NEET Biology Body Fluids and Circulation MCQs Set G

Question: Person with blood group B can donate blood to

• a) B and AB group and receive blood from group B
• b) B and receive blood from group AB
• c) O and receive blood from group B
• d) B and AB and receive blood from group AB

Answer: B and AB group and receive blood from group B

Question: A sample of blood shows clumping with antiserum A but not with antiserum B. The blood group would be

• a) O
• b) A
• c) B
• d) AB

Answer: A

Question:  An Rh^- individual receives Rh⁺ blood. the recipient becomes 

• a) Sterile
• b) Dead
• c) No reaction
• d) isoimmunised

Answer: isoimmunised

Question: Heparin is

• a) Antibacterial
• b) Antiallergic
• c) Anticoagulant
• d) Blood diluter

Answer: Anticoagulant

Question: Blood group AB has

• a) No antigen
• b) No antibody
• c) Neither antigen nor antibody
• d) Both antigen and antibody

Answer: No antibody

Question: In ventricular systole, oxygenated blood is pumped into

• a) Pulmonary artery and deoxygenated into artery
• b) Aorta and deoxygenated into pulmonary vein
• c) Pulmonary vein and deoxygenated into pulmonary artery
• d) Aorta and deoxygenated into pulmonary artery

Answer: Aorta and deoxygenated into pulmonary artery

Question: In aquatic mammals

• a) Heart will be small
• b) Heart will be large
• c) Lungs will be small
• d) Lungs will be large

Answer: Heart will be large

Question: SA node/pace maker helps in

• a) Initiation of heart beat
• b) Conduction of blood
• c) Opening of bicuspid valve
• d) Opening of tricuspid valve

Answer: Initiation of heart beat

Question: Oval RBCs are found in

• a) Rat
• b) Human
• c) Bat
• d) Camel

Answer: Camel

Question: Blood group A has

• a) Antibody a on RBC
• b) Antibody a in plasma
• c) Antigen A on RBC
• d) Antigen A in plasma

Answer: Antigen A on RBC

Question:  Majority of CO₂ produced by our body cells is transported to lungs .

• a) Attached to haemoglobin
• b) Dissolved in blood
• c) As bicarbonates
• d) As carbonates

Answer: As bicarbonates

Question: In normal blood pressure of 120/80 mmHg the numerator represents.

• a) Diastolic pressure
• b) Systolic pressure
• c) Pulse pressure
• d) Cardiac index

Answer: Systolic pressure

Question: The first heart sound is

• a) Lubb during closure of semilunar valves
• b) Dupp during closure of semilunar valves
• c) Lubb during closure of atrioventricular valves
• d) Dupp during closure of atrioventricular valves

Answer: Lubb during closure of atrioventricular valves

Question: Which one function as enzyme in blood clotting

• a) Prothrombin
• b) Calcium
• c) Thrombin
• d) Fibrin

Answer: Thrombin

Question: To obtain a standard ECG, a patient is connected to the machine by three electrodes .

• a) One to each wrist and to the left ankle
• b) One to each ankle and to the left wrist
• c) One to each wrist and to the left chest region
• d) One to each ankle and to the left chest region

Answer: One to each wrist and to the left ankle

Question: From which part of heart does the largest artery arise

• a) left ventricle
• b) right ventricle
• c) left atrium
• d) right atrium

Answer: left ventricle

Question: In order for the blood to flow from right ventricle to left ventricle in mammalian heart, it must flow through

• a) Right ventricle, pulmonary arteries, lungs pulmonary veins, left atrium
• b) Right ventricle, pulmonary veins, lungs, pulmonary arteries, left atrium
• c) Right ventricle, right atrium, lungs, pulmonary veins, left atrium
• d) Right ventricle, systemic aorta, lungs, pulmonary veins, left atrium

Answer: Right ventricle, pulmonary arteries, lungs pulmonary veins, left atrium

Question: Which of the following is not granulocytes .

• a) Basophils
• b) Erythrocytes
• c) Neutrophils
• d) Mast cells

Answer: Erythrocytes

Question: Bundle of His passes stimulus of contraction to ..

• a) AV node
• b) SA node
• c) Purkinje fibres
• d) Atrium

Answer: Purkinje fibres

Question: What is true of leucocytes?

• a) They undergo diapedesis or squeeze through capillary walls
• b) Sudden fall in number indicates cancer
• c) Produced in thymus
• d) Enucleate

Answer: They undergo diapedesis or squeeze through capillary walls

More Questions................................

Question: Pernicious anaemia is caused by .

• a) Low RBC count
• b) Death of WBC
• c) Obstruction of RBC maturation
• d) Destruction of young RBC

Answer: Obstruction of RBC maturation

Question: Which one contains minimum urea?

• a) Hepatic portal vein
• b) Hepatic vein
• c) Renal vein
• d) Dorsal aorta

Answer: Renal vein

Question: If nerves supplying heart are cut, the heart will .

• a) Shrink
• b) Beat arhythmically
• c) Beat rhythmically
• d) Stop

Answer: Beat arhythmically

Question: mammalian RBCs are enucleated so that

• a) Nucleus is nonessential for RBC
• b) RBCs cannot divide
• c) RBCs can carry Hb
• d) Nucleus does not show lethal effect

Answer: RBCs can carry Hb

Question: QRS is related to .

• a) Ventricular contraction
• b) Auricular contraction
• c) Cardiac cycle
• d) Auricular relaxation

Answer: Ventricular contraction

Question: Osmotic pressure is maintained by blood colloid

• a) Albumin
• b) Thrombin
• c) Fibrinogen
• d) Globulin

Answer: Albumin

Question: Blood group agglutinogen is

• a) Phosphoprotein
• b) Glycoprotein
• c) Haemoprotein
• d) Phospholipid

Answer: Glycoprotein

Question: A vein possesses a large lumen because ..

• a) Tunica media and tunica externa from a single coat
• b) Tunica interna and tunica media form a single coat
• c) Tunica interna, tunica media and tunica externa are thin
• d) Tunica media is a thin coat

Answer: Tunica media is a thin coat

Question: Cardiac output is

• a) 4 litres/minute
• b) 5.3 litres/ minute
• c) 6.3 litres/ minute
• d) 73. litres/ minute

Answer: 5.3 litres/ minute

Question: Tooth extraction in a haemophilic person may cause death due to excessive bleeding because of ..

• a) Absence of plasma factor required to convert prothrombin into thrombin
• b) Presence of plasma factor that causes haemorrhage
• c) Presence of plasma factor that prevents blood clotting
• d) Absence of plasma factor required for haemorrhage

Answer: Absence of plasma factor required to convert prothrombin into thrombin

Question: Valve surrounding opening of coronary sinus is .

• a) Thebesius valve
• b) Eustachian valve
• c) Mitral valve
• d) Semilunar valve

Answer: Thebesius valve

Question: Number of action potentials that can be generated by sinoatrial node is .

• a) 40 -50/min
• b) 60 -80/min
• c) 60 -100/min
• d) 100 -120/min

Answer: 60 -100/min

Question: The artery can be distinguished from the vein in having .

• a) Thick walls
• b) More blood cells
• c) More plasma
• d) Larger cavity

Answer: Thick walls

Question: Haemoglobin value for a healthy adult male is ..

• a) 10g/100 ml
• b) 11 g/100ml
• c) 12g/100 ml
• d) 14-15 g/100ml

Answer: 14-15 g/100ml

Question: Which best describes a lymph node?.

• a) Any organ that is being attacked by pathogens
• b) A capsule in the lymph vessels that are filled with B cells and T cells
• c) A special kind of immune cell that is found in the lymph
• d) RBC

Answer: A capsule in the lymph vessels that are filled with B cells and T cells

Question: What is true ? .

• a) All veins carry deoxygenated blood
• b) All arteries carry oxygenated blood
• c) All veins except one carry oxygenated blood
• d) All arteries except one carry oxygenated blood

Answer: All arteries except one carry oxygenated blood

Question: How many double circulations are normally completed by human heart in one minute? .

• a) Eight
• b) Sixteen
• c) Thirty six
• d) Seventy two

Answer: Seventy two

Question: Louder sound of heart beat occurs during closure of .

• a) Tricuspid valve
• b) Auriculo-ventricular valves
• c) Mitral valve
• d) Semilunar valves

Answer: Auriculo-ventricular valves

Question: In purpura, the purple-blue patch is caused by thrombocytopenic change of haemoglobin to .

• a) Blue
• b) Yellow
• c) White
• d) Red-black

Answer: Red-black

Question: Rh factor was discovered by ..

• a) Harvey
• b) Landsteiner and Weiner
• c) Watson
• d) Landsteiner

Answer: Landsteiner and Weiner

Question:  Match the columns 

• a) a - s, b - r, c - p, d - t
• b) a - r, b - t, c - s, d - p
• c) a - r, b - s, c - t, d - p
• d) a - s, b - q, c - p, d - t

Answer: a - r, b - s, c - t, d - p

Question: Systole is contraction of .

• a) AV node
• b) SA node
• c) Major arteries
• d) Atria and ventricles

Answer: Atria and ventricles

Question: 

Assertion: Person with blood group AB can take blood from any person.

Reason: Blood group AB has no antibody and thus antigen of other group is not affected .

• a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
• b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
• c) Assertion is true but, Reason is false
• d) Assertion is false but, Reason is true

Answer: Both Assertion and Reason are true and Reason is the correct explanation of Assertion

Question: Fewer elastic fibers are found in

• a) tunica media near heart
• b) tunica media away from heart
• c) arteries
• d) veins

Answer: tunica media away from heart

Question: Cardiac output is blood

• a) Received by heart per minute
• b) Pumped by ventricles per sec
• c) Pumped by each ventricle per minute
• d) Pumped by left ventricle per hour

Answer: Pumped by each ventricle per minute

Question: Murmur occurs due to defect in .

• a) Malpighian tubules and excretion
• b) Tracheae and respiration
• c) Heart and circulation
• d) None of the above

Answer: Heart and circulation

Question: Oxygenated blood from lungs enters heart through ..

• a) Pulmonary vein
• b) Pulmonary artery
• c) Coronary system
• d) Coronary vein

Answer: Pulmonary vein

Question: Heparin is connected with

• a) Coagulation
• b) Prevention of blood coagulation
• c) Dilution of blood
• d) Buffering of blood

Answer: Prevention of blood coagulation

Question: Hardening of arteries due to deposition of cholesterol is .

• a) Atherosclerosis
• b) Thrombosis
• c) Stenosis
• d) Rhinitis

Answer: Atherosclerosis

Question: Haemophilia is

• a) Royal disease
• b) Faulty blood clotting
• c) Both A and B
• d) Mosquito having haemocoel

Answer: Both A and B

Question: Oxygen carries in human blood is .

• a) Iron
• b) Methaemoglobin
• c) Haemoglobin
• d) Haemocyanins

Answer: Haemoglobin

Question: A vein starts from capillaries and ends in capillaries ..

• a) Phrenic
• b) Coronary
• c) Portal vein
• d) Internal jugular

Answer: Portal vein

Question: Pulmonary vein carries oxygenated blood from .

• a) Heart to its walls
• b) Heart to lungs
• c) Lungs to heart
• d) Heart to all body parts

Answer: Lungs to heart

Question: Which of the following pairs, the two terms represent the same thing? .

• a) Lymphocyte - leucocyte
• b) Plasma - serum
• c) Mitral valve - bicuspid valve
• d) Atrioventricular node – pacemaker

Answer: Mitral valve - bicuspid valve

Question: In normal adult man B.P. is ..

• a) 00/80 mmHg
• b) 120/80 mmHg
• c) 100/120 mmHG
• d) 80/120 mmHg

Answer: 120/80 mmHg

Question: How many times a red blood corpuscle will have to pass through the heart in its journey from hepatic artery?

• a) Once
• b) Two times
• c) Four times
• d) Several times

Answer: Two times

Question: Thromboplastin required for blood clotting at the place of injury is released by .

• a) Blood platelets
• b) Eosinophils
• c) Neutrophils
• d) Lymphocytes

Answer: Blood platelets

Question: Choose the correct option : (i) Human heart is ectodermal in origin. (ii) Mitral valve guards the opening between right atrium and left ventricle. (iii) SAN is located on the left upper corner of right atrium. (iv) Stroke volume × Heart rate = Cardiac output

• a) i alone is correct
• b) i and ii alone are correct
• c) ii and iii alone are correct
• d) iii and iv alone is correct

Answer: iii and iv alone is correct

Question: Volume of blood each ventricle pumps out during a cardiac cycle is about ..

• a) 70 ml
• b) 51 ml
• c) 40 ml
• d) 1200 ml

Answer: 70 ml

Question: Husband and wife should know their Rh factors because the situation can be serious due to biological incompatibility in one of the following cases ..

• a) Rh⁺ husband and Rh⁺ wife 
• b) Rh^- husband and Rh^- wife 
• c) Rh^- husband and Rh⁺ wife 
• d) Rh⁺ husband and Rh^- wife

Answer:  Rh⁺ husband and Rh^- wife

Question: Which one of the following minerals controls heart?

• a) Sulphur
• b) Sodium
• c) Iron
• d) Potassium

Answer: Sodium