Describe the function of the following:
(i) Neurotransmitters
(ii) Pituitary gland
(iii) Pacemaker in mammalian heart
(iv) Bicarbonate ions in mammalian blood
(v) Brown fat
(i) Neurotransmitters
Answer- Neurotransmitters, also known as chemical messengers, are endogenous chemicals that enable neurotransmission. They transmit signals across a chemical synapse, such as a neuromuscular junction, from one neuron (nerve cell) to another "target" neuron, muscle cell, or gland cell. Neurotransmitters are released from synaptic vesicles in synapses into the synaptic cleft, where they are received by neurotransmitter receptors on the target cells. Many neurotransmitters are synthesized from simple and plentiful precursors such as amino acids, which are readily available from the diet and only require a small number of biosynthetic steps for conversion. Neurotransmitters play a major role in shaping everyday life and functions. Their exact numbers are unknown, but more than 100 chemical messengers have been uniquely identified.
(ii) Pituitary gland
Answer- The pituitary gland is a tiny organ,
_________ ___ ________ ________ ____ ___ ___.
________ _______ ________ _____ _________ _____ ________ _____ _____ _______ ___ ____.
_______ __________ ______ _________ __________ __________ _____ ___ __________.
_________ _______ __________ ________ ___ ______ _______ ___.
_____ ___ _________ _______ ______ ________ ______ ____ ___ _____ _____ _______.
___ ____ _______ ________ ________ ________ ___ ________ ______ _______ ____ ________.
____ ___ _____ _____ _________ _____ _______.
___ _________ _____ ______ ____ ____ _____ ________ _____ ____ ________ __________.
_________ ________ ________ ____ ________ ____ _____ ______ ______ ________ ______ _________.
__________ ___ ___ _____ __________ _________ _____ __________.
_________ ____ _______ ___ ________ ________ _______ ______ _______ _______.
_________ __________ ______ _________ _____ ________ _____ ________ _______ ____ ______ ___.
_____ _____ ______ ______ ______ ___ __________ ______.
_______ ____ ______ _____ _______ __________ _________ _______ _______ ____ _______.
__________ _____ ___ _________ __________ __________ __________ _____ _________ ____ ____.
___ _____ _______ ________ ___ _____ _______.
____ ___ _________ ___ ____ ________ __________ ______ _______ ______.
______ ______ _____ _______ _____ ___ __________ ____ ________ ________.
________ _____ ____ ____ _____ _____.
__________ _______ ______ _______ ______ ____ _________.
_______ ___ ____ __________ ________ _______ ______.
_________ _____ __________ ____ _________ ____.
__________ _____ _________ ___ ____ ________ ___ _____ ___ ______ _____.
____ _____ _________ ____ _______ __________ _____ __________ ________ _____ _______.
______ _______ ______ ____ ___ _______ ____ ___ ____ _____ ____.
_____.
- Solved Assignments
- Study Notes
- Guess Papers
- Question Papers
✓ Unlock up to 60% of the answer
✓ No payment required