WA4.BIO-208 - BIO-208 Assignment WA4-PROTEINS 1 The Science of Nutrition(BIO-208 Week(WA4 Assignment(Proteins Thomas Edison State College Dr

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BIO-208 – Assignment: WA4- PROTEINS 1 The Science of Nutrition (BIO-208): Week (WA4) – Assignment: (Proteins) Nov 22, 2011 Thomas Edison State College Dr. Stephen Glass
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BIO-208 – Assignment: WA4- PROTEINS 2 Describe the processes involved in cellular protein synthesis. How would synthesis be affected by intake of an otherwise adequate diet that is very low in glycine or low in tryptophan? How would synthesis be affected by a diet that is low in energy? Protein Synthesis and Importance of Essential Amino Acids As Well As Energy Sources To understand the process of ‘protein synthesis’ we need to concentrate over ‘central dogma of molecular biology’. According to the book Understanding Nutrition (p.180) Transforming the information in DNA into the appropriate sequence of amino acids needed to make a specific protein requires two major steps. In the first step, a stretch of DNA is used as a template to make a strand of RNA (ribonucleic acid) known as messenger RNA. Messenger RNA then carries the code across the nuclear membrane into the body of the cell. (p.180) Instructions for protein synthesis are provided by genes (segment of DNA) as genes determine the arrangement of amino acid sequence. Hence, we can say here that instructions for protein synthesis are transmitted at conception stage when an individual could receive genetic information from his parents. Because this genetic information is filed in DNA (with in nucleus of every cell)
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BIO-208 – Assignment: WA4- PROTEINS 3 and this DNA molecule makes m-RNA strand to further transfer this information as it cannot leave the nucleus. m- RNA carries the code across nuclear membrane to the cell’s body. Where it gets attach to ribosome that is composed of r-RNA and proteins. On ribosome it gives instructions to t RNA so that they could bring required amino acids one by one for their attachment in a particular sequence on
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This note was uploaded on 03/04/2012 for the course BIO 208 taught by Professor Steve during the Winter '11 term at Thomas Edison State.

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WA4.BIO-208 - BIO-208 Assignment WA4-PROTEINS 1 The Science of Nutrition(BIO-208 Week(WA4 Assignment(Proteins Thomas Edison State College Dr

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