Which cell structures are sometimes found attached to the endoplasmic reticulum

What happens during interphase? (1)the nucleus grows to its full size. (2)the cell grows to its full size. (3)the nucleus divides into two nuclei. (4)the cell divides into two cells.

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes