It's purpose is to make different types of cells clearer and easier- to -see when viewed closely.
Methylene Blue
Yes.
Yes, because the methylene blue stain makes the organelles in eucharyotic cells visible to us in a basic microscope.
Methylene blue stains everything blue.
the ph of the stain on the bacteria caused by methylene blue would not affect it a lot since all methylene blue is supposed to do is make it visible on the microscope for e.g.
Methylene blue is an example.
no
Methylene blue
Nope - methylene blue is a stain. You need liquid indicator like phenolphthalein that responds to pH changes.
You can observe cheek cells
the counter stain is safranin 0.5%
Methylene blue stain is used to stain plant and animal cells.