PPT-Prokaryotic Gene Structure

Note that the ATG codon encodes both start and methionine Prokaryotic genes have a simple onedimensional structure 5 5 5 5 Start codon Stop codon ATG TAG ATG AAA. A. Introduction – There are multiple criteria by which you can classify an organism. 1. Metabolic Activities (Carbon, Energy & Oxygen sources). A) Recall that microbes may vary in their carbon & energy sources. OCR AS Biology. Unit 1: Cells, Exchange and Transport. Learning objectives. To understand and discuss the basis of cell theory based upon milestones in cell biology. To carry out practical work on cell size and magnifications using a light microscope. A. Generalized Structure. 1. Cell Appendages. A) Flagella. 1) Functions in movement of the cell. 2) 3 components. Prokaryotic Cell Structure. a) Filament . i) Whip-like, helical structure. b) Hook . i) Holds the filament. 2.2.1, 2.2.2: Ultrastructure of . E.coli. Mesosome. Plasmid. 2.2.3: Electron micrograph of . E.coli. Nucleoid region. cytoplasm. IB Question: . Draw and label a generalized prokaryotic cell as seen under the electron microscope. . Alexey Onufriev, . Virginia Tech. www.cs.vt.edu/~onufriev. Proteins play key roles in a living system. Three (out of many many) examples of protein functions. Catalysis:. Almost all chemical reactions in a living cell are catalyzed by protein enzymes.. A. Introduction – There are multiple criteria by which you can classify an organism. 1. Metabolic Activities (Carbon, Energy & Oxygen sources). A) Recall that microbes may vary in their carbon & energy sources. A. Generalized Structure. 1. Cell Appendages. A) Flagella. 1) Functions in movement of the cell. 2) 3 components. Prokaryotic Cell Structure. a) Filament . i) Whip-like, helical structure. b) Hook . i) Holds the filament. Alexey Onufriev, . Virginia Tech. www.cs.vt.edu/~onufriev. Proteins play key roles in a living system. Three (out of many many) examples of protein functions. Catalysis:. Almost all chemical reactions in a living cell are catalyzed by protein enzymes.. Group # 1. Akhtar. Ali. Lucile McCook. Marcella Hackney. Sarah Lea . Anglin. Anne Grove (Facilitator). Prokaryotic gene regulation. Context. Target Audience: Intro . Biology for . Freshmen. DNA structure. Structure dictates function . Prokaryotic transcription is simpler. DNA exists in one chromosome . Less non-coding sequence. RNA polymerase binds the promoter directly. Genes are clustered into functional groups called operons. Gene Expression. Gene Expression. Transcription. Splicing. Polyadenylation. mRNA Stability. Translation. Protein Stability. Controls on Protein Levels. Transcription Control - Prokaryotic Promoter. Transcription Control - Prokaryotic Promoter. P & E UKARYOTIC C ELLS  As you have already learned, everything is made up of living cells.  And the cells themselves are made up of many different parts .  There are many different cell trendiness factor is not such an issue. Not to mention the waste of every scientist’s time because new rounds of review are needed at every journal. One idea is every journal would have a front e . How are Prokaryotes Different from Eukaryotes?. The way their DNA is packaged. No nucleus. Not wrapped around . histones. The makeup of their cell wall. Bacteria- peptidoglycan. Archae- tough and made of other chemicals, distinct to them.