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31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - NEET MCQ


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25 Questions MCQ Test Biology 31 Years NEET Chapterwise Solved Papers - 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 for NEET 2024 is part of Biology 31 Years NEET Chapterwise Solved Papers preparation. The 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 questions and answers have been prepared according to the NEET exam syllabus.The 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 below.
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31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 1

Antigens are present [1995]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 1

Antigens are foreign proteins, which stimulate specific immune response (antibody) against itself when introduced into the body. They are present on the surface of cell wall.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 2

The correct route through which pulsemaking impulse travels in the heart is [1995]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 2

The pulse making impulse travels in the heart in the order of SA node→AV node→bundle of His→Purkinje fibres→heart muscles.

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31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 3

The blood cancer is known as [1995]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 3

The leukaemia is a type of blood cancer, which is characterized by an uncontrolled increase in the number (through mitosis) of leucocytes in the blood.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 4

Which one of the following vertebrate organs receives the oxygenated blood only ? [1996]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 4

Spleen and brain are the organs which receive only oxygenated blood. In gills and lungs blood picks up oxygen.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 5

Which one of the following statements about blood constituents and transport of respiratory gases is most accurate ? [1996]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 5

About 97 per cent of O2 is transported by RBCs in the blood. The remaining 3 per cent of O2 is carried in a dissolved state through the plasma. Nearly 20-25 per cent of CO2 is transported by RBCs whereas 70 per cent of it is carried as bicarbonate. About 7 per cent of CO2 is carried in a dissolved state through plasma.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 6

Which of the following is not a granulocyte? [1997] 

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 6

White blood cells are of two types : (i) Granulocytes (with granular cytoplasm) - neutrophils, basophils and eosinophils. (ii) Agranulocytes (with clear cytoplasm)  - Lymphocytes and monocytes

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 7

The life span of human W.B.C. is approximately [1997]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 7

The life span of WBC ranges from 6 - 20 days, depending on the type, after which they are destroyed in the lymphatic system. When immature WBCs are first released from the bone marrow into the blood, they are called bands or stabs.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 8

In mammals, histamine is secreted by [1998]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 8

Histamine is a potant vasodilator  formed by decarboxylation of the amino acid histidine and released by mast cells in response to appropriate antigens.
Mast cells are especially prevalent in the connective tissue of the skin and respiratory tract and in surrounding blood vessels.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 9

An adult human with average health has systolic and diastolic pressures as [1998]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 9

An adult human with average health has systolic and diastolic pressures as 120 mm Hg and 80 mm Hg respectively.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 10

With respect to the ABO group, there are four major blood types because this blood group is determined by [1998]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 10

Blood group is determined by three alleles - IA, IB, and Io. Alleles IA and IB are codominant. Blood group A is determined by IA IA or IA  Io. Blood group B is IB IB or IB Io. Blood group O is Io Io. Blood group AB is IA IB.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 11

Contraction of the ventricle in the heart begins by the command from [1999]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 11

SA is the site of generation of the rhythmic cardiac impulse. AV node is a compact mass of  myogenic fibres which receives impulse from SA node and transmits it to ventricles. Purkinje fibres are in contact with the contractile muscles of the ventricular walls. Chordae tendinae are the muscles which keep the AV valves  in position.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 12

Pulmonary artery differ from pulmonary vein in having [2000]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 12

Arteries have thick wall and  narrow lumen while veins have thin walls and large lumen. Arteries do not have valves.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 13

What is true about leucocytes ? [2000]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 13

Leucocytes  are colourless, nucleated amoeboid cells found in blood which are devoid of  haemoglobin and are  capable of coming out of blood capillaries through the process of diapedesis. Fall of  WBC count is called leucopenia, and occurs due to folic acid deficiency and AIDS etc. 

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 14

As the age advances, there is a gradual thinning of hair in human males. This is mainly because of lowered [2000]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 14

Reduced protein synthesis causes thinning of hairs.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 15

Sickle cell anaemia is induced by [2001]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 15

Sickle cell anaemia is a hereditary disorder of autosomal nature caused  by mutation of the gene controlling b-chain of haemoglobin. It involves substitution of glutamine by valine.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 16

What is correct for blood group ‘O’? [2001]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 16

Blood group ‘O’ is known as the universal donor since it does not contain antigens.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 17

Impulse of heart beat originates from [2002]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 17

S.A node is called the pacemaker because it initiates the cardiac impulse AV node receives the impulse from the S.A  node and transmits it to the ventricles

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 18

Which of the following statments is true for lymph? [2002]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 18

Lymph (called tissue fluid in the intercellular spaces) is a vascular tissue consisting of two parts-a clear, colourless fluid matrix, the plasma and floating amoeboid cells, the white blood cells, mostly lymphocytes. It differs from the blood in lacking red blood cells and some blood proteins. The lymph eventually enters the bloods near the heart.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 19

Systemic heart refers to 

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 19

The answer is Option C because systemic heart refers to systemic circulation of blood, which is done only through the left auricles and left ventricles combined effort.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 20

Bundle of His is a network of [2003]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 20

The atrioventricular bundle (AV bundle), on entering the ventricles splits into right and left branches. These branches then enter  the heart muscles. They branch extensively and are called Purkinje fibres. They conduct the cardiac impulse to the ventricular wall. 

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 21

In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be [2004]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 21

Blood group AB is also known as the universal recipient.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 22

You are required to draw blood from a patient and to keep it in a test tube for analysis of blood corpuscles and plasma. You are also provided with the following four types of  test tubes. Which of them will you not use for the purpose? [2004]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 22

Presence of calcium will remove heparin - blood anti-coagulant and will promote blood clotting. Sodium oxalate and heparin containing test tubes will not allow the blood to clot.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 23

The cardiac pacemaker in a patient fails to function normally. The doctors find that an artificial pacemaker is to be grafted in him. It is likely that it will be grafted at the site of

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 23

SA node is the natural pacemaker located in the right atrium. SA node initiates the cardiac impulse. So, artificial pacemaker will be grafted at the site of SA node

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 24

Damage to thymus in a child may lead to: [2005]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 24

The thymus is a major gland of our immune system. The thymus is responsible for production of T (thymus dervied) lymphocytes from immature lymphocytes, a type of white blood cells responsible for cell mediated immunity. Cell mediated immunity is extremely important for raising immune response against bacteria, yeast, fungi, parasites and virus. It is also critical in protecting against cancer, autoimmune disorders like rheumatoid arthritis, allergies etc.

31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 25

Which one of the following statements is incorrect ? [2006]

Detailed Solution for 31 Years NEET Previous Year Questions: Body Fluids & Circulation - 2 - Question 25
  • Residual capacity is that portion of air contained in the lungs which can not be expelled even by the most violent expiratory effort.
  • Residual air is actually part of dead space & it doesn't play active part in respiration.
  • Therefore, residual air in lungs dont affect efficiency of respiration.
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