Div 2 Lab Quiz 1

change microscope objectives by

rotating the nosepiece

coarse and fine focus knobs improve your view of the subjec byy

raising and lowering the stage

begin ____________________ to bring the slide into focus

adjusting the coarse focus knob

at a higher power begin by

adjusting the fine focus knob to bring a slide into focus

spherical bacterium, arranged into groups of 4

tetracoccus

spiral bacterium, arranged in clusters

staphylospirillium

straight bacterium arranged in chains

streptobacillus

type of bacterial diversity one

motility

type of bacterial diversity two

configuration

type of bacterial diversity three

shape

the bacteria in lab this week most associated with YOU is

staphyloccus epidermis

total mag available to you when using a microscope is

provided by combining that of the ocular and objective lens

bacillus and Rhodospirillum are both

motile bacteria

slides prepared for the observation of shape and configuration were prepared using

staining and fixing

slides for observation of bacterial motility in this lab were prepared using

a hanging drop and a a wet mount

it is acceptable to begin focusing using the 40z objective if you know the organism on the slide required a high magnification

FALSE

all bacteria are motile

FALE

After oil has been applied to the slide and the oil immersion lens rotation into place is is still acceptable to return to a lower magnification if desirable

FALSE

Oscillatoria is non-motile

FALSE

Gram negative bacteria do not stain

TRUE

Pili are primarily used for swimming

FALSE

Bacteria are prokaryotes

TRUE