if a living cell were compared to a factory which part of the factory would be equivalent to the nucleus?

Do the following statements describe actin, myosin, both of the proteins or neither of the proteins? (a) contains a binding site for calcium (b) found in the i band (c) exists in a globular (g) form and a filamentous (f) form (d) contains a binding site for atp (e) is a component of the thin filament (f) is a component of the thick filament

Which individual below would be considered heterozygous? a.dd b.dd c.dd

What is the goal of cellular respiration