Nissl bodies are mainly composed of:
1. Proteins and lipids
2. DNA and RNA
3. Nucleic acids and SER
4. Free ribosomes and RER

Subtopic:  Nervous System |
 73%
Level 2: 60%+
NEET - 2018
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Receptor sites for neurotransmitters are present on:

1. Pre-synaptic membrane

2. Tips of axons

3. Post-synaptic membrane

4. Membrane of synaptic vesicles

Subtopic:  Nervous System | Synapse |
 81%
Level 1: 80%+
NEET - 2017
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