Microbiology NBDE part 1 UPDATED ACTUAL Exam Questions and CORRECT Answers

Microbiology NBDE part 1 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
T/F Exotoxins are heat labile? - CORRECT ANSWER - True



T/F Endotoxins are heat labile? - CORRECT ANSWER - False
They are heat stabile


T/F Endotoxins are proteins? - CORRECT ANSWER - False
Endotoxins are lipopolysaccharides


T/F Gram positive produce endotoxins? - CORRECT ANSWER - False- only Gram -



T/F Gram - produces exotoxins? - CORRECT ANSWER - True both Gram + and negative
produces exotoxins
Gram - also produces endotoxins


What bacteria does not have a cell wall? - CORRECT ANSWER - Mycoplasm ( including
ureoplasm)


What bacteria has a cell wall that lacks muramic acid? - CORRECT ANSWER - Chlamydia



What bacterias are resistant to Beta- lactam? - CORRECT ANSWER - Chlamydia and
mycoplasm


What bacterium is Acid-fast staining? - CORRECT ANSWER - Mycobacteria and Nocardia
- The ability to resist acid decolorization due to high content of waxes. in the cell wall.

, What organelle is responsible for movement? - CORRECT ANSWER - Flagella


What organelle is responsible for attachement? Which bacterium has them? - CORRECT
ANSWER - Pili or fimbriae
Gram - bacterium


Does prokaryitc flagella has microtubules? - CORRECT ANSWER - No



What bacterium have spores? - CORRECT ANSWER - Bacillus and chlostridium



The DNA type in prokarytes is lineal or circular? - CORRECT ANSWER - circular


Which one is prokaryotic?
Fungi
Bacterium
Virus

Parasites - CORRECT ANSWER - Bacterium


Which of the following infectious occur worldwide?
Endemic
Pandemic

Epidemic - CORRECT ANSWER - Pandemic
endemic- occurs at minimal levels within a population
epidemic- More frequently than normal within a population


Which of the following infectious occur more frequently than normal within a population ?
Endemic