Question

Two views of the same onion epidermal cells, as seen with a compound light microscope, are shown in the diagram below. What was most likely done to change the view from A to B? *

A. Methylene Blue solution was added to the cells.
B..The 40x objective was switched to the 10x objective.
C. The 10x objective was switched to the 40x objective.
D. Salt water was added to the cells

Answer 1

Answer:    A

Explanation:

The magnifiacation doesn't change. We aren't seeing a more detail or less detail view of the cells. Thus this eliminates B & C.

There is no change in the turgidity of the cell or in the cell membrane. Thus this eliminates D.

However, B looks darker than. This is usually a sign that the cells have been stained. This was perhaps done with Methylene Blue.