Micro Final Exam LCs-Lectures 1-9 Test Questions and Answers

Micro Final Exam LCs-Lectures 1-9 Test
Questions and Answers




Select the characteristics of a microbe. Choose all that apply.

A. Too small to be seen with the unaided eye



B.Composed of cells



C. Primary role is to cause illness



D. Found almost everywhere - Answer-A and D



Did Pasteur's work support the theory of biogenesis or the theory of spontaneous generation?

A. Biogenesis



B. Spontaneous generation



C. Both

,D. Neither - Answer-A



Why are viruses not included in the three domain system of classification?

A. Viruses do not have plasma membranes



B. Viruses are not alive



C. Viruses do not have cells



D. Viruses do not have nuclei - Answer-B



Which of the following bacterial names is written correctly?

A. Staphylococcus aureus



B. Staphylococcus aureus



C. staphylococcus aureus



D. staphylococcus aureus



E. Staphylococcus Aureus - Answer-B



A bacterial cell is measured to be 4000 nm in length. Express this measurement in micrometers. -
Answer-4

, What is the total magnification with a 10X ocular lens when using the high-dry objective (40X)?

A. 10X



B. 40X



C. 50X



D. 100X



E. 400X



F. 4000X - Answer-E



Why is immersion oil necessary when using the 100X objective (1000X total magnification), but not
when using the lower power objectives?

A. The 100X objective lens is larger than the lower power objective lenses



B. The 100X objective lens is smaller than the lower power objective lenses



C. The 100X objective lens uses a shorter wavelength of light



D. The 100X objective uses a longer wavelength of light - Answer-B



What type of microscopy would you use if you wanted a detailed view of structures on the surface of a
paramecium (a unicellular protozoan)?

A. Brightfield