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12 complete Biology slide decks, written and shared by teachers. Free to browse; an account unlocks every slide.

12 lessons shared
Organisation
The Hierarchy of Organisation
Cells are the basic building blocks of all living organisms, and they are organised into progressively larger, more complex levels. Each level builds on the last: cells form tissues, tissues form organs, organs form organ systems, and organ systems work together to form the whole organism.
Cell → Tissue → Organ → Organ System → Organism
Example
A single muscle cell joins with other muscle cells to form muscle tissue; this tissue combines with other tissues to form the stomach, which is part of the digestive system – a key organ system in the human organism.
The Hierarchy of Organisation
17 slides

Principles of Organisation: Animal Tissues, Organs and Organ Systems

By Isabella Lassman

Biology · GCSE · AQA

New
plant cells magnified microscope view
Cell Structure: Animal and Plant Cells
Cells are the basic unit of life. AQA GCSE Biology 4.1 – all cell sizes measured in micrometres (μm\mu m).
8 slides

Cell Structure: Animal and Plant Cells

By BA Library

Biology · GCSE · AQA

Comparing animal and plant cell structure, organelles and their functions.

Used by 1 teacher
scientist viewing cells under laboratory microscope
Stem Cells and Differentiation
One cell, many possible futures – how unspecialised cells become the specialised cells that build an organism (AQA GCSE Biology 4.1.2.3)
9 slides

Stem Cells and Differentiation

By BA Library

Biology · GCSE · AQA

Embryonic and adult stem cells, therapeutic uses, and the ethical debate.

Not used yet
fluorescent stained cells dividing under microscope
Mitosis and the Cell Cycle
AQA GCSE Biology 4.1.2 – how cells grow, divide and produce genetically identical copies for growth and repair
9 slides

Mitosis and the Cell Cycle

By BA Library

Biology · GCSE · AQA

The stages of the cell cycle and mitosis, and why cell division matters.

Not used yet
root hair cells plant root macro soil
Cell Transport: Diffusion, Osmosis and Active Transport
How substances move into and out of cells — three processes compared AQA GCSE Biology 4.1.3.1–4.1.3.3
8 slides

Cell Transport: Diffusion, Osmosis and Active Transport

By BA Library

Biology · GCSE · AQA

The three mechanisms of movement across cell membranes, with worked examples.

Not used yet
microscope view of plant cells
Specialised Cells and Their Functions
One cell, one job – how structure links to function | AQA GCSE Biology 4.1.1.3 & 4.1.1.4
8 slides

Specialised Cells and Their Functions

By BA Library

Biology · GCSE · AQA

How cells differentiate and specialise, with examples from across the body.

Not used yet