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Learning objective

Describe tobacco mosaic virus as a widespread plant pathogen that affects many species including tomatoes.

Read the explanation, check the common trap, then practise with flashcards and questions.

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Topic

Communicable diseases

Subtopic

Viral diseases

Aqa Gcse BiologyInfection and response

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Quick explanation

Describe tobacco mosaic virus as a widespread plant pathogen that affects many species including tomatoes

  • This point belongs to Communicable diseases, especially Viral diseases.
  • You need to be able to describe tobacco mosaic virus as a widespread plant pathogen that affects many species including tomatoes.
  • The key ideas to know are plant, virus, and widespread.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

plantviruswidespreadmosaictobacco

Why it matters

This objective helps connect Viral diseases to exam-style questions, flashcards, and revision notes for Communicable diseases.

Quick student answer

How does tobacco mosaic virus work?

Direct answer

In Biology, this page helps you answer questions about tobacco mosaic virus within Communicable diseases. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are tobacco mosaic virus and plant pathogen.

Key terms

  • tobacco mosaic virus: A widespread plant pathogen that affects many species, including tomatoes, causing a mosaic pattern of leaf discolouration.
  • plant pathogen: An organism, such as a virus or bacteria, that causes disease in plants, leading to reduced growth and yield.

Common trap

Misidentifying the Pathogen: Focus on the characteristics that define tobacco mosaic virus, such as its viral nature and the specific symptoms it causes in affected plants.

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