NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology Diversity in Living World-Five Kingdom Classification Revision (Page 4 of 46)

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Heterotrophs

  • Most of the bacteria are heterotrophic i. e. , they cannot manufacture their own food.

  • They receive their own food from dead organic matter or living organism.

These are of following types

  1. Saprotrophic bacteria - These bacteria obtain food from dead and decaying organic matter.

    These are of two types

    1. Obligate saprotrophic - These bacteria obtain food only from dead organic matter.

      These are completely saprotrophs

      e. g. Bacillus vulgaris, Clostridium botulinum

    2. Facultativ

… (113 more words) …

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Respiration

Based on respiration bacteria are of two types

Aerobic bacteria

These are of two types

  1. Obligate aerobic - These are completely aerobic and die in the absence of 02 e. g. Azotobacter
  2. Facultative anaerobic - These are normally aerobic bacteria but can survive in the absence of O2

e. g. Acetobacter aceti Clostridium tetani

Anaerobic bacteria

These are of two types.

  1. Obligate anaerobic - These are completely anaerobic bacteria and do not have capacity of aerobic respiration. e. g. Clost

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