Competitive Exams: Medical Science MCQs (Practice-Test 41 of 135)

  1. Hydrophilic centre of the bile salt-lipid micelles contain

    1. bile salts, triglycerides and mucin

    2. lipase, co-lipase, and a amylase

    3. fatty acids, monoglycerides and cholesterol

    4. Na +, F + and CHO3

  2. 72% of the fat is absorbed as

    1. a-monoglycerides

    2. β-Monoglycerides

    3. ? -monoglycerides

    4. Fatty acid and glycerol

  3. Consider the following statement: The pre-ovulatory LH surge is due to

    1. Positive feedback effect of oestrogen on pituitary

    2. negative feedback effect of oestrogen

    3. increase in GnRH

    4. a small rise in progesterone level just prior to ovulation

    Which of the statemtns are correct?

    1. 1, 2 and 3

    2. 1 and 2

    3. 1 and 4

    4. 2, 3 and 4

  4. What is the direction in which transcription of RNA occurs?

    1. 3 ‘-5’ end

    2. 5 ‘-3’ end

    3. 3 ‘-5’ end in the presence of excess ATP

    4. 5 ‘-3’ end in the presence of excess

    GTP

  5. Which one of the following is the cause of hereditary nonpolyposis colon cancer?

    1. Mutation on chromosome 4

    2. Defective repair of DNA mismatch

    3. Base excision repair

    4. Nucleotide excision repair

  6. Conversion pepsinogen to pepsin is a post translational modification by

    1. phosphorylation

    2. hydroxylation

    3. glycosylation

    4. proteolytic degradation

  7. Inflammation is a dynamic pathological process consisting of a series of interdependent changes, a reaction, which destroys the injurious agent and limits the spread. The attempt is earnest, a salutary operation according to

    1. Celsus

    2. Menkin

    3. John Hunter

    4. Metcahnikoff

  8. In leucocyte adhesion deficiency Type I, the defect is in the synthesis of

    1. a-interferons

    2. 2 β-integrins

    3. ? -interferons

    4. leucotrieneas

  9. All the following are related to arachidonic acid metabolism Except:

    1. Prostacyclin

    2. Linoleic acid

    3. Thromboxane

    4. Cationic proteins

  10. Classical demonstrable fibrinous inflammation is seen in which one of the following stages of lobar pneumonia?

    1. Hyperemia

    2. Red hepatization

    3. Grey hepatization

    4. Resolution

  11. Consider the following statements: A characteristic neutrophilic abscess surrounded by macrophages is seen in

    1. tuberculosis

    2. cat scratch disease

    3. lymphogranuloma venereum

    Which of these statements are correct?

    1. 1, 2 and 3

    2. 1 and 2

    3. 2 and 3

    4. 1 and 3

  12. Match List I (Carcinogens) List II (Malignant disorders) and select the correct answer:

    List-I List-II
    1. Azo dyes

    2. Nitrosamines

    3. Thorotrast

    4. Asbestos

    1. Gastric carcinoma

    2. Urinary bladder cancer

    3. Mestothelaiom

    4. Cholangio carcinoma

    • A
    • B
    • C
    • D
      • 1
      • 2
      • 4
      • 3
      • 1
      • 2
      • 3
      • 4
      • 2
      • 1
      • 4
      • 3
      • 2
      • 1
      • 3
      • 4
  13. Consider the following cellular responses:

    1. Specifically sensitized cytotoxic Tlymphocytes

    2. Natural killer cells

    3. Humoral antibodies I the blood

    4. macrophage mediated cytotoxicity by antibody dependent cellular cytotoxicity

    Which of these cellular responses destroy the tumour cells and induce tumour immunity in humans?

    1. 1, 2 and 3

    2. 2, 3 and 4

    3. 1, 3 and 4

    4. 1, 2 and 4

  14. The karyotype in Burkitts lymphoma is

    1. T (3: 8)

    2. T (6: 14)

    3. T (11: 2)

    4. T (8: 14)

  15. Consider the following systemic manifestations:

    1. Pancoast syndrome

    2. Clubbing of fingers

    3. Cushing syndrome

    4. Thyrotoxicosis

    Manifestations that are likely to be associated with bronchogenic carcinomas would include

    1. 1, 2 and 3

    2. 2, 3 and 4

    3. 1, 3 and 4

    4. 1, 2 and 4