السلام عليكم
اعتقد الاجابة الاصح هي الاجابة الثالثة لان معظم الاصابات المرضية بيكون سببها اما البكتيريا او الفيروسات او الفطريات.
بس الي حيرني بالسؤال انو protozoa ممكن انها تعمل infectious diseases وكمان البكتيريا ممكن تتحول من علاقة تعايشية مع الانسان لعلاقة مرضية.

عزيزي اولا شكرا على سرعه ردك
ثانيا نعطي فرصه ثلاثه ايام للاخرين ثم نعطي الاجابه الصحيحه
ثالثا تعجبني طريقه تفكيرك

الاجابه الصحيحه هي بالفعل الثالثه (C) وتفكيرك سليم حيث تعتبر المجموعه الرابعه هي الطفيليات والتي تنبثق منها البروتوزوا والمطلوب فقط ثلاث جروبات اي مجموعات
وللاسف ان المشاهدين لهذا السؤال حوالي 73 حتي كتابتي هذه والذي اجاب هو واااحد
شكرا

اسئله منتظره الاجابة عليها والوقت ثلاث ايام

طبعا اليوم سؤال سهل جدا
Pathogens can be either prokaryotes or eukaryotes. Which are viruses

مـــــــــــــــــــــــــــــــــــــــــراحب الاجابة C

شكرا بنت الدار على سرعه ردك ولكن دعينا نتظر بقيه الثلاث الايام

C هي الاجابة الصحيحة لانو الفيروسات تعتبر دقائق غير حية (particles ) لانها لا تقوم بعمليات حيوية مثل prokaryote او eukaryote

الله لايهينكم حلوا هالاسئله
ويعطيكم العافيه

90- A specific test for staphylococcus aureus is
a) Catalase test
b) Coagulase test
c) Optochin sensitivity test
d) Bacitracin sensitivity test
e) CAMP test
  ب ذو 
 و

91- Bacteria that need dark field microscope to detected
a) T.pallidium
b) Klebsiella
c) Streptocoocus pyogenes
d) Colistridia sp
92-Autoclave sterilize in temp:
a) 121 ◌ْc-20min
b) 125-35min
c) 115-25min
d) 160c-45-60 min
 ر إ  ا ?
93-Strict aerobe bacteria
a) Mycobacterium
b) Klebsiella
c) Streptococcus pyogenes
d) Colistridia sp.
94-Citrate test detect:
a) Mycobacterium
b) Klebsiella
c) Streptococcus pyogenes
d) Colistridium sp
95-Capsulated bacteria
a) Mycobacterium
b) Klebsiella
c) Streptococcus pyogenes
d) Colistridium sp
96- Growth of vibrio cholerae on TCBS medium produces colonies
a) Yellow colonies
b) Blue colonies
c) Green colonies
d) White colonies
e) Red colonies
از 
دم
97- Organism cause bloody stool:
a) Shigella sp.
b) E.coli
c) Salmonella
d) Cambylobacter
17
Microbiology Revision. By dr. AboRashad Email .dr_alganzory@hotmail.com Mob.0598092704
ز  ا  !
98-Media use for differentiate between L.F and N.L.F:
a) MacConkey agar
b) Chocolate
c) Blood agar
d) XLD
e) TCBS
99- Bacteriological media can be sterilized in:-
a) Oven
b) Filtration
c) Autoclave
d) Bunsen burner
100- All of the following are true about agar except:-
a) agar is inert(Non nutritive)
b) Nutritious
c) Solidity at 42c
d) Melts at 100c
101- The IMVIC Reaction of E. coli is
a) + + - -
b) - - + +
c) + + + -
d) -- + --
102- On DCA and maCconkey agar the salmonella/shigella give small
colonies, which colour of the following, appear
a) Black
b) pink
c) Brown
d) Pale yellow
e) Yellow-brown
103-In manual white blood cell count using haemocytometer the
dilution used is:
a) Normal saline
b) Sodium chloride
c) Glacial acetic acid
d) Water
104-Which of the following are sterilized in the oven:-
a) Media
b) Sand
c) Water
d) Blood
e) All of the above
18
Microbiology Revision. By dr. AboRashad Email .dr_alganzory@hotmail.com Mob.0598092704
105-A parasite which does not deposit eggs in the intestine:
a) Entrobius.vermicularis
b) Anchylostoma. Duodenale
c) Ascaris lumbricoides
d) T.saginata
106- Specimens from a polio victim for culture can be best made on
a) Blood
b) Urine
c) Feces
d) CSF
e) Throat / Nasal washing
107- Beta hemolytic is enhanced when group B streptococci are
streaked at an angle in blood agar plate with:-
a) Streptococci
b) Staph aureus
c) micrococcus
d) Streptococcus epiedermidis
e) Corynebacterim diphteriae
108- To obtain an isotonic media, sodium chloride content should be:-
a) 0.58 g %
b) 0.085 g%
c) 8.5 g%
d) 6.5 g%
e) 0.50 g%
109- Group B beta-hemolytic streptococci are differentiated by other
streptococcus groups by using:-
a) Optochine
b) CAMP
c) Niacin test
d) Catalase test.
e) Bacitracin sensitivity disc
110- Most of pathogenic strains of streptococcus belongs to group :-
a) Viridans
b) Beta-hemolytic
c) Alpha-hemolytic (pneumonia)
d) Group d
e) Micrococcaciae
19
Microbiology Revision. By dr. AboRashad Email .dr_alganzory@hotmail.com Mob.0598092704
111- The trophozoite , which contains red blood cells in the
cytoplasm , brings to this parasite:-
a) Entamoeba histolytica
b) Entamoeba gingivalis
c) Entamoeba coli
d) Iodamoeba butschlii
e) None of the above
112- On EMB, the colour of the colonies of shigella – salmonella is:-
a) Black
b) Green
c) Pink
d) Yellow
e) Colorless
113- Micro-organisms that grow at 60 c are classified as:-
a) Psychophysics
b) Mesosphilic
c) Hemophilic
d) Thermophilic
e) Saprophilic
114- A diagnostic finding for giardia lambilia in stool:-
a) Cyst in stool
b) Cyst and trophozoite in stool
c) Characteristic ova
d) Trophozoite in stool
e) All of the above
115- The concentration of agar in the culture medium is:-
a) 10 – 11 %
b) 20 %
c) 50 %
d) 60 %
e) 1-2 %
116- Best for identification of parasite if you can not see it in stool
(negative in stool)
a) Concentration technique
b) Flotation technique
c) Wet mount technique
d) Kato technique
117- Streptococcus pneumonia are :
a) Beta hemolytic
b) alpha hemolytic
c) No hemolytic
20
Microbiology Revision. By dr. AboRashad Email .dr_alganzory@hotmail.com Mob.0598092704


118- Some organisms are to said to be pathogenic if they are
containing the following features:-
a) Coagulase
b) Catalase
c) Sugar
d) Antibodies
119- Organism soluble the bile:-
a) Staph.aureus
b) Streptococci
c) Pneumococci (streptococcus pneumonia)
d) Haemophilous influenzae
120- Organism that exhibits satellitism along with staph aureus:-
a) Haemophilus influenzae
b) Shigella sp.
c) Clostiridium sp.
d) S.pneumoniae
121- To differentiate between nisseria gonorrhoea & nisseria
meningitides
a) dextrose + lactose
b) dextrose + maltose
c) Glucose + Maltose
d) dextrose + Fructose
122- which of the following organisms is an anaerobic bacterium:-
a) Clostiridium spp.
b) Haemophilus
c) E.coli
d) Yersinia enterocolitica
123- What practical Cardiolipin is applicable in laboratory work?
a) FTA
b) VDRL&RPR
c) RPR only
d) VDRL only
124- Vi Ag is seen in:-
a) Capsule
b) Pili
c) Spore
d) Flagella
21
Microbiology Revision. By dr. AboRashad Email .dr_alganzory@hotmail.com Mob.0598092704
125- Purine associated with
a) Adenine
b) Guanine
c) Uric acid
d) RNA
126- To Clean the lenses of microscope we used
a) Water
b) Ethyl alcohol
c) Xylene
d) Chloroform
e) HCL
127- The determination of ASO titer is used in the laboratory
diagnosis of:-
a) Toxic shock syndrome
b) Scarlet fever
c) Streptococcal pharyngitis and cellulitis
d) Rheumatic fever
128-Which of the following Enlarges RBCs
a) Plasmodium vivax
b) Plasmodium malariae
c) Plasmodium falciprum
d) All of the above
129-Which of the following neither lays eggs nor deposits larvae in
the intestinal canal:-
a) Hookworms
b) Pinworm (Entrobius vermicularis)
c) Trichinella spiralis
d) Trichuris trichura
130-Identified by finding mainly the Rhabditiform larvae in in fresh
stool:-
a) Ascaris lumbricoides
b) Entrobius vermicularis
c) Strongyloides stercoralis
d) Trichinella spiralis
131-The resolution of the bright field microscope is:-
a) 2.0 um
b) 0.2 um
c) 0.02um
d) 0.002um
22
Microbiology Revision. By dr. AboRashad Email .dr_alganzory@hotmail.com Mob.0598092704
132-When using a 10 x eye piece and a 10 x objective of a bright field
microscope, the total magnification will be:-
a) 10
b) 100
c) 1000
d) 10000
133-For blood culture the best anticoagulant is
a) Citrate
b) Oxalate
c) Sodium polyanesthol sulphonate(SPS)
d) Heparin
e) EDITA
134-Hydated disease caused by
a) Trichomonas vaginalis
b) Tainia saginata
c) Echioccus granulosus
135-- Ancylostoma duodenalis diagnostic stage is
a) Embryonated egg
b) Cyst
c) Filariform larva
d) Trophozoit
136- Ancylostoma duodenalis Infective stage stage is
a) Embryonated egg
b) Cyst
c) Filariform larva
d) Trophozoit
137- Preservation of Urine Sample used
a) Acetic acid
b) Boric acid
c) Phenol
d) Formalin
138- The antibiotic disc which differentiate between group A
streptococci and other groups is?
a) Neomycin
b) Tetracycline
c) Bacitracin
d) CAMP
e) Optichine
23
Microbiology Revision. By dr. AboRashad Email .dr_alganzory@hotmail.com Mob.0598092704

 ودة ا  ا
139- The dwarf worm is?
a) Schistosoma sp.
b) Tenia saginata
c) H.nana
d) Tainia saginata
140- When focusing a stained smear under oil immersion field the
magnification is?
a) 10
b) 40
c) 100
d) 15
141- A standard micro plates in ELISA test has?
a) 98 wells
b) 94 wells
c) 96 wells
d) 48 wells
142- The enzyme in ELISA testing is present in the?
a) Buffer
b) Micro plate
c) Conjugate
143- The label in ELISA tests is?
a) Radio active substance
b) Antibody
c) Enzyme
d) Buffer
e)
م  ل  ) أ  د (ا  ذا  ط ا  و
144- Best sterilization of Nutrient media done by:
a) Hot air oven
b) Autoclaving
c) Filtration
d) Radiation
H ن ا
145- H Ag present in:
a) Pilli
b) Capsule
c) Flagella
d) Cell membrane

الاجابة الصحيحه هي C