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| | Chapter 12 Lecture Notes: |
 | | Sometimes the movement is movement of the whole cell. | | | Cancer researchers are starting to think it might be better to give early stage cancer patients a variety of anti-cancer drugs. | | | In the book What is Life by Lynn Margulis and Dorion Sagan, the authors point out that humans essentially replace their livers every 2 months and their skin every 6 weeks. |
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http://www.ccsn.nevada.edu/science/jreed/100.C6MC.htm
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| | Prokaryotic Cells |
| | There is no such thing as meiosis or syngamy in prokaryotes. | | | Additional ATP is generated by respiration of any permeating oxygen. | | | This idea must be tempered by some basic ideas that you learned above. |
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http://koning.ecsu.ctstateu.edu/principles/prokaryoticcell.html
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| | Encyclopedia: Prokaryotic cell |
| | Many prokaryotes live in or on the bodies of other organisms, including humans. | | | Archaea in particular seem to thrive in harsh conditions, such as high temperatures or salinity. | | | This is in contrast to eukaryotes, organisms that have cell nuclei and may be variously unicellular or multicellular. |
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http://www.nationmaster.com/encyclopedia/Prokaryotic-cell
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| | Eubacteria Properties Table |
| | This was surprising, because the earlier opinion was that the archaebacteria represented the most primitive prokaryotic organisms. | | | Ribosome structure has played an important role in establishing phylogenetic relationships among organisms. | | | However, there is very little internal membrane structure. |
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http://science.kennesaw.edu/biophys/biodiversity/eubacteria/eubact2.htm
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| | 1) What characterizes a prokaryotic cell |
| | A) Precursors of rough endoplasmic reticula had evolved within prokaryotes. | | | D) The basic types of locomotion by whiplash flagella evolved in prokaryotes. | | | C) Mitosis developed as a process in more recent prokaryotes. |
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http://www.uleth.ca/bio/bio1020/jbmidterm2.html
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| | MSN Encarta - Cell (biology) |
| | All together, these assembled organ systems form the human body. | | | Also immersed in the cytoplasm are the only organelles in prokaryotic cellsâ”tiny bead-like structures called ribosomes. | | | Recent research suggests that the cytoskeleton also may be a mechanical communication structure that converses with the nucleus to help organize events in the cell. |
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http://encarta.msn.com/encnet/refpages/RefArticle.aspx?refid=761568585
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| | [No title] |
| | There are links to other sites that will help you understand the concepts and to see ideas / facts presented in different ways. | | | Prokaryotic cells are fundamentally different in their internal organization from eukaryotic cells. | | | Many animals have skeletons to give their body structure and support. |
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http://www.tnmanning.com/id28_m.htm
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| | Prokaryotic Cell Structure |
| | Coli Grows in human intestine; Has a single, circular chromosome | | | BL/CH401 Biochemistry 1 - Lecture 2 - Cell Structure |
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http://www.bio.mtu.edu/campbell/prokaryo.htm
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| | Prokaryotic cell division protein FtsZ |
| | Crystal structure determination of FtsZ from Methanococcus jannaschii. | | | Much concerning the regulatory mechanisms that coordinate the cell cycle and timing of division, as well as many aspects of the division process itself, remains elusive and a clearer understanding of these processes is desirable (4). | | | ost prokaryotes divide by a process called 'binary fission', whereby one cell gives rise to two daughter cells which are essentially identical with respect to their physiology and genetic content. |
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http://www.umass.edu/microbio/chime/pipe/ftsz/present
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| | Cells Online |
| | The study of prokaryotic and eukaryotic cells most often leads an in-depth study of cells. | | | Thus possibilities for further study include detailed coverage of cell structure, organelles, transport, function, the nucleus, reproduction, genetic material, etc. Further studies of symbiotic theory are also facilitated by this lesson. | | | Students will develop group work skills as well as their computer skills. |
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http://www.gsu.edu/~mstjrh/cells.html
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| | [No title] |
| | Bacteria represent the most simple cell structure and these are generally considered to be the most "primitive" of organisms. | | | Actually, blue-green algae are a controversial group of organisms. | | | This is a human cheek cell which should look very similar to what you saw in lab. |
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http://www.und.nodak.edu/dept/jcarmich/101lab/lab2/lab2.html
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| | CELL BIOLOGY: ON THE PROKARYOTIC CELL CYCLE |
| | The obvious oscillatory behavior of biological cells has for many decades been the focus of much research involving mathematical modeling. | | | The periodicity of the cycle varies from one type of cell to another, and within a single type, the periodicity can also vary in response to ambient conditions. | | | 2) Until the late 1940s, research on mitosis was primarily restricted to an examination of cells that had been preserved in a lifelike state by chemicals (the condition called "fixed") and then colored with dyes to generate contrast between their different components. |
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http://scienceweek.com/2004/sc041105-1.htm
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| | Functional Anatomy of Prokaryotic Cells |
| | Compare and contrast the overall cell structure of prokaryotes and eukaryotes. | | | Prokaryotic cells do not have a membrane-bound nucleus or other membrane-enclosed organelles. | | | Describe the structure and function of the glycocalyx, flagella, axial filaments, firnbriae, and pili. |
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http://www.life.umd.edu/classroom/bsci424/BSCI223WebSiteFiles/Chapter4.htm
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| | Characteristics of Prokaryotic and Eukaryotic Cells |
| | Prokaryotic cells tend to lack other membrane-bound organelles (the nucleus, itself, also represents a membrane-bound organelle) | | | Bacterial shapes, depending on the organism, can change subtly when cells are growing or existing under different conditions, e.g., a shortening of rods as nutrient concentrations are used up and therefore as growth rates decline; this will be especially obvious as you attempt to classify the shape of such things as stationary-phase | | | Across all types of organisms, cells may be classified into two fundamental morphological types: Prokaryotes and Eukaryotes |
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http://www.mansfield.ohio-state.edu/~sabedon/black04.htm
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| | prokaryotic cell |
| | Prokaryotic cells are more primitive than eukaryotic cells, which evolved from them. | | | A cell lacking a membrane-bounded nucleus or membrane-bounded organelles. |
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http://www.daviddarling.info/encyclopedia/P/prokaryoticcell.html
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| | CELLS alive! Cell Models |
| | : These cells are simple in structure, with no recognizable organelles. | | | The cytoplasm enclosed within the cell membrane does not exhibit much structure when viewed by electron microscopy. | | | These cells tend to be larger than the cells of bacteria, and have developed specialized packaging and transport mechanisms that may be necessary to support their larger size. |
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http://www.cellsalive.com/cells/3dcell.htm
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| | BIOdotEDU |
| | Prokaryotic flagella are very different from similar looking structures used by eukaryotic cells. | | | Prokaryotic cells are the simplest systems that exhibit all of the signs of life. | | | Today, they are isolated, changed to carry other interesting information and then reintroduced into new cells. |
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http://www.brooklyn.cuny.edu/bc/ahp/LAD/C5/C5_Prokary.html
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| | CELL REPRODUCTION |
| | Biologist have named the Steps, or Phases, of Mitosis to help study the process. | | | A Cell typically goes through PHASES during its Life, performing life processes of GROWTH AND DEVELOPMENT before it divides into new cells. | | | Cell division is the process by which cells produce offspring cells. |
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http://www.sirinet.net/~jgjohnso/reprod.html
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| | Bacterial Cell Diagram, Picture by Russell Kightley Media |
| | Plasmids replicate independently of the nucleoid DNA and can be exchanged between cells (the means of passing on, for example, drug resistance). | | | This form of prokaryotic cytoskeleton was recently described in the journals CELL and NATURE (references: CELL, Vol. | | | Infoldings of the Plasma membrane are common and are often associated with the nucleoid. |
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http://www.rkm.com.au/CELL/Bacteria
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| | Prokaryotic Cell Structure: The Cell Wall |
| | Interference with this process results in a weak cell wall and lysis of the bacterium from osmotic pressure. | | | In this section on Prokaryotic Cell Structure we are looking at the various organelles or structures that make up a bacterium. | | | The Archaea (archaebacteria), that are often found growing in extreme environments, also have a semirigid cell wall but it is composed of chemicals distinct from peptidoglycan such as protein or pseudomurein. |
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http://www.cat.cc.md.us/courses/bio141/lecguide/unit1/prostruct/cw.html
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| | Cellular Growth and Division Lesson 1: Prokaryotic Cell Cycle |
| | Understand that cellular division in prokaryotes is greatly affected by environmental conditions. | | | Essentially, prokaryotic organisms grow until reaching a critical size and then divide, only to repeat the process over and over again. | | | The prokaryotic growth cycle is a relatively straightforward process. |
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http://www.sci.uidaho.edu/bionet/biol115/t6_cell_growth/lesson01/lesson1_mod1.htm
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| | Eukaryotic and Prokaryotic Cell Comparison |
| | A group of microtubules which provide the base on which a flagellum can develop | | | Some of the structures found in a Eukaryotic cell and their proposed functions | | | Synthesis of orgainc materials using light as an energy source (photosynthesis) |
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http://www.trentu.ca/biology/101/3.html
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| | 1.7g Cell Net.alfa18 : prokaryotic_cell |
| | prokaryotes do not have a "true membrane-bound nucleus;" also lack membrane-bound organelles | | | A text summary of the clickable map above, meant for web-crawlers and other automatic tools: |
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http://www.biologylessons.sdsu.edu/classes/lab7/semnet/prokaryotic_cell.htm
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| | Cell Types |
| | The layer that separates the cell contents from the surrounding environment and controls the transport of substances into and out of the cell. | | | The cell organelle where photosynthesis takes place in eucaryotic cells. | | | The cell organelle where energy is produced in eucaryotic cells. |
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http://www.geo.arizona.edu/Antevs/nats104/celltypes.html
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| | Prokaryotic Cell Division |
| | In prokaryotic cell division, called binary fission, a membrane attachment mechanism is used to allocate chromosome copies to the two daughter cells. | | | Continued growth of the cell gradually separtates the chromosomes. | | | Upon attachment to the plasma membrane, the DNA replicates and reattaches at separate points. |
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http://home.earthlink.net/~dayvdanls/pcelldiv.htm
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| | Prokaryotic Cell Structure |
| | Home : IB : Biology : Standard Level : Cells : Prokaryotic Cell Structure | | | Draw a picture of prokaryotic cell structure showing Ribosomes, Mesosome, Slime Capsule, Cell Wall, Flagellum, Cell Surface Membrane, Plasmid, and Naked Nucleic Acid. | | | Physical barrier to predatory protazoa, white blood cells or bacteriophages |
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http://www.revision-notes.co.uk/revision/75.html
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