Definition

A type of protein that plays a key role in muscle movement and helps maintain the shape of cells. It works together with another protein called myosin to allow muscles to contract and cells to move.

Example

Actin plays a crucial role in muscle contraction and cellular movement.

Conversation

Did you know that actin plays a huge role in our muscle movements?

Really? I always thought it was just myosin doing all the work.

Nope, they work together! Actin helps with muscle contraction too.

That’s interesting! I should read more about how our muscles function.

Synonyms & Antonyms

Root Explanation

Actin is derived from the Greek word "aktis" (meaning ray or beam). The term refers to the protein that forms part of the cytoskeleton in cells, resembling rays or filaments.

Memory Tip

Think of the Greek word for ray or beam, 'aktis', to remember that 'actin' relates to the filamentous structure in cells, much like rays extending outward.

Visually Confused Words