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Biology [Edexcel]

  BIOLOGY HOME
  STUDY SUPPORT
  2025 PREDICTED PAPERS
  AS CONTENT
  A LEVEL CONTENT
  AS EDEXCEL EXAM PAPERS
  A LEVEL EDEXCEL PAST PAPERS

EDEXCEL Biology: Home

Featured topics of the month:

Predicted Papers - Set A

3 papers

Adaptation & Taxonomy

6 lessons • 1h00

Statistics

9 lessons • 2h16

Maths Skills

19 lessons • 3h06

A: The Brain

7 lessons • 0h54

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Last Topics Visited

Progress Overview

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Standard Deviation
P-Values
Introduction to Statistics
Averages
Chi-squared Test
Choosing a Statistical Test
Student's t-Test
Correlation Coefficient
Calculating Standard Deviation
Percentages
Algebraic Equations
Calculating Rates
Appropriate Units
Significant Figures
Magnification
Rearrange Equations
Circles & Spheres
Prisms
Probability
Ratios
Standard Form
Orders of Magnitude
Estimation
Uncertainties
Algebraic Symbols
Tables & Bar Charts
Drawing Graphs
Scatter Diagrams
Tangents
Straight Line Graphs
Histograms
Slide Preparation
Spirometer
Colorimetry
Biological Drawings
Ethics - Invertebrates
Aseptic Technique
Dilutions
Chromatography
The Potometer
Dissection
#1 Heart Rate in Daphnia
#2 Vitamin C Content
#3 Membrane Permeability
#4 Enzyme-Substrate Reactions
#5 Root Tip Squash
#6 Light Microscopes
#7 Plant Mineral Deficiencies
#8 Tensile Strength of Plant Fibres
#9 Antimicrobial Substances
The Biological Molecules
Condensation & Hydrolysis Reactions
Monosaccharides & Disaccharides
Polymers of Carbohydrates
Triglycerides
Phospholipids
Introduction to Water
Water as a Solvent
Mass Flow in Animals
Blood Vessels
Structure of the Human Heart
Cardiac Cycle Graphs
Cardiovascular Disease (CVD)
Atherosclerosis
Blood Clotting
Cholesterol, HDLs & LDLs
Treatments for Cardiovascular Disease
Energy Budget & Diet
Surface Area to Volume Ratio
Cell Membranes
Gas Exchange in Humans
Diffusion
Fick's Law of Diffusion
Facilitated Diffusion
Active Transport & Co-transport
Exocytosis & Endocytosis
Osmosis
Nucleic Acids
Structure & Function of DNA
DNA is Universal, Non-overlapping & Degenerate
Semi-conservative DNA Replication
Proving DNA Replication is Semi-conservative
Transcription
Translation
Introduction to Proteins
Protein Structure
Fibrous & Globular Proteins
Enzymes
Protein Specificity
Enzyme Reactions - Temperature
Enzyme Reactions - pH
Enzyme & Substrate Concentration
Intracellular & Extracellular Enzymes
Inheritance Key Terms
Monohybrid Inheritance
Gene Mutations
Effects of Mutations
Cystic Fibrosis
Genetic Screening
Social & Ethical Issues of Genetic Screening
Eukaryotic Cell Structure
Eukaryotic Cell Organelles 1
Eukaryotic Cell Organelles 2
Eukaryotic Cell Organelles 3
Production & Secretion of Proteins
Prokaryotic Cell Structure
Prokaryotes vs Eukaryotes
Introduction to Cell Division
Before Meiosis
Meiosis
Meiosis & Genetic Variation
DNA, Genes & Chromosomes
Sex Linkage
Autosomal Linkage
Codominance & Multiple Alleles
Polygenic Inheritance
Mammalian Gametes
Fertilisation & the Acrosome Reaction
Mitosis
Stem Cells
Stem Cells & Medicine
The Lac Operon
Epigenetics
Cell Organisation
Plant Cell Structure
Cellulose & Starch
Plant Cell Walls
Plant Fibres & Starch
Distribution of Xylem, Phloem & Sclerenchyma
The Xylem
The Phloem
Translocation
Inorganic Ions
Drug Testing
Biodiversity
Heterozygosity Index
Index of Diversity
The Niche Concept
Reasons for Maintaining Biodiversity
Conservation of Endangered Species - Zoos
Conservation of Endangered Species - Seed Banks
Genetic Diversity & Adaptation
Variation
The Hardy-Weinberg Principle
Speciation
Classification
Phylogeny
A: Log Functions
A: Microbial Growth
A: Logarithmic Scale
#10 Distribution of a Species
#11 Rate of the Light Dependent Reaction
#12 The Temperature Coefficient (Q10)
#13 Organism Development
#14 Electrophoresis
#15 Core Practical #9 Vs. #15
#16 Rate of Respiration
#17 Effects of Exercise & Ventilation
#18 Habituation to a Stimulus
Introduction to Ecosystems
Population Key Terms
Abundance & Distribution of Organisms
Investigating Populations - Sampling
Succession
Productivity
Energy Transfer through Ecosystems
Biochemistry Key Terms
Introduction to Photosynthesis
The Chloroplast
The Light Dependent Reaction
The Light Independent Reaction (The Calvin Cycle)
ATP
Effects of Climate Change
Evidence for Climate Change
Anthropogenic Causes of Climate Change
The Carbon Cycle
The Scientific Community
Decomposition- Time of Death of a Mammal
DNA Profiling
Polymerase Chain Reaction (PCR)
One Gene Can Code For More Than One Protein
Viruses
HIV & Virus Replication
Tuberculosis (T.B.)
Infection by Pathogens
An Evolutionary Race
Antibiotics
Introduction to the Immune System
Non-specific Immune Response
Phagocytosis
T-cells & B-cells
Antibodies
Primary & Secondary Response
Active & Passive Immunity
Antagonistic Pairs
Skeletal (Voluntary) Muscle
Sliding Filament Theory
Sarcomere Contraction
Fast & Slow Twitch Muscle Fibres
Introduction To Respiration
Glycolysis
The Link Reaction
Krebs Cycle
Mitochondria
Oxidative Phosphorylation
Chemiosmotic Theory
Anaerobic Respiration - Glycolysis
Lactate
The Human Heart
The Cardiac Cycle
Controlling Heart Rate
Electrocardiogram (ECG)
Positive & Negative Feedback
Control of Body Temperature
Keyhole Surgery & Prostheses
Performance Enhancing Drugs
Transcription Factors
Second Messengers
Introduction to the Nervous System
Receptors & Neurones
Myelination & Saltatory Conduction
Resting Potential
Action Potentials
All or Nothing Law
Synapses
Reflexes
Phytochrome
Plant Growth Factors
The Human Eye
Rhodopsin, Opsin & Retinal
Pupil Dilation & Constriction
The Human Brain
Scanners & Medical Diagnosis
Habituation
Parkinson's Disease & Depression
Brain Development
Visual Development in Mammals
Animals & Medical Research
Genome Projects
Personalised Medicines & Synthetic Biology
Isolating Target Genes
Inserting Target Genes
Genetically Modified Organisms
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Live Classes

Tuesday 29th April

  • 5pm | Answering Technique (Exam Technique)

Thursday 1st May

  • 5pm | Apparatus & Techniques (Exam Skills)

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Tuesday 6th May

  • 5pm | Biological Molecules (2h) (AS)

Thursday 8th May

  • 5pm | Inheritance & Gene Technology (2h) (A Level)

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Tuesday 13th May

  • 5pm | Cells (2h) (AS)

Thursday 15th May

  • 5pm | Ecosystems & Evolution (2h) (A Level)

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Study Plans

Year 12 - AS Year 13 - A Level Resit Students
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