BIOA02H3 Lecture Notes - Lecture 11: Kalahari Desert, Caffeine, Kohlrabi
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BIOA02H3 Full Course Notes
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From tree to seed: transport in plants, plant nutrition and soils, plant defense, plant life on the edge. Lecture 11 notes (plant defense: plants feed the world, but they do not really want to do so . Primary compounds-products of photosynthesis, protein synthesis such as carbohydrates, proteins, starches, cellulose. Simple essential to normal cellular function and life in general. Secondary compounds: products have no known direct function in basic metabolism: huge complexity of compounds, strict control of syntheiss, chemical weapons agaisnt herbivores include toxins: saponine, cyanide, atropine, strychinine, caffeine, cannabinol, mustard oil, morphine, quinine. Defense mechanism can be systemic-always present or induced-sometimes present. There are 4 types of defense mechanism: systemic physical. Trichomes: hair to prevent exposure to usn, used against herbivore. Lithops. -pebble plants in kalahari desert making them hardly eaten. They are filled with water and more apparent after rain when the flower shows.
