MicroBiology BCS 200

a fundamental technique important in the laboratory and used by microbiologists for a variety of procedures such as, transferring cultures. inoculating media and isolation of pure cultures is known as:

aseptic technique

gamma hemolysis

bacteria is growing on the agar but there is no change in the appearance or color of the blood agar and no lysis of red blood cells

an organism under the light microscope in lab and have positively identified that it is multicellular and have determined that it belongs to the Domain Eukarya. You also observe no visible chloroplasts and can clearly identify separate visible body regions. This organism must belong to____________.

kingdom Animalia

alpha hemolysis

lysis of red blood cells occurs but the iron in the RBC is not consumed as a food source

serial dilution

method used to dilute a substance in a stepwise manner into solution with a constant factor of 10

If you were viewing a bacterial slide using immersion oil you are at what magnification?

1000x

beta hemolysis

this is due to the lysis of red blood cells, in blood agar, and the complete absorbance of the nutrients from the red blood cells, leaving behind a clear zone on the agar.

correct procedure for washing your hands

Wet your hands, apply soap, rub hands together while singing Happy Birthday twice, rinse well and dry, use the paper towel to turn off the faucet.

the appearance of a greenish color with bacterial growth on blood agar

alpha hemolysis

When talking about microscopy in this laboratory parcentric means?

aseptic technique

in this type of hemolysis a clear zone is left behind in the agar

beta hemolysis

this is the complete lysis of red blood cells on blood agar where all the contents of the cell were consumed as a nutritional source

beta hemolysis

differential media is a type of specialty media which?

contains specific dyes that cause a color change as different bacteria grow and produce waste products

one difference between the two techniques (spread plate method & streak plate method) is that the "spread plate method" is used to evenly distribute the bacteria across the entire plate and a similarity is the end result should produce pure colonies in both methods.

true

How to use a Fire Extinguisher

PASS Pull Aim Squeeze Sweep

The new GHS system provides information on the labels of the chemicals that you will use in lab. What does GHS stand for?

Global Harmonized System

organism under the light microscope in lab and have positively identified that it is single celled. It has no internal membrane bound organelles. It clearly has several hairlike structures protruding from one end of an oblong cell shape. Your instructor tells you these are flagella. This organism belongs to____________.

Kingdom Bacteria