energy

4.2.1 Carbon Cycle: Carbon Dioxide

4.2.2 Carbon Cycle: Carbon Dioxide in the Atmosphere

4.2.3 Carbon Cycle: Methane

4.2.4 Carbon Cycle: Organic Matter

4.2.5 Climate Change: Greenhouse Effect

4.2.6 Climate Change: Impact

4.2.7 Climate Change: Causes

4.2.8 Skills: Carbon Cycling & Climate Change

5. Evolution and biodiversity

5.1.1 Evolution

5.1.2 Evolution: Evidence

5.1.3 Variation

5.1.4 Natural Selection

5.1.5 Natural Selection Examples

5.2.1 Classification System

5.2.2 Classifying Organisms

5.2.3 Plant Phyla Features

5.2.4 Animal Phyla Features

5.2.5 Cladistics

5.2.6 Reclassification

5.2.7 Skills: Classification & Cladistics

6. Human Physiology

6.1.1 Digestion

6.1.2 Villi & Absorption

6.1.3 Absorption

6.1.4 Skills: Digestion & Absorption

6.2.1 The Blood System: History

6.2.2 The Blood System: Vessels

6.2.3 The Blood System: Double Circulation

6.2.4 The Blood System: Cardiac Cycle

6.2.5 The Heart Rate

6.2.6 Skills: The Blood System

6.3.2 Blood Clotting

6.3.3 White Blood Cells

6.3.4 Antibiotics

6.3.5 Antibiotic Resistance

6.4.1 Ventilation: Function & Structures

6.4.2 Ventilation: Mechanism

6.4.3 Lung Diseases

6.4.4 Skills: Monitoring Ventilation

6.5.1 Neurones: Function & Structure

6.5.2 Nerve Impulses

6.5.4 Skill: Neurones & Synapses

6.6.2 Hormones Continued

6.6.3 Reproduction: Background

6.6.4 Reproduction: Sex Determination in Males

6.6.5 Reproduction: Sex Determination in Females

6.6.6 Skills: Reproduction Diagrams