BIO-101-005 Lab Quiz 2 Greenville Technical College – Study Guide, Notes & Practice
Questions (2026 Updated)
why are GTC microscopes called compound microscopes? - ANS ✔✔because it has two lenses,
the ocular lens and objective lens
which objective should you use when mounting and taking off a slide? why? - ANS ✔✔scanning,
to prevent breaking it
scanning objective - ANS ✔✔red stripe, 4x
low power objective - ANS ✔✔yellow stripe, 10x
high power objective - ANS ✔✔blue stripe, 40x
what is TM? - ANS ✔✔ocular magnification x objective magnification
what is the highest TM with GTC microscopes? - ANS ✔✔400x; 10x times 40x
what is FOV? - ANS ✔✔total amount of specimen that is visible; decreases when object is
magnified
how is FOV calculated? - ANS ✔✔FOVH = FOVS x (MAGSCAN/MAGHIGH)
what is the difference between a prokaryote and a eukaryote? - ANS ✔✔prokaryote = DNA not
in nucleus
eukaryote = DNA in nucleus
, cocci bacteria - ANS ✔✔little round circles
bacilli bacteria - ANS ✔✔long rod shapes
spirilla bacteria - ANS ✔✔small spiral shapes
how do you identify Gram-positive? - ANS ✔✔they are purple/blue and have a thick layer of
peptidogylcan in cell walls
how do you identify Gram-negative? - ANS ✔✔they are pink and have a thin layer of
peptidogylcan in cell walls
what three organelles do plant cells have that animal cells don't? - ANS ✔✔cell wall,
chloroplasts, central vacuoles
what organelles are common to plant cells and animal cells? - ANS ✔✔nucleus, mitochondria,
endoplasmic reticulum, golgi apparatus, peroxisomes, cell membrane
what organelle does an animal cell have that plant cell doesn't? - ANS ✔✔lysosomes
what is the function of the central vacuole? - ANS ✔✔stores waste, nutrients, and water
cytoplasmic streaming - ANS ✔✔circular flow of cytoplasm within cells
what do scientists use to stain animal cells? - ANS ✔✔methylene blue
what do scientists use to stain plant cells? - ANS ✔✔iodine
Questions (2026 Updated)
why are GTC microscopes called compound microscopes? - ANS ✔✔because it has two lenses,
the ocular lens and objective lens
which objective should you use when mounting and taking off a slide? why? - ANS ✔✔scanning,
to prevent breaking it
scanning objective - ANS ✔✔red stripe, 4x
low power objective - ANS ✔✔yellow stripe, 10x
high power objective - ANS ✔✔blue stripe, 40x
what is TM? - ANS ✔✔ocular magnification x objective magnification
what is the highest TM with GTC microscopes? - ANS ✔✔400x; 10x times 40x
what is FOV? - ANS ✔✔total amount of specimen that is visible; decreases when object is
magnified
how is FOV calculated? - ANS ✔✔FOVH = FOVS x (MAGSCAN/MAGHIGH)
what is the difference between a prokaryote and a eukaryote? - ANS ✔✔prokaryote = DNA not
in nucleus
eukaryote = DNA in nucleus
, cocci bacteria - ANS ✔✔little round circles
bacilli bacteria - ANS ✔✔long rod shapes
spirilla bacteria - ANS ✔✔small spiral shapes
how do you identify Gram-positive? - ANS ✔✔they are purple/blue and have a thick layer of
peptidogylcan in cell walls
how do you identify Gram-negative? - ANS ✔✔they are pink and have a thin layer of
peptidogylcan in cell walls
what three organelles do plant cells have that animal cells don't? - ANS ✔✔cell wall,
chloroplasts, central vacuoles
what organelles are common to plant cells and animal cells? - ANS ✔✔nucleus, mitochondria,
endoplasmic reticulum, golgi apparatus, peroxisomes, cell membrane
what organelle does an animal cell have that plant cell doesn't? - ANS ✔✔lysosomes
what is the function of the central vacuole? - ANS ✔✔stores waste, nutrients, and water
cytoplasmic streaming - ANS ✔✔circular flow of cytoplasm within cells
what do scientists use to stain animal cells? - ANS ✔✔methylene blue
what do scientists use to stain plant cells? - ANS ✔✔iodine
