Lecture 1 notes
Lecture 1 notes LSM1401
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This 2 page Class Notes was uploaded by HAN ZIXUAN on Saturday October 31, 2015. The Class Notes belongs to LSM1401 at National University of Singapore taught by Jayaraman Sivaraman in Fall 2015. Since its upload, it has received 29 views. For similar materials see Fundamental of biochemistry in Biology at National University of Singapore.
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Date Created: 10/31/15
Lecture1 Brief Notes Eukaryotic cells amp Prokaryotic cells Science is to know Scientific knowledge can be obtained through conducting systematic experiments and analysis Engineering is to make and is the application of science to invent and improve new findings Technology is to use the engineering and scientific findings for practical purposes Biochemistry is the chemistry of organic molecules from living systems which involves aqueous reactions aqueous means containing water Although biochemical reactions occur at mild conditions they cause extreme chemical changes 99 of the human body consists of oxygen carbon nitrogen calcium and phosphorous Less than 1 consists of several elements All of them are essential for life A cell consists of 70 water 15 proteins 10 lipids and less than 1 sugars Enma typical nallla animal nall aantrinlaa nentrnanm a b g Plant and animal cells are eukaryotic cells Bacteria are examples of prokaryotic cells Prokaryotes eg bacteria were the only form of life in the earth for millions of years Later on the more complicated eukaryotes evolved The main difference between eukaryotes and prokaryotes Endoplasmic reticulum ER nucleus membrane mitochondria and Golgi apparatus are present in eukaryotes whereas these are all absent in H CE proka ryotes wall Eukaryotic cells are bigger in size tha n proka ryotes nuclanlua quotan mmnaamaa bactar39la nall manning type Gnlgi cam plaa cell wall an mmnanma 39 v plaamnnaama rinnanmaa plasma membrane v fr aapaula Itquot I L 39 l lagalla lE E E l l lrE El 2010 Encyclnpaedia Britannica Inc Larger biological systems are assembled from smaller components Molecules organelles cells tissues organs organism Bioengineering is the application of engineering methods on biological ndings or the translation of scienti c ndings into applications Biotechnology has a wide range of applications in agricultural medical clinical diagnostic therapeutics and environmental sectors Beer is an example of an ancient biotechnological product Genetically modi ed organisms GMOs help produce huge amounts of biotech products Several mega countries use a large proportion of its land for the biotech crop production Drugs from the results of biotech research form the major component of pharmaceutical market
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