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Body Fluids and Circulation · Question 49

AIPMT 2011 (Prelims)MCQEasy📈 Topic in 50% papers+4−1
1

A person with unknown blood group under ABO system, has suffered much blood loss in an accident and needs immediate blood transfusion. His friend who has valid certificate of his own blood type, offers for blood donation without delay. What would have been the type of blood group of the donor friend?

  1. Type B
  2. Type AB
  3. Type O
  4. Type A

Answer

(3) Type O

Solution

∵ The recipient's blood group is unknown, the donor's red cells must not carry any A or B antigen that could react with the recipient's plasma antibodies.

As per NCERT, blood group O has no antigens A or B on its RBCs, so it can be given to persons of groups A, B, AB and O.

∴ Persons with blood group O are called universal donors; the friend must be of type O.

Answer: (3)

AIPMT 2011 (Prelims)

Keep practising — Body Fluids and Circulation

2

Fastest distribution of some injectable material/medicine and with no risk of any kind can be achieved by injecting it into the

  1. muscles
  2. arteries
  3. veins
  4. lymph vessels
AIPMT 2010 (Mains)
3

Given below are four statements (i – iv) regarding human blood circulatory system. (i) Arteries are thick-walled and have narrow lumen as compared to veins. (ii) Angina is acute chest pain when the blood circulation to the brain is reduced. (iii) Persons with blood group AB can donate blood to any person with any blood group under ABO system. (iv) Calcium ions play a very important role in blood clotting. Which two of the above statements are correct?

  1. (i) and (iv)
  2. (i) and (ii)
  3. (ii) and (iii)
  4. (iii) and (iv)
AIPMT 2010 (Mains)
4

The haemoglobin content per 100 mL of blood of a normal healthy human adult is

  1. 5–11 g
  2. 25–30 g
  3. 17–20 g
  4. 12–16 g
AIPMT 2010 (Mains)
5

If due to some injury the chordae tendineae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?

  1. The flow of blood into the aorta will be slowed down
  2. The 'pacemaker' will stop working
  3. The blood will tend to flow back into the left atrium
  4. The flow of blood into the pulmonary artery will be reduced
AIPMT 2010 (Prelims)
6

There is no DNA in

  1. mature RBCs
  2. a mature spermatozoan
  3. hair root
  4. an enucleated ovum.
AIPMT 2009
7

In a standard ECG which one of the following alphabets is the correct representation of the respective activity of the human heart?

  1. S - start of systole
  2. T - end of diastole
  3. P - depolarisation of the atria
  4. R - repolarisation of ventricles
AIPMT 2009
8

Globulins contained in human blood plasma are primarily involved in

  1. osmotic balance of body fluids
  2. oxygen transport in the blood
  3. clotting of blood
  4. defence mechanisms of body.
AIPMT 2009
9

Compared to blood our lymph has

  1. plasma without proteins
  2. more WBCs and no RBCs
  3. more RBCs and less WBCs
  4. no plasma.
AIPMT 2009
10

In humans, blood passes from the post caval to the diastolic right atrium of heart due to

  1. stimulation of the sino auricular node
  2. pressure difference between the post caval and atrium
  3. pushing open of the venous valves
  4. suction pull
AIPMT 2008
11

The most active phagocytic white blood cells are

  1. eosinophils and lymphocytes
  2. neutrophils and monocytes
  3. neutrophils and eosinophils
  4. lymphocytes and macrophages
AIPMT 2008

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