BSC-1005 Lecture Notes - Lecture 7: Protein Quality, Endosperm, Fertile Crescent
26 Sep 2016
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75% of our calorie intake comes from corn, wheat, potatoes, and rice: cereal grains include the grasses wheat, rice, corn. A. 1. have a kernel, the fruit (ovary wall) A. 1. c) bran, the seed coat (protein + vitamins) germ, the embryo (protein + vitamins) endosperm, the rest (carbs) A. 3. white flour + white rice are made from removal of bran and germ whole wheat is the entire seed and has more nutrients: rice, wheat, corn have enough for our survival. B. 3. just low quality proteins beans have better quality protein potatoes don"t have enough good proteins for survival alone! Ii. crop domestication began around the same time in several different places 8k-10k yrs ago b/c of earth warming after ice age: middle east = wheat; central + northern south america = corn, beans; A. 1. fertile crescent = where wheat was grown, as well as barley, peas: occurred mainly by accident by seed dispersal when we gathered crops.
