Title: Sink or Source ?
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2Sink or Source ?
3Sink or Source ?
4Sink or Source ?
5Sink or Source ?
6Sink or Source ?
7Sink or Source ?
Example of starchy food..
8Sink 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?
9Honey
Almost pure fructose
10Sugarcane
11Polynesia
12Columbus, 1500s
13At first Europeans used sugar as a medicine
But later used it as flavoring.
14Due to water pollution Europeans needed to boil
the water
Tea drinkers
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16The 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.
1712 million African slaves brought to
the Carribean to work in sugarcane
fields ..most died within 10 years
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19Napoleon Bonaparte Emperor of France ..early
1800s
Sugar Beet
grows in temperate climates!
20High Fructose Corn Syrup
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2240-160 lbs of sugar per year 50-200 grams per
day !
23An Orange 11 grams of sugar An Apple 12
grams A Peach 8 grams
24Diet soda is no better. .studies with teenage
girls have shown that it only encourages caloric
intake.
25Sugar consumption often goes hand-in-hand with
consumption of fats, which makes the situation
even worse
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28New USDA Diet Recomendations
29Chapter 38 - Plant Nutrition
30p. 782
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32Plants take up whatever mineral elements are in
the soil
33Plants 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
34Plants 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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