Final answer:
To view the nucleus of a cell, use a light microscope starting with the scanning objective to locate the cell, then switch to the low and then high-power objectives for a detailed view. Staining can enhance nucleus visibility.
Step-by-step explanation:
To most easily view the nucleus of a cell during an experiment, you would use a light microscope. The nucleus, which houses the cell's DNA and directs the synthesis of ribosomes and proteins, is typically the most prominent organelle in a cell.
To see it, you would start with the scanning objective to locate the cell, and then switch to the low-power objective for a clearer view. To get a detailed view, switch to the high-power objective, which would allow you to see the nucleus and other internal structures like the nucleoplasm and chromatin with greater clarity.
For cells stained with dyes, as in prepared microscope slides, the nucleus may appear as a distinct sphere within the cell. The staining enhances the visibility of the nucleus and other cell structures. This enables you to study the nucleus and its components, such as the nuclear envelope, the nucleolus, and the DNA organized as chromatin within the nucleus.