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Chapter 13: Problem 6

Why (in evolutionary terms) do you think there are so many kinds of neurotransmitters?

Short Answer

Expert verified
The variety of neurotransmitters can be viewed as an evolutionary adaptation, each developed to perform specific tasks. This diversity allows organisms to carry out diverse functions, aiding in survival and adaptation, similar to how diversity in species is pivotal in evolution.

Step by step solution

01

Identify the Concept of Evolution

In the context of evolution, the diversity among species arises due to the process of natural selection - a flagship concept of evolutionary biology. Natural selection ensures the survival of organisms that have traits which best suit them in their environment, adding further diversity to the species. Each favorable trait a species develops further adds to the evolutionary process.
02

Relate to Diversity of Neurotransmitters

Neurotransmitters are chemical substances that play a crucial role in conveying information in the body, particularly in the brain, fulfilling diverse functions. Just like diversity in species helps in their survival, the numerous kinds of neurotransmitters allows the body to perform a wide array of tasks; for instance, some neurotransmitters control body movement, while others help to regulate mood and emotions.
03

Connect Evolutionary Concepts to Neurotransmitters Diversity

From an evolutionary perspective, the various types of neurotransmitters could be regarded as an evolutionary adaptation, each having been developed to perform a particular function. Over millions of years of evolution, this diverse range of neurotransmitters has helped organisms to survive, adapt and thrive within their environments.

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Most popular questions from this chapter

Would you classify NMDA receptors as ionotropic or metabotropic? Why?

What are the criteria for identification of the neurotransmitter at a particular synapse? Which two criteria are sufficient to conclude that a candidate is the neurotransmitter?

Why are there multiple receptor subtypes for each neurotransmitter? Why not a few receptors and lots of neurotransmitters acting on each receptor?

Why is it difficult to show vesicular release of neurotransmitter molecules by electron microscopy?

Discuss the functional differences between ionotropic and metabotropic receptors.
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