Competitive Exams: Medical Science MCQs (Practice-Test 90 of 135)

  1. Consider the following:

    1. Neutrophils

    2. Lymphocytes

    3. Red blood cells

    4. Parenchyma cell debris

    Purulent exudates is rich in which of the above?

    1. 1 and 2 only

    2. 1 and 4 only

    3. 1, 2 and 3 only

    4. 2, 3 and 4 only

  2. Which of the following mediators of inflammation is elaborated by platelets?

    1. Serotonin

    2. Lysozyme

    3. Nitric oxide

    4. cytokine

  3. Septic shock is usually caused by

    1. gram positive bacteria

    2. gram negative bacteria

    3. fungi

    4. virus

  4. Central venous pressure is raised in

    1. Haemorrhagic shock

    2. cardiogenic shock

    3. vasovagal attack shock

    4. Anaphylactic shock

  5. What is the earliest effect of strangulation in bowel?

    1. Oedema of the bowel wall

    2. Venous obstruction

    3. Capillary rupture and haemorrhagic infiltration

    4. Intramural thrombosis

  6. In patients with benign hypertrophy of prostate symptoms due to detrusor instability include the following except

    1. dribbling

    2. frequency

    3. nocturia

    4. urgency

  7. Consider the following:

    1. Bilirubin

    2. Glycine

    3. Succinyl CoA

    Which of the above are the starting substances for heme biosynthesis?

    1. 1, 2 and 3

    2. 1 and 2 only

    3. 2 and 3 only

    4. 1 and 3 only

  8. With reference to bile acids, consider the following statements:

    1. conjugation of bile acids takes place in peroxisomes.

    2. In humans, the ratio of glycine to taurine conjugates is normally 1:

    Which of the statements given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  9. Rifampicin inhibits transcription of DNA to RNA by

    1. Altering RNA polymerase

    2. Incorporating into the 3 end of mRNA

    3. Preventing the addition of 3 poly A tail to mRNA

    4. Intercalating between two GC pairs of

    DNA

  10. With reference to protein synthesis in eukaryotes, which one of the following is not stop codon?

    1. AUG

    2. UGA

    3. UAA

    4. UAG

  11. In the absence of bile salts in the intestinal tract, the percentage of ingested lipids thah are lost in faces is up to

    1. 40%

    2. 50%

    3. 60%

    4. 70%

  12. With reference to heme synthesis, consider the following statements:

    1. ALA synthase is the rate controlling enzyme in porphyrin biosynthesis in mammalian liver.

    2. synthesis of ALA occurs I peroxisomes.

    Which of the statemtns given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  13. Renal acidification test for distal tubular functions is unnecessary if the early morning sample of urine has one of the following pH

    1. 6.3

    2. 6.0

    3. 5.6

    4. 5.3

  14. Match List-I with List-II and select the correct answer using the code give below the Lists:

    List-I (Tonicity of Tabular Fluid) List-II (Part of Nephron)
    1. Hypotonic

    2. Isotonic

    3. Hypertonic

    1. Proximal convoluted tubule

    2. Thick ascending limb of loop of Henle

    3. collecting duct

    • A
    • B
    • C
      • 2
      • 1
      • 3
      • 2
      • 3
      • 1
      • 3
      • 1
      • 2
      • 1
      • 2
      • 3
  15. If one of the cardiac ventricles becomes hypertrophied, it will depolarize

    1. Before the other ventricle

    2. After the other ventricle

    3. More forcefully than the other ventricle

    4. With electrical properties identical to those of the other ventricle