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WorksheetsPlant disease
Total questions: 10
Worksheet time: 2mins
What type of disease is tobacco mosaic?
Fungal
Viral
Bacterial
Deficiency
Which plants are mainly affected by tobacco mosaic?
Tomato
Chrysanthemum
Tobacco
Lettuce
How can plant diseases be identified?
Microscopy
Monoclonal antibodies
DNA testing
How does TMV spread through a plant?
The xylem
The phloem
The plasmodesmata
Why do plants infected with TMV have stunted growth?
TMV kills new cells
TMV causes water loss, causing the plant to shrink
The plant is unable to photosynthesise
How can TMV infection be prevented?
Keeping plants in a sterile environment
Using insecticides
Minimising contact
Using antibacterial sprays
Antibiotics can be used to treat what type of infection?
Fungal
Viral
Bacterial
Which of these fungicides is used to treat black spot?
Mefenoxam
Tebuconazole
Captan
Mancozeb
What defensive strategy does this plant use?
Mimicking
Poison
Thorns
Closing leaves
Why is the insecticide DDT rarely used?
It is ineffective.
It is expensive.
It poses a risk to human health.
It reduces biodiversity.
