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microbio portage final exam/2025 easy pass, Exams of Microbiology

University of Michigan (UM) - Ann ArborMicrobiology

What is the total magnification (relative to your eye) of a sample imaged with a 60x objective and a 10x eyepiece? - 600x magnification The number of phases (3 vs. 4) and/or the number of times a loop passes through a previous phase (once vs. multiple times) is acceptable provided what happens? - Well Either deviation is acceptable in practice as long as the resulting gradient contains within it the growth of individual colonies. Otherwise, the experiment need to be repeated. All multicellular microorganisms classified as Animalia are autotropic. - false Animalia, Plantae, Fungi and Protista are all classification under what type of organism? - Eukarya Assuming a constant (non-adjustable) light source power, identify the part of the microscope you would adjust to limit the amount of light entering the microscope. - iris At a generalized level, all cells are comprised of what? - childhood skin diseases near mouth/nose - impetigo

Typology: Exams

2024/2025

Available from 07/15/2025

karynwilliams
karynwilliams 🇺🇸

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microbio portage final exam/2025 easy pass
What is the total magnification (relative to your eye) of a sample imaged with a 60x objective
and a 10x eyepiece? - 600x magnification
The number of phases (3 vs. 4) and/or the number of times a loop passes through a previous
phase (once vs. multiple times) is acceptable provided what happens? - Well Either
deviation is
acceptable in practice as long as the resulting gradient contains within it the growth of
individual
colonies. Otherwise, the experiment need to be repeated.
All multicellular microorganisms classified as Animalia are autotropic. - false
Animalia, Plantae, Fungi and Protista are all classification under what type of organism? -
Eukarya
Assuming a constant (non-adjustable) light source power, identify the part of the microscope
you
would adjust to limit the amount of light entering the microscope. - iris
At a generalized level, all cells are comprised of what? - Macromolecules
childhood skin diseases near mouth/nose - impetigo
Define catabolism. - Catabolism is the process of breaking down larger molecules into
useful
pf3
pf4
pf5

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microbio portage final exam/2025 easy pass

What is the total magnification (relative to your eye) of a sample imaged with a 60x objective and a 10x eyepiece? - 600x magnification The number of phases (3 vs. 4) and/or the number of times a loop passes through a previous phase (once vs. multiple times) is acceptable provided what happens? - Well Either deviation is acceptable in practice as long as the resulting gradient contains within it the growth of individual colonies. Otherwise, the experiment need to be repeated. All multicellular microorganisms classified as Animalia are autotropic. - false Animalia, Plantae, Fungi and Protista are all classification under what type of organism? - Eukarya Assuming a constant (non-adjustable) light source power, identify the part of the microscope you would adjust to limit the amount of light entering the microscope. - iris At a generalized level, all cells are comprised of what? - Macromolecules childhood skin diseases near mouth/nose - impetigo Define catabolism. - Catabolism is the process of breaking down larger molecules into useful

energy sources. Define catabolism. - the process of breaking down larger molecules into useful energy sources. Describe the symptoms and treatment regimen for someone infected with Clostridium perfringens. - symptoms : muscle necrosis, swelling of infected areas, fever and intense gas production. Treatment: removal of infected tissue, with heavy antibiotic therapies. Described the main underlining differences between the Salk and Sabin polio vaccine. - Salk - inactivated form of virus & injected sabin- live weakned form & oral admin Identify what type of electron microscope was used to capture the following image and explain your choice. - Scanning Electron Microscope Because it is only showing the outside of the cell and not showing any subcellular organelles Shows shell image no organelles are visible. infection occurs at the time of birth - ophthalmia neonatorum infection of thin, transparent scleral tissue - conjunctivitis

True or False. Although there is no cure for tetanus, it can be prevented through vaccination. - true True or False. Pathogenic strains of bacteria tend to grow slower than normal non-pathogenic bacterial strains. - false True or False. The causative agent of conjunctivitis can be either bacterial or viral. - true True or False. When performing a dilution streak a new (or sterilized) loop is not required for each phase as long as the bacterial culture is pure. - false True or False. You would expect to see a viral envelope on a virus infecting a plant cell. - False Upon cellular injury, which metabolic process is involved during the growth and repair phases of the cell? - The anabolic process What is agar used for in microbiology? - Agar is used to create a solid, smooth surface on which microbes can grow. What is one of the main functions of light reactions? - to generate a proton concentration gradient to im turn, generate ATP. What is the smallest biological unit of life? - a cell What small (~30nm) single-stranded, non-enveloped RNA virus causes temporary or permanent

paralysis by infiltrating (infecting) motor neurons within the spinal cord, brain stem or motor cortex? - polio Which subtype of Influenza is the most virulent? - Influenza A While traveling abroad, should you be worried about coming into contact with either the Variola major or Variola minor viruses? - No. Both viruses are variants of smallpox and were eradicated in

Why does the alpha toxin (perfringolysin) produced during an infection of gas gangrene cause cell death? - The toxin perforates the membrane. It forms pores in the plasma membrane of host cells resulting in uncontrolled ion fluxes and eventually cell lysis and death.