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TMV — AQA GCSE Combined Science Trilogy Definition | GradeGen

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Combined Science
Key terms
TMV

GCSE Combined Science · key term

TMV

Definition

Tobacco mosaic virus: a plant pathogen that causes a mosaic pattern of leaf discolouration, reducing photosynthesis and growth.

Used by AQA

How each exam board covers it

AQA GCSE Combined Science Trilogy · 8464

Specification 4.3.1.2 · Paper 1

Tobacco mosaic virus (TMV) is a widespread plant pathogen. Despite its name, it affects many plant species, including tomatoes, not just tobacco plants.
Revise: Viral diseases

AQA Combined Science Trilogy past papers

Exam tips

1
For TMV, link leaf discolouration to reduced photosynthesis, less glucose production and reduced growth.

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