Biology

Biology

GCSE Biology (Science) learning topics and material for students in Year 7 to Year 11.

46 topics
Protist and Bacterial Diseases
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Protist and Bacterial Diseases

Diseases caused by protists and bacteria are typically spread in a few different ways. Bacteria are tiny organisms that can multiply quickly and cause infections by producing toxins or damaging cells. Protists are single-celled organisms that can cause diseases such as malaria or amoebic dysentery.

Enzymes and Digestion Revision Notes: Biology

Enzymes and Digestion Revision Notes: Biology

Have you ever wondered how the food you eat gets broken down and processed by your body? Well, it's all thanks to digestive enzymes. Enzymes are produced by various organs in the body, including the salivary glands, stomach lining, and pancreas. They work together to break down the food we eat.

by Kristina & Ben
Enzymes

Enzymes

Enzymes are essential for life. The body contains dozens of different types of enzymes. They are responsible for speeding up chemical reactions inside your body.

Cancer
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Cancer

Cancer develops due to abnormal cell growth and the division of cells. These cellular modifications result in a solid mass (tumour) made up of these abnormal cells. It's important to note that not all tumours are cancerous, they can either be benign or malignant.

Communicable Disease
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Communicable Disease

Communicable diseases are illnesses caused by infectious agents like bacteria, viruses, parasites, or fungi that can be spread from one person to another, either directly or indirectly.

Health and Disease

Health and Disease

Poor health can be caused by diseases. Often, different diseases interact, and this can lead to further health complications that don't seem related at first.

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