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Plant Disease Questions

   1. Give an example of a physical barrier on a plant against infections 

 

   2. Give an example of a chemical barrier on a plant against infections

 

   3. True or false? Mineral ions and water are absorbed through the roots of a plant 

 

   4. What type of pathogen is Chalara ash dieback?

 

   5. True or false? nettles have evolved stings to prevent their leaves from being eaten

 

   6. State whether thorns on a rose bush is a chemical or physical defence?

 

   7. A shortage of magnesium mineral ions to a plant will result in...?

 

   8. Define a pathogen  

 

   9. True or false? The tobacco mosaic virus infects the ribosomes

 

   10. Foxgloves produce a toxic poison, is this a chemical or physical defence?