question

[jackcui]

which of following is not correct about interleukins?

1. IL-5 is produced by activated T helper cells and mast cells.
2. IL-3 is secreted by T helper cells and mast cells.
3. IL-8 is secreted by monocytes and macrophages.
4. IL-10 is produced by activated T cells and mast cells
5. IL-7 is secreted by bone marrow stromal cells.

(reference from Kaplan Dent essentials:

IL-5 (source) TH2 cees
IL-3 TH cells, NK cells
IL-8 Macrophagess, endothelial cesss
IL-10 TH2 cells
IL-7 Primary lymph organs (so this one should be correct answer)?

Each of the following DNA virus encodes a DNA polymerase except one, which is this exception?

1. Hepatitis B virus(yes for polymerase)
2. SV40
3. Adneovirus (No)
4. EB Virus (No)
5. Poxvirus (yes for polymerase)

which one should be the right answer?

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[seemabhatara]

most good system survival rate in cancer of?
colon
lung
pancraece
esoghagus


which one indicate the severity of injury?
age ?
healing time?
size???

which of these best describes the strenght of the cardiac muscle contraction:
a. decreased when extracellular Ca is increased
b. increased when extracellular Ca is increased
c. mainly regulated by vagal impulses
d. unaffected by extracell Ca( STRENGTH DEPENDS ON ACTIN MYOSIN BRIDGES)
e. regulated by HR

5. which of these best describes GTP-binding proteins;
a. are important components of steroid hormone signal transduction
b. catalyze the reaction which produces diacylglycerol
c. are tightly bound to adenylate cyclase
d. usually inactivate protein kinase C
e. are membrane proteins

6. a diet rich in tryptophan offsets a deficiency of which?
a. niacin
b. thiamine
c. riboflavin
d. vit D
e. vit K

the height of the lingual cusps of the mandibular 1st molar accomodate which of the following
1 centric relation
2 working movement ----
3 protusive position
4 non working movement
5 maximum intercuspation

Constituent of epithelial cells or tissues that gives a positive PAS reaction:
A. Cilia
B. Nuclei
C. Nucleoli
D. Brush Border(PAS +VE R mucopolysachradies n glycogen)

...

 

[jackcui]

can u pls. explain this , how this is answer

You are right. the question is from previous released test and i relly don't know what does it mean. may be for enameloma?

 

[jackcui]

Zinc is an essential component of which of the following

A. Pepsin
B. Amylase
C. Hexokinase
D. Adenylate cyclase •
E. Carbonic anhydrase​

 

[aim high]

which of these best describes the strenght of the cardiac muscle contraction:
a. decreased when extracellular Ca is increased
b. increased when extracellular Ca is increased---answer
c. mainly regulated by vagal impulses
d. unaffected by extracell Ca
e. regulated by HR

 

[aim high]

[Zinc is an essential component of which of the following


A. Pepsin
B. Amylase
C. Hexokinase
D. Adenylate cyclase •
E. Carbonic anhydrase---------answer

 

[jackcui]

Which of the following factors MOST influences the lingual concavity of the maxillary anterior teeth and groove direction of the posterior teeth?

A. Anterior guidance
B. Angle of the eminence
C. Curve of the occlusion
D Sideshift of the mandible (Bennett movement)
E. Direction of movement of the rotating condyle​

 

[jackcui]

Which of the following base pairs promotes helix stabilization in DNA but does NOT do so in RNA?

A. G-C
B A-T
C. G-U
D. C-T
E. A-U​

 

[morphology]

Zinc is an essential component of which of the following

A. Pepsin
B. Amylase
C. Hexokinase
D. Adenylate cyclase •
E. Carbonic anhydrase​

answer is E carbonic anhydrase

 

[morphology]

Which of the following base pairs promotes helix stabilization in DNA but does NOT do so in RNA?

A. G-C
B A-T----answer
C. G-U
D. C-T
E. A-U​

ans-B

 

[jackcui]

. The rapid emergence of new strains of human immunodeficiency virus is primarily the result of

A. the frequent genomic recombination between human immunodeficiency virus and other retroviruses.
B. frequent errors in the translation of viral proteins.
C. the lack of immune response to the viral envelope glycoprotein.
O. frequent errors introduced by viral reverse transcriptase.
E. the imprecision of protein cleavage by viral protease​

 

[seemabhatara]

which of these best describes the strenght of the cardiac muscle contraction:
a. decreased when extracellular Ca is increased
b. increased when extracellular Ca is increased---answer
c. mainly regulated by vagal impulses
d. unaffected by extracell Ca
e. regulated by HR

is nt it more appropriate for smooth muscle contraction???

pls justify yr suggestd ans

 

[seemabhatara]

. The rapid emergence of new strains of human immunodeficiency virus is primarily the result of

A. the frequent genomic recombination between human immunodeficiency virus and other retroviruses.
B. frequent errors in the translation of viral proteins.
C. the lack of immune response to the viral envelope glycoprotein.
O. frequent errors introduced by viral reverse
transcriptase.
E. the imprecision of protein cleavage by viral
protease​

O.

frequent errors introduced by viral reverse
transcriptase.

 

[jackcui]

Which of the following is produced when a mutation occurs in an enzyme controlling a signal pathway involved in cell growth processes?

A. Epigene
B. Antigene
C. Oncogene
D. Monogene
E. Transgene​

 

[seemabhatara]

Which of the following is produced when a mutation occurs in an enzyme controlling a signal pathway involved in cell growth processes?

A. Epigene
B. Antigene
C. Oncogene
D. Monogene
E. Transgene​

C. Oncogene

 

[jackcui]

53. The apex of the horizontal plane Gothic-arch tracing represents which of the following positions?
A. Maximum opening
8 Centric relation
C. Lateral protrusive
D. Rest position​

 

[jackcui]

Which of the following is the primary site of origin of neuroblastoma?

A. Brain
B. Kidney
C. Stomach
D. Mandible
E. Adrenal gland​

 

[jackcui]

Phage conversion is responsible for which of the following?

A. Transformation of bacteria
B. Production of beta-galactose
C. Production of pyrogenic toxin
D. Ability of Rhizobium species to fix nitrogen​

 

[seemabhatara]

53. The apex of the horizontal plane Gothic-arch tracing represents which of the following positions?
A. Maximum opening
8 Centric relation
C. Lateral protrusive
D. Rest position​

8 Centric relation

 

[seemabhatara]

Which of the following is the primary site of origin of neuroblastoma?

A. Brain
B. Kidney
C. Stomach
D. Mandible
E. Adrenal gland​

E. Adrenal gland

 

[seemabhatara]

Phage conversion is responsible for which of the following?

A. Transformation of bacteria
B. Production of beta-galactose
C. Production of pyrogenic toxin
D. Ability of Rhizobium species to fix nitrogen​

. Production of pyrogenic toxin

 

[jackcui]

. Production of pyrogenic toxin

seemabhatara, u r great. when r u going to have the exam?

 

[jackcui]

Which of the following diseases is MOST often characterized by hyphae growing in and around vessels?

A. Candidiasis
B. Mucormycosis
C. Blastomycosis
D. Histoplasmosis
E. Coccidioidomycosis​

 

[seemabhatara]

seemabhatara, u r great. when r u going to have the exam?

dear m givin on cmin monday .......reappearin got 85 score 1st time in june end .......ve read so much nw bt still cant answr evry Q ........really feelin low.................

 

[seemabhatara]

Which of the following diseases is MOST often characterized by hyphae growing in and around vessels?

A. Candidiasis
B. Mucormycosis
C. Blastomycosis
D. Histoplasmosis
E. Coccidioidomycosis​

...

 

[jackcui]

48. /WOSVrickettsial diseases can produce severe illness in humans because rickettsiae
A. produce potent exotoxins.
B. cause extensive CNS damage.
C. are destructive for epithelial cells.
D. are destructive for endothelial cells.​

 

[jackcui]

dear m givin on cmin monday .......reappearin got 85 score 1st time in june end .......ve read so much nw bt still cant answr evry Q ........really feelin low.................

Good luck, I will go next thursday. your goal is how much? 100?

 

[seemabhatara]

48. /WOSVrickettsial diseases can produce severe illness in humans because rickettsiae
A. produce potent exotoxins.
B. cause extensive CNS damage.
C. are destructive for epithelial cells.
D. are destructive for endothelial cells.​

...

 

[jackcui]

...

Oh, this is D

Rickettsia is a genus of motile, Gram-negative, non-sporeforming, highly pleomorphic bacteria that can present as cocci (0.1 μm in diameter), rods (1-4 μm long) or thread-like (10 μm long). Obligate intracellular parasites, the Rickettsia depend on entry, growth, and replication within the cytoplasm of eukaryotic host cells (typically endothelial cells).

 

[jackcui]

The capsule of Streptococcus mutans is an important virulence factor that

A. has proteolytic activity.
B. enhances oral accumulation.
C. causes circulatory collapse.
D. prevents phagocytic digestion.
E. is necessary to cause bacteremia.​

 

[seemabhatara]

mouth rinse contains 0.05 % F . Which represent conc in ppm

5
500
5000
50

 

[seemabhatara]

The capsule of Streptococcus mutans is an important virulence factor that

A. has proteolytic activity.
B. enhances oral accumulation.
C. causes circulatory collapse.
D. prevents phagocytic digestion.
E. is necessary to cause bacteremia.​

D. prevents phagocytic digestion.( capsules prevnt phagocytosis isnt????)

 

[jackcui]

Cor pulmonale is usually the direct result of

A. viral pneumonia.
B. myocardial ischemia.
C. systemic hypertension.
D. resistance to blood flow through the lungs.
E. streptococcal hypersensitization​

 

[jackcui]

mouth rinse contains 0.05 % F . Which represent conc in ppm

5
500
5000
50

0.05% means 0.05g/100ml, ppm means g/1,00,000, so it should be 5 ppm

 

[jackcui]

D. prevents phagocytic digestion.( capsules prevnt phagocytosis isnt????)

This should be a right answer, but the key is B, that's why I put it here.

 

[seemabhatara]

Cor pulmonale is usually the direct result of

A. viral pneumonia.
B. myocardial ischemia.
C. systemic hypertension.
D. resistance to blood flow through the lungs.
E. streptococcal hypersensitization​

D. resistance to blood flow through the lungs

 

[jackcui]

57. What is the role of lactobacilli in coronal caries?
A. Primary pathogen in most cases
B. Highly pathogenic in animal models
C. Causes progression of existing lesions
D. Highly adherent colonizer of smooth surfaces
E. Consumes lactic acid produced by streptococci​

 

[seemabhatara]

This should be a right answer, but the key is B, that's why I put it here.

b is right coz capsule is formed by mutans 4m sucrose and it adheres to teeth tightly .....so help colonisation by othr bacteria

 

[seemabhatara]

57. What is the role of lactobacilli in coronal caries?
A. Primary pathogen in most cases
B. Highly pathogenic in animal models
C. Causes progression of existing lesions
D. Highly adherent colonizer of smooth surfaces
E. Consumes lactic acid produced by streptococci​

. Causes progression of existing lesions

 

[jackcui]

Under which of the following circumstances does a graft versus host reaction occur?

A. When nonvital tissues are grafted
B. When viable lymphoid cells are present in the graft
C. When the recipient and the donor are syngeneic
D. When the graft is contaminated with gram-negative microorganisms
E. When the donor and the recipient are of different races​

 

[seemabhatara]

0.05% means 0.05g/100ml, ppm means g/1,00,000, so it should be 5 ppm

bt 1ppm = 1mg/L

 

[jackcui]

. Causes progression of existing lesions

this one is D

 

[jackcui]

Which of the following is associated with an increased risk of breast cancer?

A. History of bearing multiple children
B. Estrogen deficiency
C. Silicone implants
D. Fibroadenoma
E. Obesity​

 

[seemabhatara]

Under which of the following circumstances does a graft versus host reaction occur?

A. When nonvital tissues are grafted
B. When viable lymphoid cells are present in the graft
C. When the recipient and the donor are syngeneic
D. When the graft is contaminated with gram-negative microorganisms
E. When the donor and the recipient are of different races​

B. When viable lymphoid cells are present in the graft

 

[seemabhatara]

. Causes progression of existing lesions

IS it nt tht initial colonisers n initiaters r mutans n lactobacilli progress the leison ......pls clear...........

 

[jackcui]

bt 1ppm = 1mg/L

ppm mean part per million, should be 1gram/milliom ml

let's figure it out.

1g/1,000,000ml=1mg/1000ml=1gm/L
0.05% =0.05g/100ml=50mg/100ml=500mg/1000ml=500 ppm

sorry, 500 ppm

 

[jackcui]

. Causes progression of existing lesions

sorry, u r right , this one is C

 

[seemabhatara]

Which of the following is associated with an increased risk of breast cancer?

A. History of bearing multiple children
B. Estrogen deficiency
C. Silicone implants
D. Fibroadenoma
E. Obesity​

D. Fibroadenoma

 

[jackcui]

Which of the following are directly associated with destruction of glomerular basement membranes in a patient with glomerulonephritis?

A. Eosinophils
B. Lymphokines
C. IgE antibodies
D. Polymorphonuclear leukocytes​

 

[jackcui]

D. Fibroadenoma

The key is obesity. I thought is the change of hormone since they are all happened in the post mam. but i am wrong

 

[seemabhatara]

Which of the following is associated with an increased risk of breast cancer?

A. History of bearing multiple children
B. Estrogen deficiency
C. Silicone implants
D. Fibroadenoma
E. Obesity​

fibroadenoma is tumour itself n nulliparity is increasd risk 4 breast cancer

but will increasd estrogen is risk factor ( as is in uterus case) ??