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16 Cards in this Set
- Front
- Back
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describe the direcion that shots grow in, relating to the things that they are sensitive to. |
shoots are sensitive to light, they grow toward light. |
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describle the direction that the roots grow in, relating to the things that they are sensitive to. |
roots are sensitive to gravirty they grow towards the force of gravity. |
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what is the name of a plant hormone ? |
auxin |
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what is phototropism ? |
plants grow response to light. |
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decsrible how auxin controls phototroprism |
cause cell elongaion in the shoot |
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what is geotroprism |
plants growth response to gravity |
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what do negative and posative tropisms mean? |
posative troprism - towards the sitmulus . negative troprism-away from the stimlus |
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decrible how auxin control geotroprism |
stops cells elonagation in the root |
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how can plants growth hormones be used in stimlus |
selective weed killers - auxin makes broad leaved plants grow ou of control and die.rooting powder- auxin makes cuttings develop roots quickly.seedless fruit- flower sprayed with hormones to make fruit develop but not seeds.friut ripping - framers use hormones to control fruit ripening |
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what is thaildomide |
a drug that was used in the 1950s to aidwith morning sicknessit cause deformities in the limbs of unborn babies. |
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what was thaildomide banned |
because it caused deformities |
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What impact can the misuse of drugs have on the body? |
It can lead to dependency and addiction as well as mental and physical health issues also linked to social issues |
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Why is the overall impact of legal drugs much greater than illegal drugs?
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Millions more people use legal drugs like tobacco and alcohol so the impact is much bigger.
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What is addiction?
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The body can’t function properly without the drug.<?xml:namespace prefix = o />
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What is withdrawal?<?xml:namespace prefix = o />
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The symptoms people feel when they stop using drugs, pain, cravings, sweating ect.
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Athletes are banned from using drugs to enhance their performance. What are the impacts of the Anabolic Steroids.
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Muscle growth, change in sexual characteristics and increased aggressive behaviour.
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