Word: celle
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Sometimes, for reasons which medicine does not yet understand, a cell turns out to be different from normal cells. Most such "mutations," less competent than the normal cells, die and are absorbed by the body. But occasionally a variant cell appears that is disastrously competent...
...Nazis were rather like cancer," says Rhoads, growing philosophical as all scientists are apt to do when they think about cancer. "Starting with a variant cell, Hitler, the Nazis multiplied throughout the German nation, bringing it to destruction. It took external forces to kill the Nazi cancer...
...Cell City. Long-range figuring-out is the duty of such men as Dr. George B. Brown, head of the Protein Chemistry Division. Dr. Brown and his assistants are studying the chemistry of both normal and cancer cells, looking for differences that they may exploit...
...Cell chemistry is a maddeningly complicated study. It is known that cells contain certain chemicals, but they are not mixed together haphazardly like dissolved salts in a chemist's beaker. Each cell is like a great, complex metropolis. The individual citizens (atoms) are organized into intricate groups like the people of the city. Some groupings (e.g., the three-atom molecule of water) are as small and tight as families. Others are larger, like all the workers in one factory. The various groups interact constantly, their links forming and dissolving as the cell lives and grows. Certain single large molecules...
...most rudimentary understanding of the workings of the living, changing cell is enormously difficult. It would be even harder without a new tool: nitrogen 15, a stable (nonradioactive) isotope of nitrogen. Chemically, nitrogen 15 is exactly like the common nitrogen 14. The cells cannot tell the difference. But since it is slightly heavier, nitrogen 15 can be measured accurately by a balky and expensive instrument called a mass spectrometer. If compounds containing nitrogen 15 instead of ordinary nitrogen are fed to cells, the scientists can tell with the mass spectrometer whether the cells have accepted them as food...