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”