Microscope Functionality and Limitations

The video tutorial covers the use of light microscopes to view animal and plant cells. It explains how to operate a light microscope, including focusing and calculating magnification using the eyepiece and objective lenses. The tutorial also details the preparation of slides with methylene blue staining for better cell visibility. Finally, it compares light microscopes with electron microscopes, highlighting their advantages and limitations.

What is the primary tool used to view animal and plant cells in action?

• Electron microscope

• Magnifying glass

• Light microscope

• Telescope

How do you calculate the total magnification of a microscope?

• Divide the eyepiece magnification by the objective magnification

• Subtract the objective magnification from the eyepiece magnification

• Multiply the eyepiece and objective magnifications

• Add the eyepiece and objective magnifications

What is the total magnification if the eyepiece is 10x and the objective is 4x?

• 400x

• 40x

• 14x

• 100x

What is the purpose of adding methylene blue to a slide?

• To clean the slide

• To magnify the specimen

• To stain the cells for better visibility

• To protect the specimen

What is the final step in preparing a slide for observation under a microscope?

• Adding the specimen

• Applying the stain

• Placing the cover slip

• Focusing the microscope

Which type of microscope allows the observation of live cells?

• Digital microscope

• Light microscope

• Electron microscope

• Scanning microscope

What is a disadvantage of using a light microscope?

• High cost

• Limited magnification

• Requires dead cells

• Complex setup

Why are electron microscopes not commonly used in schools?

• They are too expensive and require dead cells

• They are too small

• They are outdated technology

• They are not powerful enough

What is a benefit of using electron microscopes over light microscopes?

• They are cheaper

• They allow viewing of live cells

• They offer higher magnification

• They are more portable

What is a limitation of electron microscopes?

• They require dead cells

• They are limited in magnification

• They require live cells

• They can only view large objects