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11 Cards in this Set
- Front
- Back
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What is a tropism? |
The growth or movement in a plant |
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What is a positive Tropism? |
A move towards a stimulus |
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What is a move away from a stimulus? |
Negative tropism |
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What will a plant always do? |
Grow towards or away from a stimulus |
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How does a plant grow upwards? |
Gravity produces an unequal distribution of axing in the tip when the shoot is growing sideways. With more auxin in the lower part it cause the lower side to grow faster bending the shoot upwards |
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What is auxin? |
A plant hormone that controls the growth near the tips of shoots and roots |
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What does auxin control? |
Auxin controls the growth of a plant in response to light, gravity, and water |
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What will happen if the plants shoot is removed? |
It may not survive because no auxin is available |
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How does a plant capture more sunlight? |
When the light shines down on a plant, the auxin elongates on the shaded part so the plant moves towards the sun capturing more light for photosynthesis |
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Why is auxin used as a weed killer? |
Because it causes the weed to grow to quickly and die. |
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What is rooting powder? |
Rooting powder contains growth hormones to make the stem cuttings quickly develop roots. |
