Exam 1 UTA Microbiology Questions with correct Answers
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Course
UTA Microbiology
Institution
UTA Microbiology
Exam 1 UTA Microbiology
Microbiology - Answer- The study of small organisms
Hippocrates was known as ___? - Answer- the father of western medicine
What did Hippocrates believe? - Answer- diseases were not caused by supernatural reason
Leeuwenhoek was known as __? - Answer- the father of...
Unicellular or multicellular, eukaryotic, cellulose wall - Answer- Algae
, Unicellular, eukaryotic, no cell wall - Answer- Protozoa
Unicellular or multicellular, eukaryotic, chitin wall - Answer- Fungi
Multicellular, eukaryotic, no cell wall - Answer- Helminths
Define wavelengths - Answer- The length between peaks
Define amplitude - Answer- Height of peaks or depths of troughs
Define frequency - Answer- The rate of peaks in time
As wavelength ___: frequency ___ - Answer- Increases, decreases
When does reflection occur? - Answer- When a wave bounces off a material
When does absorbance occur? - Answer- When a wave is captured and not as much
light is traveling through
When does transmission occur? - Answer- When a wave travels straight through a
transparent object
When does interference occur? - Answer- When a wave interacts with another wave
A wave can cancel/add to the effect of another wave? T/F - Answer- True
When does diffraction occur? - Answer- When light is bend or scattered by an object
opening
When does refraction occur? - Answer- When light changes its direction or speed
How can you describe the refractive index of water vs. that of glass? - Answer-
What is a refractive index? - Answer- The degree of change in transmission speed
a ___ lens will curve light to meet at a focal point - Answer- Convex
A ___ lens will refract light away from a focal point - Answer- Concave
What factors affect resolution? - Answer- Wavelength and numerical aperture
Who created the first simple microscope? - Answer- Antoine van Leeuwnhoek
Who invented the first compound microscope? - Answer- Zachariah's Janssen
What are the three types of microscopes? - Answer- Light, electron and scanning
probe
Which type of light microscopes are used in UTA labs? - Answer- Brightfield
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