classroom search. leaf specialization some leaves have specializations that protect the plant ex....
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CLASSROOM SEARCH
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Leaf Specialization
Some leaves have specializations that protect the plant
Ex. The tobacco plant contains nicotine which repels herbivores. Cactus leaves no longer preform photosynthesis but protect the plant from being eaten
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Leaf Specialization
Some leaves have specializations that allow them to fall off
• Ex. In Canada the leaves fall off trees in order to conserve water and nutrients during the winter
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Leaf Specialization
Some leaves produce chemicals that prevent their cells from freezing
• Ex. Needles on a pine tree. They are needle shaped to help them shed snow more quickly
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Leaf Specialization
Some leaves have specializations that allow them to store water
• Ex. The leaves of the jade plant have adapted fleshy leaves that store water in the dry climate
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Stem Specialization
Some stems are specialized to store water or carbohydrates
• Ex. The cactus stem highly modified to store water
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Stem Specialization
Stems protect the plant from injury
•Ex. Thorns on the hawthorn tree deter herbivores
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Stem Specialization
Some steams grow underground and are modified to store food and water. They can also rise to a new plant
• Ex. Potatoes, onions
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Stem Specialization
Some steams grow along the soil instead of upright.
• Ex. Vines use other objects to raise their leaves up to the sunlight
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Root Specialization
Some roots have a mutualistic relationship with fungus and bacteria.
• Nitrogen fixing bacteria converts nitrogen from the air and converts it into a form the plant can use. In return the bacteria receives carbohydrates from the plant
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Root Specialization
Some roots use other plants grow
• The strangler fig seed is left in the branches of another tree. The roots grow down the tree, using the tree for nutrients and water. The roots eventually reach the ground and strangle the life out of the other tree
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Root Specialization
Tuberous roots are lateral roots that have been specialized to store carbohydrates. These roots are at a higher risk of being eaten so they have developed protection.
• Ex. Cassava root contains a deadly toxin which can be soaked out in water for human consumption
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Root Specialization
Some roots produce toxins that harm other plants
•Ex. The black walnut secretes a toxin that inhibits plant growth
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