MMBIO 222 -- Quiz 1 questions with Complete Solutions

Antonie Van Leeuwenhoek Correct Answer-Dutch merchant, microbiologist. Discovered the microbial world. Called microbes, "animacules". Constructed over 250 microscopes that could magnify up to 300 times. Condenser Correct Answer-Focuses light through specimen. Iris diaphragm Correct Answer-Controls the amount of light entering the condenser. Resolving Power Correct Answer--Ability of a microscope to differentiate two closely spaced objects as being distinct from one another. -Can distinguish organisms that are 2 um apart. Numerical Aperture Correct Answer-Ability of a lens in a light microscope to gather light. Refraction Correct Answer-Light rays are bent or refracted as they travel through media like glass and air. Total Magnification w/ Oil Immersion Correct Answer-1000x