MIP 300 Exam 1 CSU || with 100% Verified Solutions.
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MIP 300 1 CSU
What is the Zika virus? correct answers a virus that if women get while pregnant can cause the child to be born with microcephaly which entails a small head and severe brain damage, however if not pregnant you will just experience mild flu symptoms
How is the Zika virus spread? correct answers b...
MIP 300 Exam 1 CSU || with 100% Verified Solutions.
What is the Zika virus? correct answers a virus that if women get while pregnant can cause the child to be born with microcephaly which entails a small head and severe brain damage, however
if not pregnant you will just experience mild flu symptoms
How is the Zika virus spread? correct answers by mosquitoes in Brazil
The CDC has declared 3 antibiotic resistant bacteria serious threats, are they currently widespread right now? correct answers They are not currently widespread yet but they have the potential to become so and require urgent public health attention
What is CDIFF? correct answers a bacteria that spreads very easily, located mainly in hospitals, that causes severe diarrhea and can be deadly
What is CRE? correct answers a bacteria that can be deadly and infects the gut
What is Neisseria Gonorrhoeae? correct answers an STD that is becoming resistant to antibiotics
What is required by viruses? correct answers they must be inside a cell to replicate and are called
obligate intracellular parasites
Are viruses alive? correct answers It is a huge debate
What are 75% of the 80 new diseases discovered between 1980 and 2007? correct answers RNA viruses
What does it mean to be alive? correct answers It means to have a metabolism, to use or produce energy, and to replicate
From the meaning behind "being alive", what all do viruses do? correct answers they replicate, however they do not have a metabolism and they do not use or produce energy
What are the 3 domains used to classify microbes? correct answers 1. Bacteria
2. Archaea
3. Eukarya
Are there more humans or microbes on Earth? correct answers microbes
In the 3 domains used to classify microbes, how do the domains differ? correct answers they differ by having different ribosomal RNA sequences
What microbes do not fall in the 3 domains of classifying microbes? correct answers Viruses and
Prions
Which of the following are eukaryotic microbes? A. Viruses
B. Bacteria
C. Animals
D. Yeast
E. C and D correct answers D, not A or B because they are not eukaryotic, and not C because animals are not microbes
Viruses are classified in which domain?
A. Bacteria
B. Archaea
C. Eukarya
D. Viralae
E. None of the above correct answers E, because D does not exist as a domain and viruses do not
fall in A, B, or C
What is the magnification on a microscope? correct answers the objective lens x the eyepiece
What is the objective lens on a microscope? correct answers the specific magnifications - 10X, 40X, 100X - with X meaning the total magnification will be multiplied by 10 so for example 10X total magnification will be 100
What is the eyepiece on a microscope? correct answers the thing you look through to view the microbe which automatically magnifies by 10X
What is resolution when referring to a microscope? correct answers the ability of the lens to distinguish between objects that are close together, also called the resolving power
What is the best light microscope resolution? correct answers 0.2 um
What is the diameter of a human cell and from this diameter could you see a human cell using a light microscope? correct answers 10-100 um, yes you could see this on a light microscope
What is the diameter of a bacterial cell and from this diameter could you see it using a light microscope? correct answers 1 um, yes you could see this on a light microscope, however only to
see shape, size, and arrangement of bacteria
What is the diameter of a virus and from this diameter could you see it using a light microscope? correct answers 0.01 - 0.1 um, viruses are too small to see with a light microscope
What are the general sizes from biggest to largest of human cells, bacterial cells, and viruses? correct answers Human Cells > Bacterial Cells > Viruses
What do you see when looking through the eyepiece of a bright field microscope? correct answers the backfield will be bright and white and the specimen you're studying will be the color
you stain it, otherwise the specimen will be clear What is the total magnification? correct answers objective lens x 10
What does a bright field microscope require? correct answers it requires heat-fix and stained bacteria
What does it mean to heat fix a smear? correct answers it means to pass the slide through a flame
which kills them and makes the bacteria stick to the slide
What do you see when looking through the eyepiece of a dark field microscope? correct answers light is refracted by the organism, so the organism is bright and the backfield is dark
What does a dark field microscope require? correct answers nothing, heat-fix and stain is not required so you can look at live organisms
What do you see when looking through the eyepiece of a phase contrast microscope? correct answers it converts slight differences in refractive indexes into easily detected variations in light intensity so you can look at live cells intracellular structures or intracellular processes such as phagocytosis
How does a fluorescent microscope work? correct answers it uses a UV light to excite fluorescent molecules such as green fluorescent protein or fluorochrome labeled antibodies
What is a way that a fluorescent microscope can be used not involving antibodies? correct answers The organism takes up fluorescent dye directly such as green fluorescent protein and the
dead cells take up red dye
What is a way that a fluorescent microscope can be used involving antibodies? correct answers bacteria can be linked to antibodies which are linked to fluorochrome which is a fluorescent molecule
Describe the resolution difference between a light microscope and an electron microscope? correct answers an electron microscope resolution is 1000x better than a light microscope (5 x 10^-4 um)
How is an electron microscope different than a light microscope? correct answers the e- replace the light
Why is the resolution of an electron microscope so much better than a light microscope? correct answers because the wavelength of an e- beam is short so it bounces off things faster than light beams do
Describe the resolution of a scanning tunneling microscope. correct answers it is more powerful than an e- microscope with a smaller range
What is the size of algae and amoeba? correct answers 100 um
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