Medical Lab Science Final Exam Complete Questions and Correct Answers (verified answers) Graded A+

Microbiology Exam 1 Assessment Latest Exam
Complete Accurate Actual Questions With
Verified Answers (100% correct verified
solutions) Brand-new Version. Graded A+


Penicillin inhibits peptide bridges in peptidoglycan


mycoplasmas: no cell wall
- causes walking pneumonia
-can't give them penicillin cause of lacking cell wall



Protoplasts - ✔✔CORRECT VERIFIED ANSWERS✔✔->>wall-less gram-
positive cells



spheroplast - ✔✔CORRECT VERIFIED ANSWERS✔✔->>wall-less gram-
negative cells


L-forms - ✔✔CORRECT VERIFIED ANSWERS✔✔->>wall-less cells that swell
into irregular shapes

,Acid Fast Cell Walls: - ✔✔CORRECT VERIFIED ANSWERS✔✔->>- like gram
positive cell walls
- waxy lipid (mycolic aid)
-mycobacterium
Nocardia: resist the decolorization with acid alcohol



Mycoplasmas - ✔✔CORRECT VERIFIED ANSWERS✔✔-
>>lack of cell walls sterols in plamsa membrane


smallest living cell


causes walking pneumonia


can't use penicillin



Archaea - ✔✔CORRECT VERIFIED ANSWERS✔✔->>wall less or wall of
pseudomurein


(lack NAM and D-amino acids)


What are the ways that you can damage the plasma membrane -
✔✔CORRECT VERIFIED ANSWERS✔✔->>-alcohol
- Quarternary ammonium products ex:
soap

, -antimicrobials ex:
polymexia



Isotonic Solutions - ✔✔CORRECT VERIFIED ANSWERS✔✔->>solute
concentrations equal inside and outside the cell


water is at equilibrium



hypotonic solution - ✔✔CORRECT VERIFIED ANSWERS✔✔->>solute
concentration is lower outside than inside the cell


water moves into the cell and eventually explodes



hypertonic solution - ✔✔CORRECT VERIFIED ANSWERS✔✔->>solute
concentration is higher outside of cell inside


water moves out of cell and will eventually become nothing


aka starving


3 types of transport protein - ✔✔CORRECT VERIFIED

ANSWERS✔✔->>uniport antiport symport-coupled



Uniport - ✔✔CORRECT VERIFIED ANSWERS✔✔->>protein can only transfer
1 type of molecule