Home
Class 11
BIOLOGY
Complete the following paragraph by sele...

Complete the following paragraph by selecting the option that gives correct sequence of words.
When a stimulus is applied at a site on the polarised membrane, the membrane at that site becomes freely permeable to (i) ions.It causes rapid influx of (ii) leading to (iii) of the membrane.

A

`{:((i)," " (ii)," "(iii)),(Na^+,K^+,"depolarisation"):}`

B

`{:((i)," " (ii)," "(iii)),(K^+,K^+,"depolarisation"):}`

C

`{:((i)," " (ii)," "(iii)),(K^+,Na^+,"depolarisation"):}`

D

`{:((i)," " (ii)," "(iii)),(Na^+,Na^+,"depolarisation"):}`

Text Solution

Verified by Experts

The correct Answer is:
D
NA
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

Complete the following paragraph by selecting the corrects sequence of words from the options given below The Neanderthal man with a brain size of I lived near East and Central ii between iii years back. They used iv to protect their body and buried theri dead.

Complete the following paragraph by selecting the correct options for the blanks A ,B and C from the options given below : The most infections human ailment of ......I.... is caused by a group of viruses known as rhinoviruses. They infect the nose and the respiratory tract , but not the. .....II....... The droplets from an infected person are either ......III.... directly , or spread via contaminated objects.

Fill up the blanks in the following paragraph by selecting the correct option. During copulation (coitus) semen is released by the penis into the vagina and is called (i)._____.the ovum released by the ovary is transported to the (ii)._____where (iii).______takes place during fertilisation, a sperm comes in contact with the zona pellucida layer of the ovum and induces changes in the membrane that block the entry of (iv)._____The secretions of the (v)._____help the sperm enter into the cytoplasm of the ovum.

The nucleus is a significant organelle found in the cell. Read the following statements about the nucleus and select the option that correctly determines the number of false statements. (i) The nuclear envelope consists of two parallel membranes having space between them called pericentriolar space. (ii) The outer membrane of the nucleus usually remains continuous with the Golgi apparatus. (iii) The nuclear matrix or the nucleoplasm contains nucleolus and chromatin. (iv) Larger and more numerous nucleoli are present in cells actively carrying out lipid synthesis

Given below are the steps involved in the generation and conduction of nerve impulse. Arrange them in proper sequence and select the correct option. I. Rapid influx of Na^+ ions followed by reversal of polarity at the site of application of stimulus. II. Reversal of polarity and generation of action potential at a point ahead of the point of application of stimulus. III. Development of free permeability to Na^+ ions at the site of application of stimulus. IV. Arrival of the impulse generated at the first site to the second site. V. Rise in permeability of K^+ ions and restoration of the resting potential of the membrane.

Fill up the blanks in the following paragraph by selecting the correct option The vascular system of frog is well-developed ul("I") type. The blood vascular system involves heart, blood vessels and blood. Heart has 3 chambers, two atria and one ventricle and is covered bu a membrane called ul("ii") . A triangular structure called ul("iii") joins the right atrium.

Fill up the blanks in the following paragraph by selecting the correct option. Inbreeding increase ul(i) . This inbreeding is necessary if we want to evolve a ul(ii) in any animal. Inbreeding exposes harmful ul(iii) genes that are eliminated by selection.

NCERT FINGERTIPS-NEURAL CONTROL AND COORDINATION-Neural Control And Coordination
  1. The electrical potential diference between outside and inside of a ner...

    Text Solution

    |

  2. A typical value of resting membrane potential is

    Text Solution

    |

  3. Complete the following paragraph by selecting the option that gives co...

    Text Solution

    |

  4. During depolarisation the outer surface of the membrane becomes

    Text Solution

    |

  5. Depolarisation of axolemma during nerve conduction takes place because

    Text Solution

    |

  6. During the propagation of a nerve impulse, the action potential result...

    Text Solution

    |

  7. During the transmission of nerve impulse through a nerve fibre, the po...

    Text Solution

    |

  8. Saltatory conduction of impulse occurs in

    Text Solution

    |

  9. Read the given statements and select the correct ones. (i)Autonomic ...

    Text Solution

    |

  10. The junction between the axon of one neuron and the dendrite of the ne...

    Text Solution

    |

  11. Which of the following statements is/are incorrect about the electrica...

    Text Solution

    |

  12. Nerve fibres transmit the nerve message by means.

    Text Solution

    |

  13. A list of events occurring in the transmission of nerve impulse across...

    Text Solution

    |

  14. The given diagram shows axon terminal.Select the option that correctly...

    Text Solution

    |

  15. The given diagram shows axon terminal and synapse. Here A,B,C,D and E ...

    Text Solution

    |

  16. Which one of the following does not act as a neurotransmitter ?

    Text Solution

    |

  17. Read the given statements and select the correct option. (i)Synaptic...

    Text Solution

    |

  18. Unidirectional transmission of a nerve impulse through nerve fibre is ...

    Text Solution

    |

  19. Which of the following options correctly describes the sequence of str...

    Text Solution

    |

  20. Brain depends on blood for the supply of

    Text Solution

    |