Principles of Organisation: Animal Tissues, Organs and Organ Systems

Biology · GCSE · AQA · 17 slides · Not used yet

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.

Slide 1 of 17

What’s in this lesson

1 The Hierarchy of Organisation Free to read
2 Key Words for Organisation Free to read
3 Building From Cells Upwards Free to read
4 The Digestive System
5 What the Digestive System Does
6 Enzymes
7 Three Types of Digestive Enzyme
8 Lock and Key Model of Enzyme Action
9 Enzymes and pH: A Practical
10 Bile: Made in Liver, Stored in Gall Bladder
11 Heart, Lungs and Blood
12 The Heart: A Double Pump
13 Lungs Adapted for Gas Exchange
14 Three Blood Vessels
15 Four Components of Blood
16 Coronary Heart Disease
17 Treating Cardiovascular Disease

Where this lesson came from

Drafted with BA Productivity’s AI lesson generator, then edited and published by Isabella Lassman. They confirmed they checked every slide and that it is theirs to share.

Always read a lesson through before you teach it.

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