Organisation of the body Essay Example | Topics and Well Written Essays - 1750 words

Organisation of the body - Essay Example It has several functions, including; the control of DNA replication and gene expression, prevention of damage to DNA, enhancing mitosis by strengthening DNA, and packaging DNA strands to fit in nucleus (Lloyd & Beck, 2012: p27). This entails a network of membranes or tubes that connect the cellular membrane to the nuclear envelope. Involved in the metabolism of steroids and carbohydrates, synthesis of steroids and lipids, and receptor attachment on proteins of the cell membrane (Lloyd & Beck, 2012: p41). This is an endoplasmic reticulum studded on the outer surface with attached ribosomes, compared to SER that have none. These ribosomes manufacture proteins and deposit them in the lumen of the RER, after which they are transported as vesicles to the Golgi complex (Lloyd & Beck, 2012: p41). A stack of flattened compartments or sacs that receive proteins from the RER, which is crucial in the transport and modification of proteins. It is involved in the modification, packaging, and export of proteins to other cell organelles, such as the mitochondria, or for secretion by the cell (Lloyd & Beck, 2012: p43). They are tail-like projections found in prokaryotes and eukaryotes and protrude from their cell body. They are longer than cilia, but fewer in number, and their major function is locomotion through whip-like movements that propel the cell through liquid matter (Lloyd & Beck, 2012: p32). These are peanut-shaped organelles with double membranes, whereby the inner membrane is folded to form cristae. Aerobic cellular respiration occurs here, as well as the breakdown of sugar molecules for production of energy in the form of ATP (Lloyd & Beck, 2012: p19). This is a large, oval organelle, which has at least one nucleolus and contains DNA. It also holds the cell’s hereditary material. Its main function is to control the activities of the cell, particularly with regards to reproduction,

Analyzing two critiques of one piece of art Essay

Analyzing two critiques of one piece of art - Essay Example Here, the main focus of the author’s argument is on the sensuality principle and especially that of the female persona in influencing selling strategies and in attracting, influencing and sustaining interactions at public gatherings1. In the second article on Manets Bar at the Folies-Bergà ¨rese is titled â€Å"Manets Un bar aux Folies-Bergere as an Allegory of Nostalgia.†As the title suggests the interpretation and critic on the same piece of painting is centered on the nostalgic memories it evokes. The author seems to be keen to part from the prevailing analysis of the painting which â€Å"canonized† it based –ironically and heavily-on its unrealistic visual contradictions and ambiguities as opposed to the more obvious clarity of its content2. The author therefore attempts to embrace the complete scene of the Folies-Bergà ¨rese as set of multiple views and states of mind. The focus and therefore the purpose is to resolve the most controversial and ambiguous elements of the painting therein provide a narrative evaluation that previous art critics, scholars and enthusiasts alike have failed to. He achieves this by first beginning with a critique of evaluations by other authors on Manet’s Bar at the Folies-Bergà ¨rese(such as those of Hans Jantzen) and thereby examining the source and direction of the painter’s inspiration in the development of the piece. The author prevails in asserting that the value of making such grandeur pieces was not just for sale at exhibitions but in form of the industrial goods displayed in them similar to the advertising of departmental stores and commercial enterprises through them. The former, identifies the author, diminishes the perception of art within the public domain to a level similar to that of shelved domestic goods3. This close association between commercial entities and large-certainly influential-artwork of the time is replicated in other stores and as such