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Sink or Source ?
Sink or Source ?
Sink or Source ?
Sink or Source ?
Sink or Source ?
Sink or Source ?
Example of starchy food..
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?
Sink or Source ?
Almost pure fructose
Honey
Sugarcane
Polynesia
Columbus, 1500s
At first Europeans used sugar as a medicine…
But later used it as flavoring…….
Due to water pollutionEuropeans needed to boil the water
Tea drinkers
The drug "Ecstacy" stimulates serotonin producing cells, which
stimulates the areas of the prefrontal cortex that give feelings
of euphoria and mood enhancement.
Serotonin PathwayThe anti-depressant Prozac increases serotonin levels byreducing loss of it by the body
12 million African slaves brought to theCarribean to work in sugarcane fields
…..most died within 10 years
Napoleon BonaparteEmperor of France
..early 1800s
Sugar Beet
…grows in temperate climates!
High Fructose Corn Syrup
40-160 lbs of sugar per year = 50-200 grams per day !
An Orange = 11 grams of sugarAn Apple = 12 gramsA Peach = 8 grams
Diet soda is no better.
….studies with teenage girls have shown
that it only encourages caloric intake….
Sugar consumption often goes hand-in-hand with consumption of fats, which makes the situation even worse
New USDA Diet Recomendations
Chapter 38 - Plant Nutrition
p. 782
Plants take up whatever mineral elements are in the soil…
Plants take up whatever mineral elements are in the soil…
Some plants are “hyperaccumulators” of minerals….
Lead …pollution near highwaysCadmium …pollution near factoriesStrontium …..can be radioactive (Chernobyl)Selenium ….LocoweedGold …..used to locate gold deposits
100x soil concentrations…
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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