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Essay on Workings of the Circadian Clock

Assignment id 1014397
Discipline Biology
Assignment type Essay
Words 1530
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Introduction Understanding the association between an individual's predestined cellular clock along with the subsequent genes in charge of this clock is extremely intricate. But, research being conducted at the University of Pennsylvania using Drosophila may offer insight into the individual circadian rhythm. Several biological organisms, including eukaryotic and prokaryotic, function based on an endogenous system that regulates cellular processes related to time. This system can be known as the circadian clock or circadian rhythm which is mainly reliant upon genetic expression but can be influenced by additional elements. These variables, frequently called zeitgebers (time givers), are exogenous determinants which can potentially alter the rhythm of the circadian rhythms that normally operates within a approximate twenty five hour period. The strongest zeitgeber is light exposure, which may drastically transform the circadian clock of an individual organism and plays a substantial role in establishing the initial cycle. There are other zeitgebers which affect the circadian clock also, including temperature, societal interactions, philosophical manipulation, and eating patterns (1); the possibility of a specific zeitgeber to alter the circadian clock differs from organism to organism. The circadian system is essential in keeping the organism’s homeostatic state; it is included in cellular respiration in animals and photosynthesis in plants too. They are essential for setting sleeping patterns in animals, cellular division, as well as the activation/inhibition of hormones and other cellular structures. The circadian clock is found in the hypothalamus of mammals, especially from the suprachiasmatic nucleus (SCN). W.. .

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