Microscopy and Cell Studies Quiz

What is the purpose of a coverslip in microscope slide preparation?

• To enhance the color of the specimen

• To protect the microscope lens from liquids

• To provide a stable base for the slide

• To increase the magnification

Which stain is used to color starch blue-black?

• Congo red

• Iodine

• Crystal violet

• Methylene blue

What is the maximum resolution of a light microscope?

• 200 nm

• 100 nm

• 1 μm

• 0.5 nm

What is the first step in preparing a microscope slide using a liquid specimen?

• Cut a thin layer of tissue

• Add a few drops of the liquid sample

• Place a coverslip on top

• Add a drop of stain

What is the formula to calculate actual size from image size and magnification?

• Actual size = Image size + Magnification

• Actual size = Image size ÷ Magnification

• Actual size = Magnification ÷ Image size

• Actual size = Image size x Magnification

Which of the following is a characteristic of electron microscopes?

• They can view living specimens

• They have a maximum magnification of x2000

• They require a vacuum for operation

• They use visible light for imaging

What is the purpose of using a stage micrometer?

• To prepare the specimen

• To enhance the image quality

• To calibrate the eyepiece graticule

• To measure the size of the eyepiece graticule

What is the typical magnification of an eyepiece lens in a light microscope?

• x40

• x10

• x100

• x4

Which of the following stains is used to stain animal cell nuclei dark blue?

• Congo red

• Crystal violet

• Methylene blue

• Iodine

What is the maximum magnification achievable by a light microscope?

• x2000

• x500,000

• x400

• x1000