1 / 10

Strep Throat

(4). Strep Throat. Sam Pedersen Alanis Ciccitto. Classification of Strep Throat . Strep throat is caused by an organism called Streptococcus pnuemoniae . Kingdom: Bacteria Phylum - a member of a large group of a single cell microorganisms lacking organelles and an organized nucleus

travis
Download Presentation

Strep Throat

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. (4) Strep Throat Sam Pedersen Alanis Ciccitto

  2. Classification of Strep Throat • Strep throat is caused by an organism called Streptococcus pnuemoniae. Kingdom: Bacteria Phylum - a member of a large group of a single cell microorganisms lacking organelles and an organized nucleus Genus: Streptococcus - 1 seeded fragment and has a spherical shape to it Species: Pneumoniae - gram-positive, cell wall absorbs the stain and makes a capsule (C.Cottman)

  3. Benefits and importance to understanding how cells reproduce • Stop strep throat at an early time before the bacteria multiplies. • Give ideas to scientists to find ways to slow down or terminate the reproduction of S. pnuemoniae. • Assist in finding a vaccination for the bacteria for children at a young age. • (1)

  4. Binary Fission • Binary fission takes place in prokaryotic organisms • Organisms whose cells are lacking a nucleus and central organelles • (1)

  5. Binary fission step 1: Replication of DNA • A replication bubble is formed • DNA strands are separated • Each strand serves as a template for synthesis of a new complementary strand • DNA is then duplicated • (2)

  6. Step 2: Growth of a cell • Cell grows considerably and increases its size • Two circular DNA strands migrate • They attach themselves to the plasma membrane in different sites • (2)

  7. Step 3: Segregation of DNA • Cell elongates and pulls apart from opposite poles. • (the cell membrane extends and pinches inwards) • This step is controlled by a group of protein that assemble near the division site • (2)

  8. Step 4: Splitting of Cells • The parent cell finally forms two daughter cells • Each cell has its own cell wall and chromosomes of its own • The daughter cells are usually identical • (2) (1)

  9. Pertinent Structures of Bacteria • Nucleoid- (not a nucleus) central region where DNA is generally confined • Ribosomes- give cytoplasm of bacteria appearance • Cell wall- maintains the cells outer shape(a round sphere shape) • Pili- hallow hairlikestrutctures that allow bacteria to attach to other cells • (3)

  10. Sources • (1)The Encyclopedia of Science. (2008). Binary fission. Retrieved From http://www.daviddarling.info/encyclopedia/B/ binary_fission.html • (2)Angert, E. (n.d.). Cornell university department of microbiology. Retrieved from http://micro.cornell.edu/cals/micro/research/l abs/angert-lab/binary.cfm • (3) (n.d.). Retrieved from http://www.cellsalive.com/cells/bactcell.htm • (4)Farabee, M. J. (2010, May 18). Life: The science of biology. Retrieved from http://www.emc.maricopa.edu/faculty/farabe e/biobk/biobookmito.html

More Related