GCSE level School biology revision notes: PLANT DISEASES - symptoms, causes & prevention

Use the page sub-index, take time to study the content or [Use the website search box] re-edit 21/04/2023

PLANT DISEASES and defences against pathogens and pests

including nutrient deficiency, the spread and analysis of diseases and the reduction and prevention of plant diseases

Doc Brown's biology exam revision study notes

 This page will help you answer questions such as ...   How do plants protect themselves from pathogens?   

What chemical defences can plants employ?   

What physical defences do adapted plants have?   

What methods are used to detect plant diseases?


tar spot fungal disease a plant pathogenSub-index for this section on plant diseases

(1) Introduction to plant diseases

(2) A plant's natural physical & mechanical defences against diseases

(3) A plant's natural chemical defences against disease

(4) Examples of plant diseases and how they are spread

(5) The control, reduction and prevention of plant diseases

(6) Detection and analysis of plant diseases or nutritional deficiencies

(7) Mineral nutrient deficiency in plants and its consequences

See also action and uses plant hormones communicable diseases  and  non-communicable diseases


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See also action and uses plant hormones  communicable diseases    and    non-communicable diseases


 General PLANT BIOLOGY revision notes

Photosynthesis, importance explained, limiting factors affecting rate, leaf adaptations 

Plant cells, transport and gas exchange in plants, transpiration, absorption of nutrients, leaf and root structure

See also Diffusion, osmosis, active transport, exchange of substances - examples fully explained

Respiration - aerobic and anaerobic in plants (and animals) 

Hormone control of plant growth and uses of plant hormones 

Plant diseases and defences against pathogens and pests 

See also Adaptations, lots explained including plant examples 

and a section on Stem cells and uses - meristems in plants


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