BIOL 1521 Lecture Notes - Lecture 99: Alkaloid, Auxin, Caffeine
Document Summary
Used abridged lo and module 5 lo (new versions) Most devastating extinction was end-permian extinction (largest mass extinction) Caffeine is an alkaloid - similar to other alkaloid drugs. Circ system bc blood vessels are constricted. Caffeine: no addiction but produces withdrawal effects. Mimics sympathetic nervous system --> increases production of epinephrine. Caffeine inhibits camp breakdown, prolonging its effect on cardiac muscle --> caffeine inhibits pde, phosphodiesterase. Sleepiness is the result from buildup of adenosine cocaine. Dopamine cannot be taken up by presynaptic neuron bc dopamine blocks it.