MICROBIOLOGY FINAL EXAM QUESTIONS AND
ANSWERS
What is found in ALL prokaryotic organisms? - Answers - Ribosomes
What is the best description of the log phase of a bacterial growth curve? - Answers -
Populations double under optimum conditions
Through feedback inhibition a noncompetitive inhibitor of enzyme activity would... -
Answers - Bind to the allosteric site of the enzyme and stop the reaction
Yeast infections such as thrush are caused by what? - Answers - Candida albicans
The outer protein coat of a simple virus particle is called? - Answers - Capsid
In the disease cycle of animal viruses(Lysogenic), uncoating takes place between which
two stages? - Answers - Penetration and biosynthesis
What would be used to sterilize disposable prepackaged gloves? - Answers - Gamma
Which type of hepatitis might you acquire by eating raw tomatoes or green onions at a
restaurant? - Answers - Hepatitis A
The bacteria that causes meningitis usually attach and multiply in this area of the body -
Answers - Upper respiratory system
Helper T cells... - Answers - Function in both humoral and cell-mediated immune
function activation
The function of chemical substances such as histamine and leukotrienes would be -
Answers - To stimulate inflammation
A cell is said to be _______________ when its cell wall is permeable to foreign DNA -
Answers - Competent
An enzyme that assembles free nucleotides to make a molecule of RNA is - Answers -
RNA polymerase
What do Rickettsias and Chlamydias have in common with viruses? - Answers - They
are both obligated to live inside of a host cell
Who discovered penicillin? - Answers - Alexander Flemming
, What is the difference between fimbriae and pili? - Answers - Pili is involved in bacterial
sex(conjugation), whereas fimbriae is just for attachment
New strains of the flu are made through _______________ _______________. -
Answers - Antigenic shifts
Prokaryotic ribosome subunits = - Answers - 50 + 30 = 70
Eukaryotic ribosome subunits = - Answers - 60 + 40 = 80
Fermenters - Answers - Homolactic, Alcohol, Ethanol
The prefix for fungi is - Answers - Myco-
could be used in the word Mycology (the study of fungi) or Mycoses (a fungi-related
disease)
Endotoxin - Answers - Gram negative
Exotoxin - Answers - Gram positive
Lytic - Answers - The virus hijacks the cell and then destroys it
Lysogenic - Answers - The virus integrates itself into the DNA and stays there
indefinitely
What is the least effective antibiotic? - Answers - Penicillin
What does betalactimase do? - Answers - Creates resistance to penicillin
Chlamydia has _____________ bodies - Answers - elementary
Treatment for tetanus? - Answers - If you have been vaccinated (DTaP) before
exposure:
If you have not been vaccinated: Tetanus immune globulin
What is the leading cause of blindness? - Answers - Trachoma
What causes trachoma? - Answers - Chlamydia
Varicella zoster aka - Answers - Chicken pox
What bacteria causes cavities? - Answers - Streptococcus mutans
Bacteria use - Answers - CAPSULES
Where does transcription occur? - Answers - The nucleus
ANSWERS
What is found in ALL prokaryotic organisms? - Answers - Ribosomes
What is the best description of the log phase of a bacterial growth curve? - Answers -
Populations double under optimum conditions
Through feedback inhibition a noncompetitive inhibitor of enzyme activity would... -
Answers - Bind to the allosteric site of the enzyme and stop the reaction
Yeast infections such as thrush are caused by what? - Answers - Candida albicans
The outer protein coat of a simple virus particle is called? - Answers - Capsid
In the disease cycle of animal viruses(Lysogenic), uncoating takes place between which
two stages? - Answers - Penetration and biosynthesis
What would be used to sterilize disposable prepackaged gloves? - Answers - Gamma
Which type of hepatitis might you acquire by eating raw tomatoes or green onions at a
restaurant? - Answers - Hepatitis A
The bacteria that causes meningitis usually attach and multiply in this area of the body -
Answers - Upper respiratory system
Helper T cells... - Answers - Function in both humoral and cell-mediated immune
function activation
The function of chemical substances such as histamine and leukotrienes would be -
Answers - To stimulate inflammation
A cell is said to be _______________ when its cell wall is permeable to foreign DNA -
Answers - Competent
An enzyme that assembles free nucleotides to make a molecule of RNA is - Answers -
RNA polymerase
What do Rickettsias and Chlamydias have in common with viruses? - Answers - They
are both obligated to live inside of a host cell
Who discovered penicillin? - Answers - Alexander Flemming
, What is the difference between fimbriae and pili? - Answers - Pili is involved in bacterial
sex(conjugation), whereas fimbriae is just for attachment
New strains of the flu are made through _______________ _______________. -
Answers - Antigenic shifts
Prokaryotic ribosome subunits = - Answers - 50 + 30 = 70
Eukaryotic ribosome subunits = - Answers - 60 + 40 = 80
Fermenters - Answers - Homolactic, Alcohol, Ethanol
The prefix for fungi is - Answers - Myco-
could be used in the word Mycology (the study of fungi) or Mycoses (a fungi-related
disease)
Endotoxin - Answers - Gram negative
Exotoxin - Answers - Gram positive
Lytic - Answers - The virus hijacks the cell and then destroys it
Lysogenic - Answers - The virus integrates itself into the DNA and stays there
indefinitely
What is the least effective antibiotic? - Answers - Penicillin
What does betalactimase do? - Answers - Creates resistance to penicillin
Chlamydia has _____________ bodies - Answers - elementary
Treatment for tetanus? - Answers - If you have been vaccinated (DTaP) before
exposure:
If you have not been vaccinated: Tetanus immune globulin
What is the leading cause of blindness? - Answers - Trachoma
What causes trachoma? - Answers - Chlamydia
Varicella zoster aka - Answers - Chicken pox
What bacteria causes cavities? - Answers - Streptococcus mutans
Bacteria use - Answers - CAPSULES
Where does transcription occur? - Answers - The nucleus
