MEDICAL MICROBIOLOGY CHAPTERS 5 THROUGH 75 FINAL PAPER SOLVED QUESTIONS WITH COMPLETE ANSWERS.pdf

MEDICAL MICROBIOLOGY CHAPTERS 5
THROUGH 75 FINAL PAPER SOLVED
QUESTIONS WITH COMPLETE ANSWERS

◉ Function of cells wall.
Answer: • Provides structural
support
• Made of peptidoglycan
(polysaccharide)


◉ Function of capsule.
Answer: Sticky outer layer
for protection and
attachment


◉ Function of plasma cell membrane.
Answer: • Directs what enters
and exits
• Phospholipid bilayer


◉ Differences in cell walls gram (-) and (+).

,Answer:


◉ Gram positive bacteria structure.
Answer: • Inner plasma cell membrane (phospholipid bilayer)
• Thick 'peptidoglycan' cell wall
• Outer Capsule


◉ Gram negative bacteria structure.
Answer: • Inner plasma cell membrane
(phospholipid bilayer)
• Thin 'peptidoglycan' cell wall
• Another outer plasma cell
membrane (phospholipid
bilayer - 'lipopolysaccharides')
• Outer Capsule


◉ Bacteria unlike eukaryotes have no ____ in plasma membrane..
Answer: sterols


◉ Lipopolysaccharide (LPS) is only associated with ______..
Answer: Gram negative bacteria

, ◉ POLLEV- True or false: Gram (-) Bacteria has a thicker
peptidoglycan cell wall than the Gram (+) Bacteria.
Answer: False


◉ Essential components of bacteria.
Answer: -cell wall (peptidoglycan, outer membrane of gram (-)
bacteria, surface fibers
-mesosome
-nucleoid
-periplasm
-plasma membrane
-ribosome


◉ Function of peptidoglycan.
Answer: -rigid support
-protects against osmotic pressure
-penicillin, vancomycin and cephalosporin
acts here


◉ Outer membrane of gram (-) bacteria has Lipid A which is _____.
Answer: endotoxin