accurate solutions
Gram positive cell wall – Answer✅️
☑️-stain purple
-one membrane
-peptidoglycan THICK (10-100)
Gram negative cell wall – Answer✅️
☑️-stains red
- 2 membranes (plasma and outer)
- 1 sheet thick peptidoglycan in internal periplasmic space
Viruses is a – Answer✅️
☑️nucleic acid surrounded by a protein coat
What type of bacteria has copious amounts of catalase and superoxide
dismutase – Answer✅️ ☑️obligate aerobes
What bacteria uses small amount of catalase and superoxide dismutase? –
Answer✅️☑️microaerophilic
Example of a endotoxin – Answer✅️
☑️LPS that has a lipid A portion that is
extremely toxic
Example of exotoxin – Answer✅️
☑️protein secreted by bacteria to carry out
function (virulence factor)
What are the examples of exotoxin – Answer✅️
☑️cholera toxin, diptheria
toxin, botulism toxin, and tetanospasmin
, What is an advantage of biofilms – Answer✅️
☑️increased resistance to
antibiotics and disinfection
What typically have biofilm component – Answer✅️
☑️chronic bacterial
infections
-infections of indwelling medical devices (IVs/central lines), wound infection,
otitis media, CF lung infection, dental plaques, gingivitis, endocartitis
Role bacteria pili – Answer✅️
☑️attachment
Horizontal gene transfer mediated by bacteriophage –
Answer✅️ ☑️transduction
Horizontal gene transfer through direct contact – Answer✅️
☑️conjugation
Horizontal gene transfer through uptake of free DNA –
Answer✅️ ☑️transformation
When two viruses affect same cell and cause mixing of gene segments –
Answer✅️☑️reassortment
Bacterial shape between rods and coccus – Answer✅️
☑️coccobacillus
Pathogenic form of fungi that exists in both forms of yeast and mold –
Answer✅️ ☑️dimorphic
Specific laboratory test for candida albicans – Answer✅️
☑️germ tube test