Sunday, June 25, 2017

1.3: Describe the Common Features Shown by Prokaryotic Organisms such as Bacteria

BACTERIA: Microscopic organism that causes diseases

GROUPS OF ORGANISMS
BACTERIA
s
  • Unicellular organism
  • Feeds on living or dead organisms
  • Structure:
  • Nucleoid - single circular strand of DNA
  • Plasmid - independent small circle of DNA
  • Plasma membrane - phospholipid bilayer that controls movement of substances into and out of cell 
  • Cell wall - made of Peptidoglycan to protect and maintain shape of cell 
  •  *Pili - protein filmanets that facilitates cell adhesion and conjugation 
  •  *70S Ribosomes - site of protein synthesis 
  •  *Flagellum - elongated inflexible structure that rotates to move cell

  • Example:
  • Lactobacillus Bulgarcius (rod-shaped bacterium used in production of Yoghurt)
  • Pnemococcus (spherical bacterium that causes Pneumonia)



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4 comments:

  1. to know about prokaryotes is very important for biology students because its effect the human biengs directly as well as indirectly.

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  2. Thanks so much for saving my life; I have my biology mocks in two days and I was panicking until I found this

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