Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
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
Normal Size Small Size show me how
Micro2 practice test
Microbiology 2 practice test on Bacillus, Anaerobes, non-Fermenters, Deltech Owe
| Question | Answer |
|---|---|
| Bacilli are gram negative or gram positive? | gram pos |
| Bacilli can form what 3 kinds of endospore? | 1. terminal 2. subterminal 3. central |
| Bacilli are catalase (POS or NEG?) and gelatinase (POS or NEG?)? | catalase POS, gelatinase POS |
| Bacilli form what color colonies on BAP? | white or grey (they form within 24 hours) |
| Bacillus subtilis is found in dirt and gets its food from the environment, making it a __. | saprophyte |
| Bacillus anthracis form microscopic chains that look like large, __ __ rods. | square ended |
| Bacillus anthracis forms cylindrical, __ placed spores. | centrally |
| Does Bacillus anthracis form zones of hemolysis on BAP? | No, it's nonhemolytic |
| Unlike B. subtilis, B. anthracis has what notable colonial morphology? | It forms a "curled margin" on BAP. |
| The biggest clue to identifying Bacillus anthracis is its colonial and cellular __. | morphology |
| Bacillus anthracis causes what 3 kinds of anthrax? | 1. cutaneous (least deadly) 2. pulmonary 3. gastroenteritis |
| A cutaneous infection by B. anthracis forms black pustules called __ that start out as tiny red dots. | eschars |
| What are the 3 common symptoms of cutaneous anthrax? | 1. pustules/eschars 2. enlarged spleen 3. fever |
| Pulmonary anthrax causes what kind of disease? | Woolsorter's |
| Whereas cutaneous anthrax can be detected in samples taken from eschars, pulmonary anthrax can be detected in the patient's __. | sputum |
| B. anthracis can cause gastroenteritis if it gets into __ or __ that is ingested. | milk or food |
| How do you treat Bacillus anthracis? | Ciprofloxacin, metronidazole, or doxycycline |
| B. anthracis can be prevented with a __ given to veterinarians and others in risk of exposure. | vaccine |
| While B. anthracis forms central spores, Bacilus cereus forms __ spores. | subterminal |
| Bacilus cereus forms __ beta-hemolytic colonies on BAP. | lavender |
| B. cereus usually causes food poisoning, but the symptoms depend on which form it is in. What are the 2 forms? | 1. emetic (vomiting/infected rice) 2. diarrheal (meat or veg dishes) |
| Media for aerobic cultures should include what 3 plates? | 1. BAP 2. CHOC 3. MAC |
| What are the acceptable percentages for the atmosphere of an anaerobic incubation environment? | 5% H2, 5-10% CO2, 85-90% N2 |
| How long can true anaerobes live in an oxygen rich environment? | 5 mins |
| Production of endospores is a means of __. | survival |
| What organism causes botulism? | Clostridium botulinum |
| What organism causes tetanus? | (Toxin from) Clostridium tetani. |
| What organism causes gas gangrene as well as food poisoning? | Clostridium perfringens |
| What organism forms a white membrane at the back of the throat? | Clostridium difficile |
| The condition where a white membrane formed by Clostridium difficile is actually called? | Pseudomembranous colitis |
Created by:
IsaacJ
Popular Biology sets