Bio 230 PSU EXAM 1 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Light traveling through something, like stained glass, and to your eyes; Sample
must be thin
Answer:
enough to allow the transmission of light; Staining improves contrast to better
identify
structures transmission light microscopy
Q: uses a beam of electrons traveling through a prepared specimen; Very thin
sections; Heavy
Answer:
metals are used in prep to improve contrast transmitted electron microscopy
Q: _ light for routine cell visualization
Answer:
transmitted
,Bio 230 PSU EXAM 1 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: _ or _ electron microscopy for high magnification work
Answer:
transmitted, scanning
Q: _ microscopy for visualizing specific cellular structures
Answer:
epiflourescence
Q: Considering the conservation of energy, light used to excite a fluorescent protein
has
Answer:
____________ energy compared to the emitted light more
, Bio 230 PSU EXAM 1 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Electron scanning and transmission microscopy have ___________ resolution
because
Answer:
accelerated electrons have a ____________ wavelength compared to visible light.
higher,
shorter
Q: What is special about RNA that would suggest it evolved first?
Answer:
(2 things) catalyst and information storage
Q: no nucleus; transcription and translation occur almost simultaneously
Answer:
prokaryotes
Latest 2026 Update
Q: Light traveling through something, like stained glass, and to your eyes; Sample
must be thin
Answer:
enough to allow the transmission of light; Staining improves contrast to better
identify
structures transmission light microscopy
Q: uses a beam of electrons traveling through a prepared specimen; Very thin
sections; Heavy
Answer:
metals are used in prep to improve contrast transmitted electron microscopy
Q: _ light for routine cell visualization
Answer:
transmitted
,Bio 230 PSU EXAM 1 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: _ or _ electron microscopy for high magnification work
Answer:
transmitted, scanning
Q: _ microscopy for visualizing specific cellular structures
Answer:
epiflourescence
Q: Considering the conservation of energy, light used to excite a fluorescent protein
has
Answer:
____________ energy compared to the emitted light more
, Bio 230 PSU EXAM 1 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Electron scanning and transmission microscopy have ___________ resolution
because
Answer:
accelerated electrons have a ____________ wavelength compared to visible light.
higher,
shorter
Q: What is special about RNA that would suggest it evolved first?
Answer:
(2 things) catalyst and information storage
Q: no nucleus; transcription and translation occur almost simultaneously
Answer:
prokaryotes