Home
Class 11
BIOLOGY
Assertion : Bacteria have three basic sh...

Assertion : Bacteria have three basic shapes, i.e., round, rod, spiral.
Reason : Cocci and Bacilli may from clusters or chain of a definite length.

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B

If both the assertion and the reason are true and the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If both the assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
b
Bacteria have different shapes spherical, rod, and spiral are three important type. Cocci may be in cluster or chain from or single and bacilli may be single, in pair in chain.
Promotional Banner

Topper's Solved these Questions

  • MINERAL NUTRITION

    ERRORLESS |Exercise Mineral Nutrition|211 Videos

  • MORPHOLOGY OF ANIMALS

    ERRORLESS |Exercise Morphology Of Animals|134 Videos

Similar Questions

Explore conceptually related problems

Assertion: Alarming growth rate of India culd lead to an absolute scarcity of even the basic requirements, i.e., food, shelter and cloting, inspite of significant progress made in those areas. Reason Many coupes, mostly the young, urban, working oones have even adopted a one child norm.

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Moment of inertia of a circular disc of mass 'M' and radius 'R' about X, Y axes (passing through its plane) and Z-axis which is perpendicular to its plane were found to be I_(x),I_(y) and I_(z) respectively. The respective radii of gyration about all the three axes will be the same. Reason R : A rigid body making rotational motion has fixed mass and shape. In the light of the above statements, choose the most appropriate answer from the options given below :

Assertion (A) : p orbital is dumb- bell shaped Reason (R ) :Electron presents in p orbital can have any one of three value of magnetic quantum number i.e. 0,+1, or - 1

ERRORLESS -MONERA-Monera
  1. Oxygen is not produced during photosynthesis by

    Text Solution

    |

  2. Assertion : Bacteria are prokaryotic. Reason : Bacteria do not posse...

    Text Solution

    |

  3. Assertion : Bacteria have three basic shapes, i.e., round, rod, spiral...

    Text Solution

    |

  4. Assertion : Bacterial photosynthesis occurs by utilizing wavelength lo...

    Text Solution

    |

  5. Assertion : The nitrogen-fixing bacteria in leguminous plant nodules l...

    Text Solution

    |

  6. Assertion : Bacteria are classified among plants. Reason : They have...

    Text Solution

    |

  7. Assertion : Bacteria do not always move with the help of flagella. R...

    Text Solution

    |

  8. Assertion : Some bacteria have the caoacity to retain Gram stain after...

    Text Solution

    |

  9. Assertion : None autotrophic bacteria carry out chemosynthesis. Reas...

    Text Solution

    |

  10. Assertion : Exotoxins are released by Gram +ve bacteria causing diseas...

    Text Solution

    |

  11. Assertion : All food chains will come to stand still if bacteria disap...

    Text Solution

    |

  12. Assertion : Broad spectrum antibiotics are produced by streptomyces. ...

    Text Solution

    |

  13. Assertion : Bacterial cell wall is characterised by having mucopolysac...

    Text Solution

    |

  14. Assertion : Root nodules in leguminous plants are inhabited by Anabaen...

    Text Solution

    |

  15. Assertion : Bacillus butschli is true bacterium. Reason : Its cell w...

    Text Solution

    |

  16. Assertion : Plasmids are double-stranded extra chromosomal DNA. Reas...

    Text Solution

    |

  17. Assertion : Pili are motile appendages of bacteria. Reason : Pili pa...

    Text Solution

    |

  18. Assertion : Cell secretion does not occur in bacteria. Reason : Golg...

    Text Solution

    |

  19. Assertion : Agrobacterium tumefaciens is the causative agent of crown ...

    Text Solution

    |

  20. Which of the following represents obligate anaerobes

    Text Solution

    |