Outside of a Living Cell,the Virus Exists as a Particle

question 62

Multiple Choice

Outside of a living cell,the virus exists as a particle called a(n) ________,which is little more than a macromolecular package.

• A)virulent
• B)virusette
• C)virulant
• D)virion
• E)infectoid

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Definitions:

Structural Components

The physical parts or elements that make up an object, system, or organism, providing it with stability and form.

Microfilaments

Small, rod-like structures present in the cytoplasm of all eukaryotic cells, composed mainly of the protein actin, and involved in various forms of cell movement and in the maintenance of the cell's shape.

Rodlike Structures

Any elongated, cylindrical shapes or components found in biological organisms or cells, often referring to the physical structure of certain proteins or cellular organelles.

Actin

The protein of which microfilaments consist. Actin, together with the protein myosin, is responsible for muscle contraction.