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science
plant process questions
Question | Answer |
---|---|
List one example of an internal stimulus and one example of external stimulus | internal stimulus: hormones external stimulus: touch, light, gravity |
Compare and contrast photoperiodism and phototropism. | photoperdism: is the response to darkness phototropism: positive response to light. |
List the five main types of hormones in plants how they help determine how plants grow. | Ethylene: stimulates the ripening process Auxin: exhibits positive response to light Gibberellins: stimulates the stem to grow and seeds to germinate. Cytokinins: promote growth by faster cell division. Abscisic Acid: stops seeds and buds from growth. |