HCC MICROBIOLOGY LAB TEST 1

HCC MICROBIOLOGY LAB TEST 1
Lab Safety Rules - Answers :Disinfect lab table before and after lab session with a
disinfectant known to kill the organisms handled.

Magnification/resolution - Answers :are inversely proportional. Magnification is how
large an image is. Resoloution is how clear the image is. The more magnification the
more unclear it will be.

Sub stage condenser - Answers :has a lens that concentrates and focuses light onto the
subject.

Iris diaphragm - Answers :is the device that controls the amount of light going onto the
object.

Total Magnification - Answers :Ocular lens (10x) x Objective Lenses (4,10,40,100)

Objective Lens (Scanning objective) - Answers :magnifies the image 4x. Total
magnification would be 40.

Objective Lens (Low power objective) - Answers :magnifies the image 10x. Total
magnification would be 100.

Objective Lens (High dry objective) - Answers :magnifies the image 40x. Total
magnification would be 400.

Objective Lens (Oil immersion objective) - Answers :magnifies the image 100x. Total
magnification would be 1000.

Paramecium - Answers :Kingdom Protista

Spirogyra - Answers :Kingdom Protista

Saccharomyces - Answers :Kingdom Fungi (purple clusters)

Streptoocci - Answers :Kingdom Monera (purple blob with clusters around edges)

Baccilus - Answers :Kingdom Monera (purple stripes on highway)

Spirilla - Answers :Kingdom Monera

Chloroplasts - Answers :are the organelles you observe when viewing the spirogyra
under the microscope. This is what gives spirogyra their GREEN color.

Heat Fix - Answers :This final step kills the bacteria and makes it stick to the slide.