Portage Learning BIOD 171 Module 3 || with 100% Verified
Solutions.
Does phase contrast microscopy require staining? correct answers No
Simple staining is used mostly for... correct answers A quick observance
Simple staining uses __________ dye. correct answers Positively charged
Acid fast stain is used for... correct answers bacteria resistant to traditional staining; mostly for
mycobacterium tuberculosis
Resolution correct answers distance between two objects at which the objects can still be seen as
separate
Contrast correct answers difference in light absorbance between 2 areas
Dark field microscopy light correct answers reflects light off of specimen at an angle
Can you see intracellular structures with a dark field microscope? correct answers No
What microscope can capture in 3-D? correct answers Confocal
What are the two types of electron microscopes? correct answers transmission electron
microscope (TEM) and scanning electron microscope (SEM)
What is the difference between TEM and SEM? correct answers TEM passes through the
sample, SEM reflects off the surface
Gram staining was developed by correct answers Hans Christian Gram in 1884
Gram-positive bacteria shows that correct answers there is a thick peptidoglycan cell wall
What color will gram positive bacteria stain? correct answers purple
What color will gram negative bacteria stain? correct answers pink
A gram negative bacteria has a... correct answers think peptidoglycan cell wall
Differential Stain correct answers a stain that distinguishes objects on the basis of reactions to
the staining procedure
What are the two types of cell fixation? correct answers Heat fixation and Chemical fixation
What does Giesma detect? correct answers Blood parasites
Solutions.
Does phase contrast microscopy require staining? correct answers No
Simple staining is used mostly for... correct answers A quick observance
Simple staining uses __________ dye. correct answers Positively charged
Acid fast stain is used for... correct answers bacteria resistant to traditional staining; mostly for
mycobacterium tuberculosis
Resolution correct answers distance between two objects at which the objects can still be seen as
separate
Contrast correct answers difference in light absorbance between 2 areas
Dark field microscopy light correct answers reflects light off of specimen at an angle
Can you see intracellular structures with a dark field microscope? correct answers No
What microscope can capture in 3-D? correct answers Confocal
What are the two types of electron microscopes? correct answers transmission electron
microscope (TEM) and scanning electron microscope (SEM)
What is the difference between TEM and SEM? correct answers TEM passes through the
sample, SEM reflects off the surface
Gram staining was developed by correct answers Hans Christian Gram in 1884
Gram-positive bacteria shows that correct answers there is a thick peptidoglycan cell wall
What color will gram positive bacteria stain? correct answers purple
What color will gram negative bacteria stain? correct answers pink
A gram negative bacteria has a... correct answers think peptidoglycan cell wall
Differential Stain correct answers a stain that distinguishes objects on the basis of reactions to
the staining procedure
What are the two types of cell fixation? correct answers Heat fixation and Chemical fixation
What does Giesma detect? correct answers Blood parasites
