1. part of a cell that is seen in resting cells that is missing in cells that are dividing is the
2. part of a cell that is seen in dividing cells that is not visible in resting cells is the

First one  -  Nucleus

Second one  -  Chromosomes

Explanation:

answer; //the above statement is (false);

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.