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Sink or Source ?

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Plants take up whatever mineral elements are in the soil Some plants are hyperaccumulators of minerals . These plants can be useful in phytoremediation ... – PowerPoint PPT presentation

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Title: Sink or Source ?


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Sink or Source ?
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Sink or Source ?
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Sink or Source ?
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Sink or Source ?
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Sink or Source ?
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Sink or Source ?
Example of starchy food..
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Sink or Source ?
Animals eat fruit as the primary source of
natural sweetness.. If an animal is looking for
an alternative source of sugar where would they
look?
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Honey
Almost pure fructose
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Sugarcane
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Polynesia
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Columbus, 1500s
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At first Europeans used sugar as a medicine
But later used it as flavoring.
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Due to water pollution Europeans needed to boil
the water
Tea drinkers
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The anti-depressant Prozac increases serotonin
levels by reducing loss of it by the body
Serotonin Pathway
The drug "Ecstacy" stimulates serotonin producing
cells, which stimulates the areas of the
prefrontal cortex that give feelings of euphoria
and mood enhancement.
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12 million African slaves brought to
the Carribean to work in sugarcane
fields ..most died within 10 years
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Napoleon Bonaparte Emperor of France ..early
1800s
Sugar Beet
grows in temperate climates!
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High Fructose Corn Syrup
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40-160 lbs of sugar per year 50-200 grams per
day !
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An Orange 11 grams of sugar An Apple 12
grams A Peach 8 grams
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Diet soda is no better. .studies with teenage
girls have shown that it only encourages caloric
intake.
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Sugar consumption often goes hand-in-hand with
consumption of fats, which makes the situation
even worse
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New USDA Diet Recomendations
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Chapter 38 - Plant Nutrition
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p. 782
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Plants take up whatever mineral elements are in
the soil
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Plants take up whatever mineral elements are in
the soil
Some plants are hyperaccumulators of
minerals. Lead pollution near
highways Cadmium pollution near
factories Strontium ..can be radioactive
(Chernobyl) Selenium .Locoweed Gold ..used
to locate gold deposits 100x soil
concentrations
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Plants take up whatever mineral elements are in
the soil
Some plants are hyperaccumulators of minerals.
These plants can be useful in phytoremediation
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