Quiz on Cytology and Genetics

What do light microscopes use as a source of light?

• Laser

• Infrared light

• Sunlight

• X-rays

What is the maximum theoretical magnification of light microscopes?

• 1000 times

• 5000 times

• 2000 times

• 10000 times

What type of microscope uses a stream of electrons?

• Fluorescence microscope

• Light microscope

• Inverted microscope

• Electron microscope

What is the resolving power of electron microscopes?

• 1.0 nm

• 0.5 μm

• 0.2 nm

• 0.2 μm

Which microscope is used for observing cell cultures?

• Stereomicroscope

• Polarized microscope

• Fluorescence microscope

• Inverted microscope

What type of microscope uses UV light?

• Light microscope

• Fluorescence microscope

• Electron microscope

• Stereomicroscope

What is the basic unit of all organisms?

• Tissue

• Cell

• Molecule

• Atom

Who formulated the cell theory?

• Darwin

• Virchow

• Schleiden and Schwann

• Pasteur

What type of cells are eukaryotic cells?

• Viruses

• Bacteria

• Fungi only

• Unicellular and multicellular organisms

What is the average thickness of a cell membrane?

• 20.0 nm

• 7.0-10.0 nm

• 5.0 nm

• 15.0 nm