Home
Class 11
BIOLOGY
Chemicals which are released at the syna...

Chemicals which are released at the synap- tic junction are called

A

hormones

B

neurotransmitters

C

lymph

D

cerebrospinal fluid

Text Solution

Verified by Experts

The correct Answer is:
B
A typical synapse consists of a bulbous expansion of a nerve terminal called a pre-synaptic knob lying close to the membrane of a dendrite.The cytoplasm of the synaptic knob contains mitochondria, smooth endoplasmic reticulum, microfilaments and numerous synaptic vesicles. Each vesicles contains neurotransmitter (chemical substance) responsible for the transmission of the nerve impulse across the synapse.
Promotional Banner

Topper's Solved these Questions

  • MORPHOLOGY OF FLOWERING PLANTS

    NCERT FINGERTIPS ENGLISH|Exercise Morphology Of Flowering Plants|135 Videos

  • PHOTOSYNTHESIS IN HIGHER PLANTS

    NCERT FINGERTIPS ENGLISH|Exercise Photosynthesis In Higher Plants|136 Videos

Similar Questions

Explore conceptually related problems

Chemicals which are released at the synaptic junction are called

Chemicals which are released at the synaptic junction are called

Chemicals which are released at the synaptic junction are called :

The chemicals which regulate the synaptic transmission at chemical synapses are called

Assertion : The chemicals showing green colour in most their reactions are called green chemicals . Reason : Green chemicals are friendly to the enviroment.

The reverse voltage at which the current increases enormously, in a p-n junction, is called

Which of the following chemical is a not released by the mast cells during allergic reactions

The substance which decreases the rate of a chemical reaction in called a/an:

Release of semen into the prostatic urethra is called

Jet aeroplanes releases pollutants in air called

NCERT FINGERTIPS ENGLISH-NEURAL CONTROL AND COORDINATION-All Questions
  1. Following is the figure of a saggital section of a human brain.Match t...

    Text Solution

    |

  2. Two neurons, A and B, synapse onto a third neuron, C.If neurotransmitt...

    Text Solution

    |

  3. Chemicals which are released at the synap- tic junction are called

    Text Solution

    |

  4. Potential difference across resting mem- brane is negatively charged. ...

    Text Solution

    |

  5. Resting membrane potential is maintained by

    Text Solution

    |

  6. The function of our visceral organs is controlled by

    Text Solution

    |

  7. Which of the following is not involved in Knee-jerk reflex

    Text Solution

    |

  8. An area in the brain which is associated with strong emotions is

    Text Solution

    |

  9. Mark the vitamin present in Rhodopsin

    Text Solution

    |

  10. Human eyeball consists of three layers and it encloses

    Text Solution

    |

  11. Wax gland present in the ear canal is called

    Text Solution

    |

  12. The part of internal ear responsible for hear- ing is

    Text Solution

    |

  13. The organ of Corti is a structure present in

    Text Solution

    |

  14. While travelling to higher altitudes, people can feel pain in the ear ...

    Text Solution

    |

  15. Assertion:This PNS comprises of all the nerves of the body associated ...

    Text Solution

    |

  16. Assertion:Multipolar neurons have two or more axons and one dendrite ...

    Text Solution

    |

  17. Assertion:Myelinated nerve fibres are present in spinal and cranial ne...

    Text Solution

    |

  18. Assertion:The resting membrane of the neuron exhibits polarity of char...

    Text Solution

    |

  19. Assertion:Electrical synapses are rare in our system. Reason:Impulse...

    Text Solution

    |

  20. Assertion:Association areas are neither clearly sensory nor motor in f...

    Text Solution

    |