Home
Class 11
BIOLOGY
The shape of eye lens is changed by...

The shape of eye lens is changed by

A

pupil

B

iris

C

optic nerve

D

ciliary muscle

Text Solution

Verified by Experts

The correct Answer is:
D
Ciliary muscles are circular sheet of smooth muscle fibres present within the ciliary body. These muscles alter the shape of the lens during contraction.
Promotional Banner

Topper's Solved these Questions

  • MORPHOLOGY OF FLOWERING PLANTS

    NCERT FINGERTIPS|Exercise Morphology Of Flowering Plants|135 Videos

  • PHOTOSYNTHESIS IN HIGHER PLANTS

    NCERT FINGERTIPS|Exercise Photosynthesis In Higher Plants|136 Videos

Similar Questions

Explore conceptually related problems

The eye lens is a

Nature of eye lens is

Focal length of eye lens is changed by

Assertion: The image distance in the eye increases, when we increase the distance of an object from the eye. Reason: For normal eye, image distance in the eye is fixed, being equal to distance of retina from the eye lens. The focal length of the eye lens is changed on account of accommodation power of the eye.

The change in focal length of an eye lens is caused by the action of the

NCERT FINGERTIPS-NEURAL CONTROL AND COORDINATION-Neural Control And Coordination
  1. The innermost layer of the human eye is

    Text Solution

    |

  2. The black pigment in the eye, which reduces the internal reflection, i...

    Text Solution

    |

  3. The shape of eye lens is changed by

    Text Solution

    |

  4. The size of pupil is controlled by the

    Text Solution

    |

  5. Why is it difficult to differentiate between red and green colour obje...

    Text Solution

    |

  6. Which of the following cells are associated with identification of col...

    Text Solution

    |

  7. In the chemistry of vision in mammals, the photosensitive substance is...

    Text Solution

    |

  8. Which one of the following is the correct difference between rod cells...

    Text Solution

    |

  9. The point in eye of mammals from which optic nerves and blood vessels ...

    Text Solution

    |

  10. Blind spont in vertebrate eye is the place where

    Text Solution

    |

  11. The depression in the retina of eye which lodges only the cones is cal...

    Text Solution

    |

  12. Retina is most sensitive at

    Text Solution

    |

  13. The fluid filled in the space between lens and cornea is termed as

    Text Solution

    |

  14. A list of steps involved in mechanism of vision is given below in a ra...

    Text Solution

    |

  15. Path taken in the eye ball by light rays is

    Text Solution

    |

  16. The light stricking the retina generates nerve impulse.Which of the fo...

    Text Solution

    |

  17. A diagram of ear is given here.Identify the parts A to H and select t...

    Text Solution

    |

  18. Which of the following statements is incorrect ?

    Text Solution

    |

  19. Eustachian tube is a passage connecting the

    Text Solution

    |

  20. Select the option that correctly matches the structures with its locat...

    Text Solution

    |