3.3 Plant disease (biology only)

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Question 1
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Figure 1 shows an Aloe vera plant, which lives in dry, arid environments.

An Aloe vera plant with thick, fleshy green leaves that have small, sharp, spike-like teeth running along their outer edges.

a.

State one adaptation of the leaves shown in Figure 1 that helps to protect the plant from being eaten by animals.

[1]
b.

When damaged, Aloe vera produces a bitter sap that makes herbivores unwell. What type of defence mechanism is this? Choose from: Chemical, Mechanical, Physical.

[1]
c.

The leaves of the plant are made of different tissues working together. What name is given to a group of tissues working together to perform a specific function?

[1]
d.

Name the tissue that transports dissolved sugars from the leaves to other parts of the plant.

[1]
e.

Name the tissue that transports water and mineral ions through the plant.

[1]

3.3 Plant disease (biology only) Questions

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