â¢ A red blood cell circulates around your body in about 20 seconds. The same red blood cell makes tens of thousands of trips around your body, transporting oxygen to cells, before it is recycled by your own immune system. â¢ Red blood cells in humans are molecularly quite similar to chlorophyll cells in plants.
Lysergic Acid Diethylamide (LSD) Lysergic acid diethylamide (LSD), also known as acid, belongs to a class of drugs known as hallucinogens, which distort perceptions of reality. LSD is the most potent mood- and perception-altering drug known: doses as small as 30 micrograms can produce effects lasting six to 12 hours.
LSD stands for  lyserg saeure diaethylamid  in the original German. In English, it is called lysergic acid diethylamide. Dr. Albert Hofmann, a Swiss chemist looking for a new headache treatment, first produced LSD in 1938. He first developed lysergic acid, a derivative of ergot, a fungus that grows on the rye plant. dose the size of a grain of salt can cause effects. LSD inhibits the movement of serotonin in the brain, which influences mood. LSD seems to work in the cerebral cortex of the brain, which is involved in mood, thought, and perception, and in the locus ceruleus of the brain, which coordinates sensory perceptions.