Response to stimuli multiple choice questions

Response to Stimuli

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The following passage outlines the process of phototropism in plants:

'Auxin is synthesised in cells at the ............ of the shoot. Auxin causes the cells to ............ on one side, so the stem bends.

Scientists originally thought auxin was ............ by light but this was disproved by the fact that plants growing in the dark and plants growing in unilateral light had ............ auxin levels.'

What is the correct sequence of missing words?

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Which statement provides evidence for geotropism?

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What determines the direction of a taxis in motile organisms?

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How do single-celled algae respond to light?

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Why is positive phototaxis beneficial to single-celled algae?

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What is the main difference between taxes and kineses as responses in organisms?

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Which of the following is an example of a negative taxis?

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What kind of movement do earthworms exhibit when they experience light?

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What type of taxis do bacteria exhibit when moving towards a higher concentration of glucose?

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In a kinesis, what happens to the rate of turning when an organism encounters a favourable environment?

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Why might woodlice move more slowly in damp conditions?

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When are woodlice more likely to change direction rapidly?

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