Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

 Multiple Choice QuestionsMultiple Choice Questions

1.

A human RBC is placed in 1.5% salt solution. It will

  • swell up

  • shrink

  • remain unaffected

  • burst


B.

shrink

For human RBC, 0.9% salt solution is isotonic. Therefore, a medium of 1.5 % salt solution would be hypertonic i.e. more concentrated. Hence, RBC shrinks due to exosmosis.


2.

All veins carry deoxygenated blood except

  • pulmonary vein

  • hepatic vein

  • hepatic portal vein

  • renal vein


A.

pulmonary vein

Pulmonary vein carries oxygenated blood from the lungs to the left atrium of the heart.

Hepatic Vein, hepatic portal vein and renal vein carry deoxygenated blood.


3.

Assertion: WBCs accumulate at the site of wounds by diapedesis.

Reason : It is the squeezing of leucocytes from
the endothelium.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both the assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both the assertion and reason are false.


B.

If both the assertion and reason are true but reason is not the correct explanation of assertion.

During a wound, germs are removed by the process of phagocytosis by WBCs. WBCs or whit Blood Cells accumulate at the site of wound by diapedesis. Diapedesis is the squeezing of leucocytes out from the endothelium of capillaries to fight against foreign agent.


4.

Assertion : Smaller the organism higher is the rate of metabolism per gram weight.

Reason : The heart rate of a six month old baby is much higher than that of an old person.

  • If both Assertion and Reason are true and the reason is the correct explanation of the assertion

  • If both Assertion and Reason are true but the reason is not the correct explanation of the assertion

  • If Assertion is true statement but Reason is false

  • If both Assertion and Reason are false statements


C.

If Assertion is true statement but Reason is false

BMR or Basal Metabolic Rate is the rate at which body uses energy while at rest to maintain vital functions such as breathing and keeping warm. It can be  determined by total body weight and the amount of muscle mass. It is inversely related with the weight/ volume of an organism, i.e. smaller the organism, higher is the basal metabolic rate and vice versa.

Heart rate of six month old baby is 110-112 beats/ min. Though, it is higher than normal adult person, but it is lower than the old person. At the age of 60, a man may have maximum heart rate of 160 beats/min (avg 120 beats/min.)


5.

Which one of the following is a matching pair of a certain body feature and its value/count in a normal human adult?

  • Urea- 5 - 10 mg/100 ml of blood

  • Blood sugar (fasting) - 80 - 100 mg/100 ml

  • Total blood volume - 3 - 4 litres

  • ESR in Wintrobe method - 9 -15 mm in males and 20 - 34 mm in females


B.

Blood sugar (fasting) - 80 - 100 mg/100 ml

Normal blood sugar level in adult human varies from 80 - 100 mg/100 ml (fasting) to 100-120 mg/100 ml (after meal).

Normal blood urea is 20 - 40 mg/dl

Total blood volume is 4 - 5 litres

ESR or Erythrocyte Sedimentation Rate in wintrobe method is 0 - 9 mm in male and 0 - 20 mm in female.


6.

Which one of the following is a matching pair?

  • Lubb - sharp closure of AV valves at the beginning of ventricular systole

  • Dup - sudden opening of semilunar valves at the beginning of ventricular diastole

  • Pulsation of the radial artery - valves in the blood vessels

  • Initiation of the heart beat - Purkinje fibres


A.

Lubb - sharp closure of AV valves at the beginning of ventricular systole

The gradually increasing contraction of ventricular muscles during systole first causes the closure of bicupsid and tricupsid valves (AV valves), producing a low- pitched "lubb" sound. Later, it causes the opening of the semilunar valves of systemic and pulmonary aorta. At the end of ventricular systole, semilunar valves shut, producing the second, louder heart sound, the "dup". Thus, each heart beat is accompained by a "lubb- dup" sound.


7.

Assertion : The regulation of RBC production is accompanied by the kidneys.

Reason : Erythropoietin hormone circulates to the red bone marrow, where it increases stem cell mitosis and speeds up the development of RBCs.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both the assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both the assertion and reason are false.


A.

If both assertion and reason are true and reason is the correct explanation of assertion.

The regulation of RBC production is accomplished by the hormone erythropoietin which is secreted by the juxtaglomerular cells of kidney. This hormone circulates to the red bone marrow, where it increases stem cell (myoblasts) mitosis and speeds the development of red blood cells.


8.

The universal recipient blood group is :

  • O (+ ve)

  • AB (+ ve)

  • O (- ve)

  • AB (- ve)


B.

AB (+ ve)

According to Landsteiner and Decastello four types of blood groups (A, B, AB and O) are found in humans. Landsteiner and Veiner (1940) also discovered Rh factor which is represented by +ve  or -ve mark. AB (+ve) is the universal recipient blood group and O (+ve) is the universal donor blood group.


9.

Which of the following is wrongly matched?

  • Haemoglobin in mammals - RBC

  • Haemozoin - Plasmodium cytoplasm

  • Haemocyanin- prawn

  • Haemoglobin dissolved in blood - Pheretima


C.

Haemocyanin- prawn

In arthropods like prawn, the blood is colourless and contains WBCs only. The blue respiratory pigment, haemocyanin is present in the blood of molluscs. The RBCs of mammals contain the red pigment haemoglobin which carries oxygen.


10.

Which vertebrate orgen receives only oxygenated blood?

  • Gill

  • Lung

  • Spleen

  • Liver


C.

Spleen

Spleen is the organ that receives only oxygenated blood. Lungs and gills receive both oxygenated and deoxygenated blood. Liver receives deoxygenated blood through hepatic portal system for extracting excess quantities of digested nutrients.