The noble gases are left out of the trends in atomic radii because there is great debate over the experimental values of their atomic radii.

The SI units for measuring atomic radii are the nanometer (nm) and the picometer (pm). 1 nm = 1 X 109 m; 1 pm = 1 X 10-12 m.

TLS Online TPP Program

#Id: 8325

#Section 3: Genetics, Cellular and Molecular Biology

Critical concentration (Cc)

minimal concentration of monomers at which filaments form

TLS Online TPP Program

#Id: 8324

#Section 3: Genetics, Cellular and Molecular Biology

The rate of addition of monomers is given by

rate constant kon (M–1 sec–1 )

The rate of loss is given by koff (sec–1)

TLS Online TPP Program

#Id: 8323

#Section 3: Genetics, Cellular and Molecular Biology

TLS Online TPP Program

#Id: 8322

#Section 3: Genetics, Cellular and Molecular Biology

Steady-state phase

G-actin monomers exchange with subunits at the filament ends, but there is no net change in the total length of filaments.

TLS Online TPP Program

#Id: 8321

#Section 3: Genetics, Cellular and Molecular Biology

Elongation phase

short oligomer rapidly increases in length by the addition of actin monomers to both of its ends, causing filament elongation

TLS Online TPP Program

#Id: 8320

#Section 3: Genetics, Cellular and Molecular Biology

The lag phase can be reduced or abolished entirely by adding premade nuclei.