객관식
Which of the following statements about the cytoskeleton is false?
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2. Cell Chemistry & Cell Components
Introduction to the Cytoskeleton
객관식
Which of the following best describes actin filaments?
A
They are intermediate filaments that anchor organelles in place.
B
They are thick filaments that provide structural support to the cell.
C
They are hollow tubes that facilitate intracellular transport.
D
They are thin filaments involved in muscle contraction and cell movement.
검증된 단계별 안내1
Actin filaments are a key component of the cytoskeleton, which provides structural support to cells.
These filaments are classified as thin filaments, typically about 7 nm in diameter, and are composed of actin protein subunits.
Actin filaments play a crucial role in muscle contraction by interacting with myosin filaments, which are thicker.
In addition to muscle contraction, actin filaments are involved in various cellular movements, including cell division and motility.
Unlike intermediate filaments or microtubules, actin filaments are not hollow and do not primarily serve as anchors or transport pathways within the cell.
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