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Body Fluids and Circulation

NEET 2017MCQEasy📈 Topic in 38% papers+4−1
Ques. 1NEET 2017

Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature?

  1. A only
  2. A, C and D only
  3. B and C only
  4. D only

Answer

(4) D only

Solution

Mature mammalian RBCs lack a nucleus and most organelles. As per NCERT, RBCs are rich in haemoglobin, and the absence of a nucleus leaves the entire internal space for haemoglobin ⇒ more oxygen can be carried (D is correct).

A: Not needing to reproduce is not the reason for losing the nucleus.

B: Being somatic cells does not explain it; most somatic cells are nucleated.

C: RBCs do metabolise (they respire anaerobically by glycolysis).

Answer: (4)

Keep practising — Body Fluids and Circulation

Ques. 2NEET 2017

The hepatic portal vein drains blood to liver from

  1. stomach
  2. kidneys
  3. intestine
  4. heart.
Ques. 3NEET 2016 (Phase 1)

Blood pressure in the pulmonary artery is

  1. more than that in the pulmonary vein
  2. less than that in the venae cavae
  3. same as that in the aorta
  4. more than that in the carotid.
Ques. 4NEET 2016 (Phase 2)

Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body.

  1. Erythrocytes
  2. Leucocytes
  3. Neutrophils
  4. Thrombocytes
Ques. 5NEET 2016 (Phase 2)

Serum differs from blood in

  1. lacking globulins
  2. lacking albumins
  3. lacking clotting factors
  4. lacking antibodies.
Ques. 6AIPMT 2015

Which one of the following animals has two separate circulatory pathways?

  1. Whale
  2. Shark
  3. Frog
  4. Lizard
Ques. 7AIPMT 2015

Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when

  1. AV node receives signal from SA node
  2. AV valves open up
  3. Ventricular walls vibrate due to gushing in of blood from atria
  4. Semilunar valves close down after the blood flows into vessels from ventricles.
Ques. 8AIPMT 2015

If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence ?

  1. Fibrinogen in plasma
  2. Haemocytes
  3. Serum albumins
  4. Serum globulins
Ques. 9AIPMT 2015 (Cancelled)

Erythropoiesis starts in

  1. spleen
  2. red bone marrow
  3. kidney
  4. liver
Ques. 10AIPMT 2015 (Cancelled)

Which one of the following is correct?

  1. Lymph = Plasma + RBC + WBC
  2. Blood = plasma + RBC + WBC + Platelets
  3. Plasma = Blood - Lymphocytes
  4. Serum = Blood + Fibrinogen
Ques. 11AIPMT 2015 (Cancelled)

Blood pressure in the mammalian aorta is maximum during

  1. systole of the left ventricle
  2. diastole of the right atrium
  3. systole of the left atrium
  4. diastole of the right ventricle.

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