test 1 bio 425 Exam Questions with correct
Answers
mycology is the study of _____ - correct answers✔✔ fungi
viruses are considered non-living due to their - correct answers✔✔ inability to replicate
outside of host cells
which of the following fields can be considered both basic and applied microbiology - correct
answers✔✔ genetics
you are working for a biotech company that is searching for new species of bacteria. you are
tasked with describing all bacteria living in the hot springs of yellowstone park. the best
technique to use is _____ - correct answers✔✔ molecular
the development of new products, technologies and processes based on biological system sis
called _____ - correct answers✔✔ biotechnology
______ was the first to describe microorganisms in 1665, while _____ was the first to view
bacteria - correct answers✔✔ robert hook/ antoni van leeuwenhok
_____ discovered the first antibiotic, penicillin, in 1929 - correct answers✔✔ alexander
fleming
now recognized and the third domain of life, the _____ were discovered by Woese and fox in
1977 - correct answers✔✔ archaea
, the higher the _____ of microscopes objective lens, the better the resolution - correct
answers✔✔ numerical aperture
______ differentiates bacteria based on the characteristics of their cell wall and represents
the most common and important differential stains in bacteriology - correct answers✔✔ gram
stain
DAP is an example of a _____, commonly used to quantify microbial cells in food, clinical and
environmental samples - correct answers✔✔ fluorescent
an advantage of using past-contrast microscopy over basic light microscopy of stained cells is
_____ - correct answers✔✔ enhanced contast
_______ microscopy uses a cantilever, repulsive force and laser detection to produce 3D
images of cells without the need for fixatives or coatings - correct answers✔✔ atomic force
electron microscopes achieve high er magnifications than light microscopes because - correct
answers✔✔ electron beams have smaller wavelengths than visible light
you have dissevered a new microorganism and want to visualize small (1 nm) internal features
of the new bug in detailed, 2D pictures.
the best microscopy technique is - correct answers✔✔ transmission electron
you are working at bye-bye biofilms, inc, a biotech company investigating how to prevent the
growth of microorganisms on ship hulls. you have samples of thick biofilms from cargo ships
and need to visualized the different layers of the sample to identify the organisms involved in
its formation. the best microscopy technique for your project is - correct answers✔✔ confical
laser scanning microscopy
pairs of spherical shaped bacteria are called - correct answers✔✔ diplococcus
Answers
mycology is the study of _____ - correct answers✔✔ fungi
viruses are considered non-living due to their - correct answers✔✔ inability to replicate
outside of host cells
which of the following fields can be considered both basic and applied microbiology - correct
answers✔✔ genetics
you are working for a biotech company that is searching for new species of bacteria. you are
tasked with describing all bacteria living in the hot springs of yellowstone park. the best
technique to use is _____ - correct answers✔✔ molecular
the development of new products, technologies and processes based on biological system sis
called _____ - correct answers✔✔ biotechnology
______ was the first to describe microorganisms in 1665, while _____ was the first to view
bacteria - correct answers✔✔ robert hook/ antoni van leeuwenhok
_____ discovered the first antibiotic, penicillin, in 1929 - correct answers✔✔ alexander
fleming
now recognized and the third domain of life, the _____ were discovered by Woese and fox in
1977 - correct answers✔✔ archaea
, the higher the _____ of microscopes objective lens, the better the resolution - correct
answers✔✔ numerical aperture
______ differentiates bacteria based on the characteristics of their cell wall and represents
the most common and important differential stains in bacteriology - correct answers✔✔ gram
stain
DAP is an example of a _____, commonly used to quantify microbial cells in food, clinical and
environmental samples - correct answers✔✔ fluorescent
an advantage of using past-contrast microscopy over basic light microscopy of stained cells is
_____ - correct answers✔✔ enhanced contast
_______ microscopy uses a cantilever, repulsive force and laser detection to produce 3D
images of cells without the need for fixatives or coatings - correct answers✔✔ atomic force
electron microscopes achieve high er magnifications than light microscopes because - correct
answers✔✔ electron beams have smaller wavelengths than visible light
you have dissevered a new microorganism and want to visualize small (1 nm) internal features
of the new bug in detailed, 2D pictures.
the best microscopy technique is - correct answers✔✔ transmission electron
you are working at bye-bye biofilms, inc, a biotech company investigating how to prevent the
growth of microorganisms on ship hulls. you have samples of thick biofilms from cargo ships
and need to visualized the different layers of the sample to identify the organisms involved in
its formation. the best microscopy technique for your project is - correct answers✔✔ confical
laser scanning microscopy
pairs of spherical shaped bacteria are called - correct answers✔✔ diplococcus
