Unit 1 End of unit questions 1.1Questions Copy and complete these sentences using words from the list. You may use each word once, more than once or not at all. air flowers organ systems
food ground leaves reproduction roots water
organs
Roots, leaves, stems and flowers are found in plants. Roots absorb ............................... and help to hold the plant in the ............................... . Leaves are where the plant makes its ............................... . Flowers are for ............................... . The stem holds the ............................... and ............................... above the ground. 1.2
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The diagram shows an organ system in a person. C
A
B
a Name this organ system. b Name the organs labelled A, B and C. c What is the function of this organ system? Choose from these answers: t t t t 1.3
providing energy for the body by respiration breaking down food into small particles that can be absorbed transporting food to every part of the body helping different parts of the body to communicate with each other.
Plant stems can bend. This helps to stop them breaking when strong sideways forces act on them, such as a strong wind. Anji did an experiment to compare how much stems from different plants bend when the same force is applied to them. She cut pieces of stem from three different plants, P, Q and R. She chose stems that all had the same diameter.
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1 Plants and humans as organisms
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