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Body Fluids and Circulation · Question 16

NEET (UG) 2022 (Phase 2)MCQEasy📈 Topic in 38% papers+4−1
1

Arrange the following formed elements in the decreasing order of their abundance in blood in humans: Choose the most appropriate answer from the options given below:

  1. A, C, B, D, E
  2. C, A, B, E, D
  3. C, B, A, E, D
  4. D, E, B, A, C

Answer

(2) C, A, B, E, D

Solution

As per NCERT (counts in a healthy adult):

Erythrocytes (C): 5–5.5 million mm-3

Platelets (A): 1.5–3.5 lakh mm-3

Leucocytes: 6000–8000 mm-3, of which neutrophils (B) 60–65%, monocytes (E) 6–8%, eosinophils (D) 2–3%

∴ Decreasing order: Erythrocytes > Platelets > Neutrophils > Monocytes > Eosinophils, i.e. C, A, B, E, D

Answer: (2)

NEET (UG) 2022 (Phase 2)

Keep practising — Body Fluids and Circulation

2

Persons with 'AB' blood group are called as "Universal recipients". This is due to :

  1. Absence of antibodies, anti-A and anti-B, in plasma
  2. Absence of antigens A and B on the surface of RBCs
  3. Absence of antigens A and B in plasma
  4. Presence of antibodies, anti-A and anti-B, on RBCs
NEET (UG) 2021
3

Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins?

  1. Thrombokinase
  2. Thrombin
  3. Renin
  4. Epinephrine
NEET (UG) 2021
4

Match the following columns and select the correct option.

  1. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
  2. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
  3. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
  4. (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
NEET (UG) 2020
5

The QRS complex in a standard ECG represents

  1. Repolarisation of ventricles
  2. Repolarisation of auricles
  3. Depolarisation of auricles
  4. Depolarisation of ventricles
NEET (UG) 2020
6

Match the Column-I with Column-II : Select the correct option.

  1. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
  2. (a)-(iv), (b)-(i), (c)-(ii), (d)-(v)
  3. (a)-(ii), (b)-(i), (c)-(v), (d)-(iii)
  4. (a)-(ii), (b)-(iii), (c)-(v), (d)-(iv)
NEET (UG) 2019
7

What would be the heart rate of a person if the cardiac output is 5 L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL?

  1. 100 beats per minute
  2. 125 beats per minute
  3. 50 beats per minute
  4. 75 beats per minute
NEET (UG) 2019
8

Match the items given in column I with those in column II and select the correct option given below.

  1. (a)-(i), (b)-(ii), (c)-(iii)
  2. (a)-(iii), (b)-(i), (c)-(ii)
  3. (a)-(i), (b)-(iii), (c)-(ii)
  4. (a)-(ii), (b)-(i), (c)-(iii)
NEET 2018
9

Match the items given in column I with those in column II and select the correct option given below.

  1. (a)-(i), (b)-(iii), (c)-(ii)
  2. (a)-(iii), (b)-(ii), (c)-(i)
  3. (a)-(ii), (b)-(iii), (c)-(i)
  4. (a)-(i), (b)-(ii), (c)-(iii)
NEET 2018
10

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
NEET 2017
11

The hepatic portal vein drains blood to liver from

  1. stomach
  2. kidneys
  3. intestine
  4. heart.
NEET 2017

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