Which of the Following Is Not a Type of Pericyclic

question 29

Multiple Choice

Which of the following is not a type of pericyclic reactions?

• A)cycloadditions
• B)nucleophilic reactions
• C)electrocyclic reactions
• D)sigmatropic rearrangements

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Definitions:

Myelin Sheath

The insulating layer around many nerve fibers, consisting of protein and fatty substances, which enables faster transmission of electrical impulses.

Axon

A long, slender projection of a neuron that conducts electrical impulses away from the neuron's cell body.

Dendrite

Dendrites are branched extensions of a neuron that receive signals from other neurons and transmit them towards the cell body.

Node of Ranvier

Gaps in the myelin sheath along the axon of neurons where action potentials are generated.