Bacteria Shapes
Bacteria may be classified according to the shapes are as following: (a) Bacillus (rod shaped) (b) Spirillum (spiral or cork screw shaped) (c) Coccus ( (spherical or oval shaped) (d) Vibrio or Comma (comma shaped)
Gram positive and Gram negative bacteria
Definition Those bacteria which takes place gram stain made up of Crystal violet and Iodine are called gram positive (+) bacteria and those bacteria does not colored by gram stain are called gram negative (-) bacteria. The gram staining method was first used by the scientist Cristian Gram of Denmark in the year 1884. Examples [...]
Bacteria: Short Questions and Answers (Series 2)
* Define bacteria? – One type of aerobic or anaerobic, found to occur in air, in water, in soil, in living organisms, etc. familiarly called as microbe, smallest and simplest unicellular microscopic amazing characteristic organism called bacteria. * Mention four characteristic features of bacteria. – The following are the four characteristic features of bacteria. Smallest [...]
Bacteria: Short Questions and Answers (Series 1)
* Who first discovered bacteria? – Bacteria first discovered by Anton Van Leewenhoek in the year 1676. * Who first coined the term bacteria and in which year? – The term bacteria first coined by F.J. Cohn in the year 1854. * Name the branch of science which deals with bacteria? -The branch of science [...]
