Microscopes

Why are stains used when using microscopes?

• To protect the microscope
• To add contrast to the specimen
• To prevent the slide from drying out
• To magnify the specimen

What is the main difference between light microscopes and electron microscopes?

• Type of specimen
• Magnification power
• Resolution limit
• All of the above

What changes the magnification of a microscope?

• Coverslip and slide
• Stains and specimen
• Needle and coverslip
• Eyepiece and objective lens

What is the maximum magnification of an electron microscope?

• ×1500
• ×3 to ×9
• ×275
• ×1 000 000

What does magnification mean?

• Protecting the microscope
• Examining thin slices of cells
• Increasing the size of the specimen
• Adding contrast to the specimen

What is the purpose of a coverslip in microscopy?

• To prevent the slide from drying out
• To magnify the specimen
• To add contrast to the specimen
• To protect the microscope

What does magnification refer to in microscopy?

• The size of the image compared to the specimen
• The size of the microscope
• The size of the specimen
• The size of the objective lens

What type of microscope would produces a 3D image?

• Light microscope
• Electron microscope

What is the maximum magnification with a light microscope?

• ×275
• ×3 to ×9
• ×1 000 000
• ×1500

When was the electron microscope developed?

• 22nd century
• 21st century
• 19th century
• 20th century