Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Unit 1 Chapter 8

Use of Colonial Morphology for the Presumptive Identification of Microorganisms

Define plate reading interpretation of Gram-stained smears from clinical specimens and microbial colonies. Provides initial identification of microorganism by microscopic characterization, description of physical growth characteristics of microorganisms on laboratory medium
Define hemolysis dissolution or breaking apart pertaining to red blood cells; a reaction, especially caused by enzymatic or toxin activity of bacteria, observed in the medium immediately surrounding or underneath the colony.
List and explain all types of hemolysis α-Hemolysis- is a partial lysing of erythrocytes around an under the colony that results in a green discoloration β-Hemolysis- is a complete clearing of erythrocytes around or under the colonies because of the because of the complete lysis of RBCs.
Define colony morphology and list descriptive terms used and explain or draw them colony characteristics and form. size form or margin elevation density color consistency pigment odor
Define pigment and give examples coloring matter or substance: green, sometimes metallic (P. aeruginosa) brick-red (Serratia marcescens) blue (Kluyvera spp.) purple ( Chromobacterium violaceum) brown-black (Prevotella melaninogenica)
Define odor and give examples the odor is determined when the lid of the culture plate is removed and it dissipates into the surrounding area old socks(S.aureus); grapelike(P.aeruginosa); putrid(P.mirabilis); mousy(Haemophilus spp); freshly plowed field (Nocardia spp)
Created by: luceroapril