Teaching slides organised by topic, embedded exam questions, and mark scheme walk-throughs. Arrow keys to navigate.
Each deck has three viewing options:
- Open slides — the full deck
- Presenter view — current slide + next slide preview + speaker notes (open on your laptop while projecting “Open slides”)
Unit 1 — Biological Molecules
DNA Replication
AQA Topic 3.1 · ~30 slides
Semi-conservative replication, the roles of DNA helicase and DNA polymerase, phosphodiester bonds, and the Meselson–Stahl experiment.
Unit 2 — Cells
All Cells Arise from Other Cells
AQA Topic 3.2 · ~40 slides
The cell cycle, stages of mitosis (PMAT), root tip squash practical, mitotic index, cancer, binary fission, viral replication, and HIV as a retrovirus example.
Cell Recognition & the Immune System
AQA Topic 3.2 · ~55 slides
Antigens, phagocytosis, cellular & humoral responses, antibodies, primary & secondary responses, vaccines, active vs passive immunity.
HIV & AIDS
AQA Topic 3.2 · ~30 slides
Virus structure (general & HIV-specific), HIV replication in helper T cells, how HIV causes AIDS, why antibiotics don't work against viruses.
Monoclonal Antibodies & ELISA
AQA Topic 3.2 · ~30 slides
What monoclonal antibodies are, targeted medical treatments (cancer ADCs), pregnancy testing, the ELISA test (direct & indirect, dengue and BrdU applications), production via hybridomas, and ethical considerations.
Past Paper Revision
2024 Paper 1 — Revision Walk-through
AQA A-level Biology · ~90 slides
Full walk-through of the 2024 Paper 1: every question verbatim, mark schemes, step-by-step working for calculations, and examiner tips throughout.
2023 Paper 1 — Revision Walk-through
AQA A-level Biology · ~90 slides
Full walk-through of the 2023 Paper 1: every question verbatim, mark schemes, step-by-step working for calculations, and examiner tips throughout.
2024 Paper 2 — Revision Walk-through
AQA A-level Biology · ~120 slides
Full walk-through of the 2024 Paper 2: synaptic transmission, skeletal muscles, photosynthesis, inheritance & Hardy–Weinberg, populations & ecosystems, homeostasis, genetic fingerprinting & rDNA, plant responses, and blood glucose control, with mark schemes and examiner tips throughout.
Paper 1 — Question 10 (2017–2024)
AQA A-level Biology · ~65 slides
The 15-mark extended-writing Question 10 across every Paper 1 from 2017 to 2024: each question verbatim, mark schemes, and structured point-by-point model answers.
Unit 4 — Genetic Information, Variation & Relationships
DNA, Genes & Chromosomes
AQA Topic 3.4 · ~25 slides
DNA structure recap, DNA vs RNA comparison, prokaryotic vs eukaryotic DNA, genes and loci, the genetic code (triplet, universal, non-overlapping, degenerate), introns, exons and non-coding repeats.
DNA and Protein Synthesis
AQA Topic 3.4 · ~37 slides
Genome and proteome, mRNA and tRNA structure, transcription (helicase, RNA polymerase, splicing), prokaryotic vs eukaryotic transcription, translation (codons, anticodons, peptide bonds, ATP), and exam question walk-throughs.