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  • Question 1 - A 22 year old woman miscarries at 6 weeks gestation. At checkup, she...

    Correct

    • A 22 year old woman miscarries at 6 weeks gestation. At checkup, she shows no obvious signs of complication. What would you advise regarding further pregnancy testing?

      Your Answer: Urine pregnancy test in 3 weeks

      Explanation:

      In the management of a miscarriage, after the completion of 7-14 days of expectant management, the woman is advised to take a pregnancy test after 3 weeks. In case of a positive result she is to return for further care.

    • This question is part of the following fields:

      • Biochemistry
      4.4
      Seconds

  • Question 2 - With regard to the cell cycle. In which part of the cycle does...

    Correct

    • With regard to the cell cycle. In which part of the cycle does DNA replication occur?

      Your Answer: Interphase

      Explanation:

      DNA replication occurs during S phase but that isn’t one of the options. Remember Interphase comprises G1,S and G2 phases!

    • This question is part of the following fields:

      • Biochemistry
      6.6
      Seconds

  • Question 3 - What is the main biochemical buffer in urine? ...

    Incorrect

    • What is the main biochemical buffer in urine?

      Your Answer: Bicarbonate

      Correct Answer: Phosphate

      Explanation:

      Phosphate and ammonia are the major urinary buffers

    • This question is part of the following fields:

      • Biochemistry
      2
      Seconds

  • Question 4 - What is the main biochemical buffer in blood? ...

    Correct

    • What is the main biochemical buffer in blood?

      Your Answer: Bicarbonate

      Explanation:

      Bicarbonate serves as the main buffer in the blood. Other than this phosphate, ammonia and haemoglobin also act as buffers to some extent.

    • This question is part of the following fields:

      • Biochemistry
      1.9
      Seconds

  • Question 5 - Which of the following prolongs Prothrombin time? ...

    Correct

    • Which of the following prolongs Prothrombin time?

      Your Answer: Factor V deficiency

      Explanation:

      Prothrombin time is increased in:
      – Factor V deficiency
      – Vitamin K deficiency (which affects factors 2,7 and 10)
      – Warfarin therapy
      – Severe liver failure
      Protein C is an anticoagulant and deficiency results in a hyper-coagulable state with tendency towards thrombosis.

    • This question is part of the following fields:

      • Biochemistry
      16.5
      Seconds

  • Question 6 - What is the main biochemical buffer in blood? ...

    Correct

    • What is the main biochemical buffer in blood?

      Your Answer: Bicarbonate

      Explanation:

      Bicarbonate is the main buffer in blood.

    • This question is part of the following fields:

      • Biochemistry
      2.8
      Seconds

  • Question 7 - Which of the following pathology terms refers to programmed cell death? ...

    Correct

    • Which of the following pathology terms refers to programmed cell death?

      Your Answer: Apoptosis

      Explanation:

      Apoptosis is described as programmed cell death. The cell release certain proapoptotic mediators that regulate this cell death.

    • This question is part of the following fields:

      • Biochemistry
      2.8
      Seconds

  • Question 8 - With regard to the cell cycle. In what phase do chromatids get cleaved...

    Correct

    • With regard to the cell cycle. In what phase do chromatids get cleaved into chromosomes and pulled apart?

      Your Answer: Anaphase

      Explanation:

      Mitosis is the process during which cell division occurs. It is divided into 4 stages:
      – The first stage is the prophase during which the chromosomes condense, mitotic spindles form and the chromosomes pair which each other.
      – The second stage is the metaphase during which the chromatids align at the equatorial plane.
      – The third stage is the anaphase during which the chromatids are separated into 2 daughter chromosomes.
      – The fourth phase is the telophase during which the chromatids decondense and a new nuclear envelop forms around the each of the daughter chromosomes. Cytokinesis is the process during which the cell cytoplasm divides.

    • This question is part of the following fields:

      • Biochemistry
      3.8
      Seconds

  • Question 9 - Fibrinogen is activated by which of the following? ...

    Correct

    • Fibrinogen is activated by which of the following?

      Your Answer: Thrombin

      Explanation:

      Fibrinogen is activated by thrombin which converts it into fibrin which forms a mesh to trap red blood cells and form a clot.

    • This question is part of the following fields:

      • Biochemistry
      11
      Seconds

  • Question 10 - Which of the following factors shifts the oxygen dissociation curve to the right?...

    Correct

    • Which of the following factors shifts the oxygen dissociation curve to the right?

      Your Answer: Increased [H+]

      Explanation:

      The following shift the oxygen dissociation curve to the right: Increased temperature Increased H+ (i.e. acidosis) Increased 2,3 DPG Increased pCO2 The following shift the oxygen dissociation curve to the left: Increasing pCO shifts the curve to the left Decreased temperature Decreased [H+] (alkalosis) Decreased 2,3 DPG The Oxygen Dissociation Curve for fetal haemoglobin lies to the left of the normal adult Oxygen Dissociation Curve as it has a higher affinity for Oxygen.

    • This question is part of the following fields:

      • Biochemistry
      6.3
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Biochemistry (9/10) 90%
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