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Worksheets9-1 Plant defences
Total questions: 10
Worksheet time: 7mins
What covers leaves and stems of most plants acting as a physical barrier to stop pathogens entering?
(a)
What term describes passion flowers having small yellow spots on its leaves that look like the eggs left behind by butterflies?
(a)
The presence of large thorns on roses is what type of defence?
Chemical
Mechanical
Physical
Mimicry
The plant cell has a cellulose cell wall which acts as another barrier against infection. Identify this type of defence.
Physical
Chemical
Mimicry
Mechanical
What type of chemicals are produced by plants such as mint and witch hazel produce to limit the spread of bacteria?
(a)
Identify the type of defence provided by the berries of the deadly nightshade plant.
Mechanical
Chemical
Physical
Mimicry
Some plants droop or curl when animals touch them - identify this type of defence.
Chemical
Physical
Mechanical
Mimicry
State the term for animals that only eat plants
(a)
State the term for an insect that eats plants useful to humans
(a)
The outer bark of trees is what type of defence?
(a)
