STRAIGHTERLINE MICROBIOLOGY LAB BIO250L LAB TWO CULTURING ASEPTIC TECHNIQUE CERTIFICATION EVALUATION 2026 QUESTIONS WITH SOLUTIONS GRADED A+

STRAIGHTERLINE MICROBIOLOGY LAB
BIO250L LAB TWO CULTURING ASEPTIC
TECHNIQUE CERTIFICATION EVALUATION
2026 QUESTIONS WITH SOLUTIONS
GRADED A+

⩥ a compound microscope is a type of optical microscope. Answer: true


⩥ the _______ sits below the stage and varies the field for viewing the
specimen. Answer: diaphragm


⩥ the depth of field is independent of the total magnification factor.
Answer: false


⩥ main component of an optical microscope that is used to focus an
image at a high power of magnification is the _______. Answer: fine
adjustment knob


⩥ the slide is placed on the ____ of an optical microscope. Answer:
stage


⩥ depth of field refers to the distance range that is in focus at a given
time. Answer: true

, ⩥ when calculating total magnification of a microscope, ______ should
be considered. Answer: both the ocular lens and the objective lens


⩥ the oil immersion lens provides optimal viewing of large specimens.
Answer: false


⩥ the field of view ____ as magnification increases. Answer: decreases


⩥ when creating a wet-mount slide, an individual should drop the cover
slip on the top of a water droplet placed on the slide without touching it
to the slide first. Answer: false


⩥ exposure to bright light can inhibit microbial growth. Answer: true


⩥ goggles, gloves, and a face mask should be worn whenever working
with active cultures. Answer: true


⩥ microbiology lessons often require incubation periods and active
cultures. Answer: true


⩥ most microbiology lessons can be completed in 1-2 hours.. Answer:
false