What Are the Four Basic Forces in the Universe

question 4

Multiple Choice

What are the four basic forces in the universe?

• A) gravity, electric, magnetic, and strong nuclear
• B) gravity, electromagnetic, strong nuclear, and atomic
• C) gravity, electromagnetic, strong nuclear, and weak nuclear
• D) gravity, electric, magnetic, and atomic
• E) gravity, electromagnetic, atomic, and nuclear

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Definitions:

α-Helix

A common structural motif in proteins, characterized by a right-handed coiled configuration of the polypeptide chain.

Secondary Structure

The local folded structures that form within a polypeptide due to interactions between atoms in the backbone.

Globular Protein

Proteins that are roughly spherical in shape, often soluble in water and serving roles in catalysis, regulation, and transport.

Aspartic Acid

A non-essential amino acid involved in the synthesis of proteins and in the urea cycle of mammals.