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MCB3020 Exam USF Exam Questions and Answers
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What is Robert Hooke known for? - Answer-He is the first person to see a cell. Also Helped construct the first microscope. What is Antonie van Leeuwenhoek known for? - Answer-Made His own Microscope (Single-lens), Observations also published by the Royal Society. Malpighi and Odierna - Answer...

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  • October 9, 2024
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  • 2024/2025
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MCB3020 Exam USF Exam Questions
and Answers
What is Robert Hooke known for? - Answer-He is the first person to see a cell. Also
Helped construct the first microscope.

What is Antonie van Leeuwenhoek known for? - Answer-Made His own Microscope
(Single-lens), Observations also published by the Royal Society.

Malpighi and Odierna - Answer-Published two volumes of microscopic observations of
the human excretory system in the Royal Society

spontaneous generation - Answer-the mistaken idea that living things arise from
nonliving sources

Which scientist's sought to debase spontaneous generation? - Answer-Redi and
Pasteur

Francesco Redi - Answer-This scientist disproved spontaneous generation by showing
that maggots do not spontaneously arise from decaying meat.

Louis Pasteur - Answer-A French chemist, this man discovered that heat could kill
bacteria that otherwise spoiled liquids including milk, wine, and beer. (Swan neck
experiments)

Robert Koch - Answer-Debased miasma theory of disease causation

Miasma Theory of Disease - Answer-a discredited theory in which 'bad air' was
accepted as the cause of diseases.

What are the three domains? - Answer-Bacteria, Archaea, Eukarya

Traits shared by all domains of life - Answer-dsDNA, RNA pol, Protein domains,
aqueous cytosol

Traits that differ between domains - Answer-Size, Metabolism, gene orientation,
chromosome, multicellularity

What are the microbial eukaryotes - Answer-Protozoa, Fungi, Algae

Lynn Margulis - Answer-Developed the Endosymbiotic Theory.

Endosymbiosis - Answer-A theorized process in which early eukaryotic cells were
formed from simpler prokaryotes.

, Viruses - Answer-Considered by scientists to be Non-living particles

size of microbes - Answer-Can Differ in size by several orders of magnitude

What % of the ocean is chlorophyll? - Answer-60%

Bacilli - Answer-rod shaped

Cocci - Answer-spherical

Spirochetes - Answer-spiral-shaped bacteria that have flexible walls and are capable of
movement

What is resolution? - Answer-The ability to clearly distinguish the individual parts of an
object

light microscope (LM) - Answer-Rely on absorption of light by the target object(s)

electron microscope (EM) - Answer-Images are resolved via an electron field

Atomic Force Microscopy (AFM) - Answer-map specimen topography (3D), specimen
can be alive

Gram stain - Answer-A staining method that distinguishes between two different kinds of
bacterial cell walls.

Process for gram staining - Answer-1)crystal violet
2) iodine
3) ethanol
4)safranin

negative stain - Answer-colors the background, which makes capsules more visible

acid fast stain - Answer-targets mycolic acids in species of Mycobacterium

spore stain - Answer-malachite green binds to endospore coat of spore-forming bacteria

fluorescence microscopy - Answer-uses a fluorescent dye that emits fluorescence when
illuminated with ultraviolet radiation

The specificity of a fluorophore is determined in part by? - Answer-Chemical affinity,
labeled antibodies, DNA hybridization

Three main regions of a bacterial cell - Answer-1) envelope
2) cytoplasm

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