What is another name for actin filaments?
Microfilaments
What role do actin filaments have?
Provide structural support (especially to the plasma membrane) and contribute to some types of cell motility
what are actin filaments made of?
monomeric actin protein subunits that are assembled into a twisted, two-stranded polymer
what are microtubules?
hollow, tube-like cylinders that provide structural support, help generate cell polarity and are involved in some types of cell motility
what are microtubules made of?
alpha and beta-tubulin heterodimers
what are intermediate filaments?
strong, rope-like polymers that provide support for nuclear membrane or cell adhesion. can form hair and nails
what are intermediate filaments made out of?
formed from a family of related proteins such as keratin or laminin. subunits form a polymer
how tall are microfilaments?
7-9nm
how tall are microtubules?
25nm
how tall are intermediate filaments?
10nm
