What is the primary function of actin filaments in the cell?

What is the significance of polarity in actin filaments?

How are actin filaments organized in the cell cortex?

What is the effect of rapid ATP hydrolysis on actin filament stability at the minus end?

What is the difference between G actin and F actin?

What is the characteristic arrangement of actin filaments in bundles?

How does actin filament cross-linking contribute to cellular function?