MICROBIOLOGY
All bacteria have cell wall EXCEPT:
a. Bacillus
b. Mycoplasma
c. Streptococcus
d. Salmonella
B. Mycoplasma
Unicellular, eukaryotic organisms:
Yeasts
Not considered cellular organisms, rather infectious agents
Virus
Pathogenicity of S. pyogenes in cell wall
M protein
Site of energy production in prokaryotes
Cytoplasmic Membrane
All bacteria cytoplasmic membrane has no CHO and sterol component EXCEPT:
a. Ureaplasma
b. Mycoplasma
c. Both
d. None of the above
C. Both A and B
Mycobacterium cell wall has high lipid content and it contains ______ instead of NAM and NAG:
N-glucolylmuramic acid
Thick peptidoglycan layer
a. G+
b. G-
a. G+
Unique to gram negative bacterial cell wall:
a. Flagellum
b. Thick peptidoglycan layer
c. Periplasmic space
d. Murein layer
c. Periplasmic space
Gram staining primary stain
Crystal Violet
Gram positive cocci except:
a. Moraxella
b. Actinomyces
c. Streptococcus
d. Corynebacterium
a. Moraxella
Fungus-like bacteria:
Nocardia and Actinomyces
Difference of Nocardia to Actinomyces:
a. Anaerobic gram negative bacilli
b. Aerobic gram negative bacilli
c. Anaerobic gram positive bacilli
d. Aerobic gram positive bacilli
b. Aerobic gram negative bacilli
Sporeformers:
Bacillus and Clostridium
Gram ghost or neutral
Mycobacterium
Gram negative cocci, anaerobe:
Veillonella
Gram positive bacilli, H2S positive
Erysiphelothrix
Mycolic acid in cell wall EXCEPT:
a. Nocardia
b. Gordonia
c. Listeria
d. Corynebacterium
c. Listeria
Much granules is seen in:
Mycobacterium tuberculosis
Gram postive bacilli, sporulates aerobically, catalase positive:
Bacillus
Schaeffer and Fulton is a stain used for demonstration of:
Spores
Gram positive cocci, (+) Quellung reaction
Streptococcus pneumoniae
Composition of endospores:
I. Mycolic acid
II. D-glutamic acid
III. Calcium dipicolinate
IV. Polysaccharides
a. I, II, IV
b. II & III
c. II only
d. III only
d. III only
Staphylococcus spp. that produces slime layer:
S. epidermidis
Type of flagella for enterobacteriaceae
Peritrichous
Tumbling motility
Listeria