Actin
/ˈæktɪn/
nounIntermediateCommonMedical
Meaning
Question
Definitions
1
A globular protein found in muscle and other cells, crucial for cell motility and structure.
/ˈæktɪn/
nounneutralIntermediate
Medical
A protein that forms microfilaments.
Actin filaments are involved in cell division.
💡 Simply: A protein that helps cells move and keep their shape.
More Examples
2
Muscle contraction relies on the interplay of actin and myosin.
How It's Used
Biology
"Actin is a crucial component of the cytoskeleton."
Cell Biology
"The interaction between actin and myosin drives muscle contraction."
From Greek 'aktis' meaning 'ray' or 'beam', referring to its filamentous structure.
The word's biological usage became prominent in the mid-20th century with advancements in cell biology.
Memory tip
Think 'act' – actin is active in cell movement.
Practice
actineacttin
Usage
10%Spoken
90%Written