What Is the Building Block of Proteins

question 45

Multiple Choice

What is the building block of proteins?

• A)carbon
• B)hydrogen
• C)enzyme
• D)amino acid

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Definitions:

Epigenetic Marks

Chemical modifications to the DNA or histone proteins that affect gene activity without altering the DNA sequence, influencing gene expression.

Refractory Period

The period immediately following a stimulus or action during which a nerve or muscle is unresponsive to further stimulation.

Neuron

A specialized cell transmitting nerve impulses; a nerve cell, the fundamental unit of the nervous system encoding and transferring information.

Myelin Sheath

A protective covering that surrounds axons of many neurons, facilitating the faster transmission of electrical impulses along the nerve cells.