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Bell Activity

21 st October 2010. Plant Growth. Bell Activity. In your books, write down: Why you think plants grow. How you think plants grow. 21 st October 2010. Plant Growth. By the end of this lesson you will be able to… Define phototropism and geotropism. Explain the role of auxin.

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Bell Activity

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  1. 21st October 2010 Plant Growth Bell Activity • In your books, write down: • Why you think plants grow. • How you think plants grow.

  2. 21st October 2010 Plant Growth • By the end of this lesson you will be able to… • Define phototropism and geotropism. • Explain the role of auxin. • Demonstrate knowledge of plant hormones • TIB – basis of understanding of gardening and agricultural techniques.

  3. Stimulus Response Tropism

  4. Geotropism

  5. Phototropism

  6. Plant Hormones • A hormone is a chemical messenger, it causes changes in how a plant or the body of an animal works. • Plants release chemicals which control the tropisms. The best known of these 'plant hormones' are the "auxins". • The auxins are released from the very tips of the shoots or roots.

  7. Comic Strip Your comic strip must: • Show one type of tropism on each line. • Give reasons why that tropism type is necessary. • Say where auxin is produced. • Use colour.

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