Home
Class 12
BIOLOGY
[A] : [A]: ECG is a record of electrical...

[A] : [A]: ECG is a record of electrical activity of the heart that shows certain waves called PQRS and T waves.
[R]: It gives important information concerning the spread of excitation to the different parts of heart and helps in diagnosis of heart disor- ders.

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ANIMAL KINGDOM -NONCHORDATES

    TRUEMAN BIOLOGY|Exercise MCQ|283 Videos
  • APPLICATION OF BIOTECHNOLOGY

    TRUEMAN BIOLOGY|Exercise Multiple Choice Questions|122 Videos
TRUEMAN BIOLOGY-Animal Physiology -ASSERTION AND REASON
  1. [A] : Hydrostatic pressure in blood forces wa- ter and other solutes ...

    Text Solution

    |

  2. [A] : Extracellular fluid serves as the sanitary drainage line of the...

    Text Solution

    |

  3. [A] : [A]: ECG is a record of electrical activity of the heart that sh...

    Text Solution

    |

  4. [A] : Regulation of the rate of breathing is brought about by the resp...

    Text Solution

    |

  5. [A] : Role of RBC' In CO2 transport Is primarily to form HCO3 - for c...

    Text Solution

    |

  6. [A] : SA node is contraction centre or Pace Maker. [R]: Nodal fibre...

    Text Solution

    |

  7. [A] : Acetylchoiine allows a nerve cell to com- municate chemically w...

    Text Solution

    |

  8. A : Transmission of the nerve impulse across a synapse is accomplishe...

    Text Solution

    |

  9. [A] : CO2 is mainly transported in plasma as HCO3^(-) ions [R]: Th...

    Text Solution

    |

  10. [A] : Conjunctiva is composed of squamous epithelium and lines the eye...

    Text Solution

    |

  11. [A] : Tympanic membrane stretching across the aperture between skull ...

    Text Solution

    |

  12. Assertion : Lateral line system is found in fishes and aquatic larval ...

    Text Solution

    |

  13. [A] : [A]: Parthenogenesis is a type of asexual reproduction. [R]: Bec...

    Text Solution

    |

  14. [A] : Our inner ear contains sense organs for balance movement of flu...

    Text Solution

    |

  15. [A] : Hair cells on the basilar membrane are responsible for hearing....

    Text Solution

    |

  16. [A]: Thyroid stimulating hormone is smallest peptide hormone. [R]: ...

    Text Solution

    |

  17. Assertion: Aldosterone is a steroid hormone and is important in the co...

    Text Solution

    |

  18. [A] : Cortisol is a protein hormone that regu- lates gluconeogenesis ...

    Text Solution

    |

  19. [A]: A tadpole whose thyroid gland has been removed does not metamorph...

    Text Solution

    |

  20. [A]: The regulation of RBC production is ac complished by the hormone ...

    Text Solution

    |