help....answers needed....

[docnc]

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1. Interferon promotes resistance to viral infection by
a. blocking recognition of infected cells by natural killer lymphocytes
b. inducing viral resistance in adjacent, non-infected cells
c. blocking production of antibodies to extracellular virus
d. decreasing phagocystosis of infected cells
e. increasing complement activity

2. Which of the following conditions causes myelin degeneration of the axis cylinders of the peripheral nerves ?
a. Lead poisoning
b. Silver poisoning
c. Mercury poisining
d. Bismuth poisoning
e. Tetracycline intoxication

3. Which of the following represents the pulmonary neoplasm MOST likely to produce ACTH ?
a. Mesothelioma
b. Adenocarcinoma
c. Small cell carcinoma
d. Squamous cell carcinoma
e. Bronchioloalveolar carcinoma

4. The epidemic of HIV-related disease bears major responsibility for the resurgence of which respiratory pathogen ?
a. Streptococcus pneumoniae
b. Hemophilus influenzae
c. Streptococcus pyogenes
d. Mycobacterium tuberculosis
e. Mycoplasma pneumoniae

6. Each of the following statements about lymphocyte activation is correct EXCEPT one. Which one is the EXCEPTION ?
a. Interleukin 5 is a D cell growth and differentiation factor
b. Interleukin 2 stimulates proliferation of T and B lymphocytes
c. B lymphocytes recognize antigen on the surface of antigen-presenting cells in the context of HLA-D molecules
d. T lymphocytes recognize antigen on the surface of antigen-presenting cells in the context of HLA-B molecules


7. The first clinical findings in prostatic cancer are often the result of metastasis to which of the following
a. liver
b. Brain
c. Testes
d. Adrenal gland
e. Vertebral column

8. A patient who has minimal resistance to a gonococcal infection MOST probably has
a. leukocytosis
b. agammaglobullnemia
c. an eosinophil deficiency
d. deficiency in cell-mediated immunity
e. deficiency in complement factors C6, C7 and C8

9. Neutrofibromatosis Type I is characterized by which of the following conditions ?
a. Multiple mucosal neuromas
b. Perioral melanotic freckles
c. Multiple schwannomas of the skin
d. Development of visceral carcinoma
e. Multiple pigmented macules of the skin

9. Each of the following types of cells is phagocytic EXCEPT one. Which one is this EXCEPTION ?
a. Monocyte
b. Histocyte
c. Neutrophil
d. Macrophage
e. Lymphocyte


just few days left for my exams...these questions is been asked many times...still not able to figure out answers....plz friends help me.....

 

[chinnu96]

1. Interferon promotes resistance to viral infection by
a. blocking recognition of infected cells by natural killer lymphocytes
b. inducing viral resistance in adjacent, non-infected cells
c. blocking production of antibodies to extracellular virus
d. decreasing phagocystosis of infected cells
e. increasing complement activity

2. Which of the following conditions causes myelin degeneration of the axis cylinders of the peripheral nerves ?
a. Lead poisoning
b. Silver poisoning
c. Mercury poisining
d. Bismuth poisoning
e. Tetracycline intoxication

3. Which of the following represents the pulmonary neoplasm MOST likely to produce ACTH ?
a. Mesothelioma
b. Adenocarcinoma
c. Small cell carcinoma
d. Squamous cell carcinoma
e. Bronchioloalveolar carcinoma

4. The epidemic of HIV-related disease bears major responsibility for the resurgence of which respiratory pathogen ?
a. Streptococcus pneumoniae
b. Hemophilus influenzae
c. Streptococcus pyogenes
d. Mycobacterium tuberculosis
e. Mycoplasma pneumoniae

6. Each of the following statements about lymphocyte activation is correct EXCEPT one. Which one is the EXCEPTION ?
a. Interleukin 5 is a D cell growth and differentiation factor
b. Interleukin 2 stimulates proliferation of T and B lymphocytes
c. B lymphocytes recognize antigen on the surface of antigen-presenting cells in the context of HLA-D molecules
d. T lymphocytes recognize antigen on the surface of antigen-presenting cells in the context of HLA-B molecules


7. The first clinical findings in prostatic cancer are often the result of metastasis to which of the following
a. liver
b. Brain
c. Testes
d. Adrenal gland
e. Vertebral column

8. A patient who has minimal resistance to a gonococcal infection MOST probably has
a. leukocytosis
b. agammaglobullnemia
c. an eosinophil deficiency
d. deficiency in cell-mediated immunity
e. deficiency in complement factors C6, C7 and C8

9. Neutrofibromatosis Type I is characterized by which of the following conditions ?
a. Multiple mucosal neuromas
b. Perioral melanotic freckles
c. Multiple schwannomas of the skin
d. Development of visceral carcinoma
e. Multiple pigmented macules of the skin

9. Each of the following types of cells is phagocytic EXCEPT one. Which one is this EXCEPTION ?
a. Monocyte
b. Histocyte
c. Neutrophil
d. Macrophage
e. Lymphocyte


just few days left for my exams...these questions is been asked many times...still not able to figure out answers....plz friends help me.....

HI
1----B
2--A
3--C
4---E
6--D---
7--MAY B E??? I KNOW BONES AND LYMPH NODES AS THE ANSWER..
8--D
9--A
10--E

PL CORRECT ME IF IAM WRONG..👍

 

[cutedoc12]

4. d
6. c
9. c

correct me if m wrong

 

[chinnu96]

4. d
6. c
9. c

correct me if m wrong

hi u r right,4--d;sorry thats a typo mistake..
fr 9-- i think schawannomas r common in type-2 and not iin type 1. so i feel it can b A or e?????
fr 6-- t-cells recognise antigen from HLA--D molecles. so i think thta one is the exception here.

 

[cutedoc12]

hi u r right,4--d;sorry thats a typo mistake..
fr 9-- i think schawannomas r common in type-2 and not iin type 1. so i feel it can b A or e?????
fr 6-- t-cells recognise antigen from HLA--D molecles. so i think thta one is the exception here.

9. Type -1 neurofibromatosis is von recklinghausns ds in which schwannomas are common but they are the tumors of nerve nd not of skin soo its not (c) sry 4 da wrong ans......(a) cant be the ans bcoz neuroFIBROMAS of SKIN are common nd not neuromas........soo i think ans is (e) multiple pigmented macules- cafe u lait spots.

6. wat i hav read is dat HLA-A , B nd C are present in all human cells nd are the principle antigens in tissue graft rejection...

helper t cells - type-2 (HLA-D)
Cytotoxic t cells - type-1 (HLA-A,B,C)

8. I think da ans is (B)

CORRECT IF M WRONG....