Lecture Connections 26 | RNA Metabolism

... CHAPTER 26 RNA Metabolism Key topics: – Transcription: DNA-dependent synthesis of RNA – Capping and splicing: RNA processing Overview of RNA Function • Ribonucleic acids ... rRNAs) • RNA polymerase II is responsible for synthesis of mRNA – Very fast (500 – 1000 nucleotides / sec) – Specifically inhibited by mushroom toxin -amanitin • RNA polymerase III makes tRNAs ... some sm...

Ngày tải lên: 15/06/2017, 20:48

... CHAPTER 25 DNA Metabolism Key topics: – DNA replication – DNA repair – DNA recombination What is DNA Metabolism? • While functioning as a stable storage of genetic information, the structure of DNA ... DNA molecules giving offspring a novel DNA • DNA metabolism consists of a set of enzyme catalyzed and tightly regulated processes that achieve these tasks The Substrate...

Ngày tải lên: 15/06/2017, 20:47

... CHAPTER 27 Protein Metabolism Key topics: – The genetic code – Synthesis of aminoacyl-tRNA – Translation: RNA-dependent protein synthesis Protein Synthesis is a Very Complex ... additional protein factors for initiation, elongation, and termination of translation • Involves perhaps 100 additional enzymes that carry out a variety of modifications with many proteins Protein ... Hy...

Ngày tải lên: 15/06/2017, 20:49

... GENES are long strands of DNA on chromosomes  What is DNA? DNA is the genetic code,  Instructions for heredity,  Components of genes,  Director of protein synthesis   AND- DNA is also A type ... ribosomes  DNA and protein synthesis, then, happens this way:  DNA sequence codes (how letters are put together) produce messenger RNA sequence codes  The messenger RN...

Ngày tải lên: 13/03/2014, 16:36

... CHAPTER 10 Lipids Key topics: – Biological roles of lipids – Structure and properties of storage lipids – Structure and properties of membrane lipids – Structure and properties of signaling lipids Lipids: ... Lipids • Based on the structure and function • Lipids that not contain fatty acids: cholesterol, terpenes, … • Lipids that contain fatty acids (complex lipids) – Stora...

Ngày tải lên: 15/06/2017, 20:40

... CHAPTER 13 Bioenergetics and Reactions Key topics: – Thermodynamics applies to biochemistry, too – Organic chemistry ... • Cleavage and formation of C–C bonds • Cleavage and formation of polar bonds • Nucleophilic substitution mechanism • Addition–elimination mechanism • Hydrolysis and condensation reactions • ... C-C bonds as shown above Nucleophiles and Electrophiles in Bi...

Ngày tải lên: 15/06/2017, 20:41

... CHAPTER 14 Glucose Utilization and Biosynthesis Key topics: – Harnessing energy from glucose via glycolysis – Fermentation under anaerobic conditions – Synthesis of glucose from simpler ... the polymeric form – Many organisms and tissues can meet their energy needs on glucose only • Glucose is a versatile biochemical precursor – Bacteria can use glucose to build the carb...

Ngày tải lên: 15/06/2017, 20:42

... CHAPTER 16 The Citric Acid Cycle Key topics: – Cellular respiration – Conversion of pyruvate to activated acetate – Reactions of the citric acid cycle – Regulation of the citric acid cycle – ... prosthetic groups are strongly bound to the protein In this case, the lipoic acid is covalently linked to the enzyme via a lysine residue The Citric Acid Cycle...

Ngày tải lên: 15/06/2017, 20:43

... anaerobic catabolism of fats Fatty Acids are Converted into Fatty Acyl-CoA Fatty Acid Transport into Mitochondria • Fats are degraded into fatty acids and glycerol in the cytoplasm • -oxidation of fatty ... Sources of ATP Oxidation of Monounsaturated Fatty Acids Oxidation of Polyunsaturated Fatty Acids Oxidation of Propionyl-CoA • Most dietary fatty acids are even-numbere...

Ngày tải lên: 15/06/2017, 20:44

... CHAPTER 21 Lipid Biosynthesis Key topics: – Biosynthesis of fatty acids and eicosanoids – Biosynthesis of triacylglycerols – Biosynthesis of fatty cholesterol Lipids Fulfill a Variety ... and acetyl-CoA – reducing power from NADPH – location: cytosol in animals, chloroplast in plants Lipid Catabolism and Anabolism in Animal and Plant Cells Overview of Fatty Acid Synthesis • Fatt...

Ngày tải lên: 15/06/2017, 20:46

... CHAPTER 28 Regulation of Gene Expression Key topics: – DNA elements that control transcription – Protein factors that control transcription – Lac operon as a model for regulation – Regulation of protein ... classes of promoters – Allows coordinated expression of different sets of genes • Binding other proteins (transcription factors) to promoters – These recognize prom...

Ngày tải lên: 15/06/2017, 20:50

... it rarely blocks Lecture2 6.doc Page (7) CSN200 Introduction to Telecommunications, Winter 2000 Lecture_ 26 Switching Time Division Switch: (circuit switching) With time division switching, the n ... space division switch Lecture2 6.doc Page (7) CSN200 Introduction to Telecommunications, Winter 2000 Lecture_ 26 Switching A Crossbar switch Space Division Switch: (circuit switching)...

Ngày tải lên: 10/12/2013, 08:15

... Investigating the role of menaquinone metabolism in dormant mycobacteria by antisense RNA Thomas M Fiedler (BSc.) A thesis submitted for the Degree of Master of Science in Infectious ... research focusing on the involved enzymes The focus of this study lies on the synthesis of the aromatic portion of menaquinone The synthesis of the specific...

Ngày tải lên: 08/11/2015, 16:46

... 26- 2 Learning Outcomes 26. 1 Describe the structure, location, and functions of the kidney 26. 2 Define the term nephron and describe its structure 26. 3 Explain how nephrons filter blood and ... reserv e d 26- 18 Urine Formation (cont.) • Urine composition – Mostly water – Urea and uric acid • Formed by the breakdown of proteins and nucleic acids – Trace amounts o...

Ngày tải lên: 09/11/2016, 17:09

... Earth’s hydrological cycle Fig 22.01 b Stephen Marshak Glaciers form where more snow accumulates in winter than melts in the summer Types of glaciers Fig 22.04 a W W Norton The Greenland ice cap… ... Aspects of global change How a glacier moves: Internal flow Cold glaciers Fig 22.08 b W W Norton How a glacier moves…basal slip Warm glaciers Fig 22.08 a W W Norton Integrated model of g...

Ngày tải lên: 29/11/2016, 22:58