Microbiology 2117 Midterm Test 1 Questions and Answers 100% Correct

Microbiology 2117 Midterm Test 1 Questions and
Answers 100% Correct
arm

Supports the body and stage and is attached to the base

base

supports the microscope

stage

flat surface that holds the microscope slide in position

substage light

light source of microscope

condenser

concentrates light directly through the specimen

iris diaphragm

increases or decreases the light intensity/contrast

oil immersion

allows you to see the specimen at 100x (1000 total magnification)

objective lenses

used to magnify the slide sample image

coarse adjustment knob

,Moves the stage up and down for focusing (only used for 4x and 10x, the red and yellow

objective lenses)

fine adjustment knob

Moves the stage slightly to sharpen the image (used for 40x and 100x, the blue and black

objective lenses)

nosepiece

holds the objective lenses

ocular lens

Eyepiece of a microscope

total magnification

objective lens multiplied by the ocular lens (10x)

40x

total magnification for red objective lens

100x

total magnification for yellow objective lens

400x

total magnification for blue objective lens

1000x

total magnification for black objective lens

, coccus

name the shape

bacillus

name the shape

spirilla

name the shape

spirochete

name the shape

vibrio

name the shape

bacterial capsule

name the stained bacteria cell envelope layer

peritrichous

what type of flagella

amphitrichous

what type of flagella

lophotrichous

what type of flagella