Home
Class 11
BIOLOGY
Assertion: Biceps and triceps are antago...

Assertion: Biceps and triceps are antagonistic muscles
Reason: The biceps flexes the arm and the tr4iceps straightens the arm.

A

If both assertion and reason are ture and reason is the corect explanation of assertion

B

If both assertion and reason are ture but reson is not the correct explanation of assertion

C

If assertion is true reason is false

D

If both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
a
Some muscle are arranged in sets of two and act in opposition to bring movement. Such muscles are called antagonistic muscles. For example, the biceps bends or flexes the arm and its antagonist, the triceps straightens or extends the arm.
Promotional Banner

Topper's Solved these Questions

  • EXCRETORY PRODUCTS AND THEIR ELIMINATION

    NCERT FINGERTIPS|Exercise Excretory Products And Their Elimination|133 Videos

  • MINERAL NUTRITION

    NCERT FINGERTIPS|Exercise Mineral Nutrition|130 Videos

Similar Questions

Explore conceptually related problems

Assertion Biceps and triceps are called antagonistic muscles. Reason This is due to the fact that they contract and relax together.

The biceps and triceps muscles are found in

Assertion : The up and down movements of four arms are controlled by two types of muscles, biceps and triceps. Reason : Biceps : Biceps are the muscles that straighten the arm and triceps are the muscles that bend the arm.

The triceps and biceps muscles are of

Assertion: Triceps is said to be an extensor muscle for elbow joint. Reason: Triceps relaxes durings extension of forearm at the elbow joint.

What happens to the bicep and tricep muscles when we bend our arm?

Assertion : The joint present between bones of the upper arm and fore arm is pivot joint. Reason : Pivot joint allows all-round movement.

Read the assertion and reason carefully to mark the correct option in question. Assertion: Sub-metacentric chromosome has one shorter and one longer arm. Reason: Metacentric chromosome have one very long and one very short arm.

Assertion (A): Aminoacylation is an essential step for the synthesis of protein. Reason (R): It is the process of adding an activated amino acid to the acceptor arm of a transfer RNA.

NCERT FINGERTIPS-LOCOMOTION AND MOVEMENT-Locomotion And Movement
  1. Which one of the following is not a disorder of bone ?

    Text Solution

    |

  2. Which one of the following statements is incorrect?

    Text Solution

    |

  3. Which one of the following statements is true?

    Text Solution

    |

  4. Muscles with characteristic striations and involuntary are

    Text Solution

    |

  5. Match the followings and mark the correct option.

    Text Solution

    |

  6. Assertion: Visceral muscles are smooth in appearance. Reason: Many m...

    Text Solution

    |

  7. Assertion: Muscle fibre is a syncitium. Reason: Muscle fibre has a l...

    Text Solution

    |

  8. Assertion: Biceps and triceps are antagonistic muscles Reason: The b...

    Text Solution

    |

  9. Assertion: Mechanism of muscle contraction is expalained by sliding-f...

    Text Solution

    |

  10. Assertion: on stimulation, a muscle cell releases calcium ions (Ca^(2...

    Text Solution

    |

  11. Assertion: The portion of the myofibril between two successive Z-lines...

    Text Solution

    |

  12. Assertion: A parson undergoes fatigue very soon during exercise. Rea...

    Text Solution

    |

  13. Assertion: Red muscles depend on anaerobic process for energy. Reaso...

    Text Solution

    |

  14. Assertion: Bone has very hard matrix whereas cartilage has pliable mat...

    Text Solution

    |

  15. Assertion: Human has dicondylic skull. Reason: Skull articulates wit...

    Text Solution

    |

  16. Assertion: First seven pairs of ribs are called true ribs. Reason: T...

    Text Solution

    |

  17. Assertion: Ulna is longer than radius. Reason: It has large olecrano...

    Text Solution

    |

  18. Assertion: Fibrous joints play a significant role in locomotion. Rea...

    Text Solution

    |

  19. Assertion: The joint between the atlas and axis is an example of glidi...

    Text Solution

    |

  20. Assertion: Tetany is rapid spasm in muscle. Reason: Tetany is usuall...

    Text Solution

    |