NEET Biology Body Fluids and Circulation MCQs Set E

Question: Valves occur in

• a) Arteries, veins and auricles
• b) Atria, ventricles and veins
• c) Arteries, veins and ventricles
• d) SA mode, AV node and veins

Answer: Atria, ventricles and veins

Question: Sphygmomanometer is an instrument used to record .

• a) Systemic pressure
• b) Diastolic pressure
• c) Cardiac output
• d) Both A and B

Answer: Both A and B

Question: Which one of the following proteins is involved in the coagulation of blood

• a) Globulin
• b) Fibrinogen
• c) Albumin
• d) Serum amylase

Answer: Fibrinogen

Question: Thickening of walls of arteries is

• a) Arthritis
• b) Aneurysm
• c) Arteriosclerosis
• d) Both A and B

Answer: Arteriosclerosis

Question: If due to some injury, chordae tendineae of tricuspid valve of the heart are partially nonfunctional, what will be the immediate effect

• a) The 'Pace-maker' will stop working
• b) Blood will tend to flow back into left atrium
• c) Flow of blood into pulmonary artery will be reduced
• d) Flow of blood into aorta will be slowed down

Answer: Flow of blood into pulmonary artery will be reduced

Question: Starlin's law of heart

• a) Greater the stroke volume, greater is the heart rate
• b) Greater the initial length of cardiac muscle fibre, more is the force of contraction of heart
• c) Lesser the length of cardiac muscle fibre, greater the force of contraction
• d) Greater the minute volume, greater is the heart rate.

Answer: Greater the initial length of cardiac muscle fibre, more is the force of contraction of heart

Question: Lymphoid tissue is

• a) Thymus
• b) Tonsils
• c) Lymph nodes
• d) All the above

Answer: All the above

Question: Which is correct about leucocytes

• a) They are red coloured
• b) They can cross capillaries
• c) They are enucleate
• d) Decrease in their number causes leukemia

Answer: They can cross capillaries

Question: Blood is deoxygenated in

• a) Pulmonary artery
• b) Pulmonary vein
• c) Aorta
• d) Carotid artery

Answer: Pulmonary artery

Question: Pulmonary artery differs from pulmonary vein in having

• a) Thick wall
• b) Thin wall
• c) Valves
• d) Both B and C

Answer: Thick wall

Question: Assertion: Smaller the organism, higher is the rate of metabolism per gm weight. Reason: Heart rate of six month old baby is much higher than an old person.

• 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: The Assertion and Reason are true but Reason is not correct explanation of Assertion

Question: Allergic responses are regulated by

• a) Eosinophils
• b) Neutrophils
• c) Basophils
• d) Monocytes

Answer: Eosinophils

Question: Parents with blood group O and AB cannot have AB child as

• a) Gene for O is dominant over gene for B
• b) Gene for O is dominant over gene for A
• c) Genes for A and B are absent in one of parents
• d) Gene for A or B is absent in one of the parents

Answer: Genes for A and B are absent in one of parents

Question:   Blood vessel carrying least CO₂ is 

• a) Pulmonary vein
• b) Pulmonary artery
• c) Vena Cava
• d) Hepatic vein

Answer: Pulmonary vein

Question: Person with blood group A possess

• a) Antigen A and antibodies b
• b) Antigen A and antibodies a
• c) No antigen but antibodies a and b
• d) Antigens A and B but no antibodies

Answer: Antigen A and antibodies b

Question: Statement

(1) Plasma constitutes 45% of blood

(2) Albumin is plasma protein involved in osmotic balance.

(3) Blood clotting factors are present in blood.

(4) Plasma without clotting factors is serum.

(5) Minerals are not found in blood.

• a) 1 - 4 correct, 5 wrong
• b) 1 - 2 correct, 3,4,5 wrong
• c) 2, 3, 4 correct, 1 and 5 wrong
• d) 2 and 4 correct, 1, 3, 5 wrong

Answer: 2, 3, 4 correct, 1 and 5 wrong

Question: Glucose is carried from digestive tract to liver by

• a) Hepatic artery
• b) Hepatic portal vein
• c) Pulmonary vein
• d) None of the above

Answer: Hepatic portal vein

Question: Lymph is colourless because

• a) WBC are absent
• b) WBC are present
• c) Haemoglobin is absent
• d) RBC are absent

Answer: RBC are absent

Question: Transfused thrombocytes have a life of

• a) 3- 4 weeks
• b) 4- 5 weeks
• c) 3- 4 days
• d) None of the above

Answer: 3- 4 days

Question: Parents belong to blood group A and B. Blood group of their child would be

• a) A or B
• b) O
• c) AB
• d) All the above

Answer: All the above

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

Question: Lymph

• a) Transports O₂ to brain
• b) Transports of CO₂ to lungs
• c) Returns interstitial fluid to blood
• d) Returns RBCs and WBCs to lymph nodes

Answer: Returns interstitial fluid to blood

Question: Thrombocytes have a life of

• a) 3 - 4 weeks
• b) 4 - 5 weeks
• c) 3 -4 days
• d) None of the above

Answer: 3 -4 days

Question: Vasoconstriction causes

• a) Increases in heart beat
• b) Decrease in heart beat
• c) Increase in blood pressure
• d) Decrease in blood pressure

Answer: Increase in blood pressure

Question: Blood group is due to

• a) Specific antigens on the surface of WBC
• b) Specific antibodies on the surface of RBC
• c) Specific antigens on the surface of RBC
• d) Types of haemoglobin

Answer: Specific antigens on the surface of RBC

Question: Heart covering is

• a) Peritoneum
• b) Pleural membrane
• c) Pericardium
• d) Visceral membrane

Answer: Pericardium

Question: papillary muscles occur in

• a) Ventricles
• b) Auricles
• c) Atrioventricular valves
• d) Pulmonary valves

Answer: Ventricles

Question: Which one has no role in blood coagulation?

• a) Fibrinogen
• b) Calcium
• c) Vitamin K
• d) Vitamin D

Answer: Vitamin D

Question: Pace maker of heart is

• a) AV node
• b) Bundle of His
• c) SA node
• d) Purkinje fibres

Answer: SA node

Question: Which one is a mismatch?

• a) Nerve - impulse
• b) Monocyte - haemoglobin
• c) Heart - pacemaker
• d) Muscular movement – ATP

Answer: Monocyte - haemoglobin

Question: Heart keeps on beating throughout life without fatigue as it

• a) Contracts slowly
• b) Has a resting or recovery period
• c) Can metabolize lactic acid for energy
• d) None of the above

Answer: Has a resting or recovery period

Question: Rh factor is connected to species of monkey

• a) Macacaradiata
• b) Presbytes rhesus
• c) Macaca rhesus
• d) Macacamulatta

Answer: Macaca rhesus

Question: Polycythemia is characterised by

• a) Decrease in O₂ content 
• b) Increase in RBC content
• c) Decrease in RBC content
• d) Increase in WBC content

Answer: Increase in RBC content

Question: Maximum surface area of circulatory system is of

• a) Heart
• b) Arterioles
• c) Veins
• d) Capillaries

Answer: Capillaries

Question: During fever pyrogen are released by

• a) Virus
• b) Bacteria
• c) RBC
• d) WBC

Answer: Bacteria

Question: Heart beat is accelerated by

• a) Sympathetic nerves and acetylcholine
• b) Cranial nerves and adrenaline
• c) Cranial nerves and acetylcholine
• d) Sympathetic nerves and epinephrine

Answer: Sympathetic nerves and epinephrine

Question: hypertension is not caused by

• a) Anaemia
• b) Atherosclerosis
• c) Obesity
• d) Arteriosclerosis

Answer: Anaemia

Question: Blood passes from left ventricle to right atrium. It is

• a) Pulmonary circulation
• b) Systemic circulation
• c) Coronary circulation
• d) Arterovenous circulation

Answer: Systemic circulation

Question: Which of the following is correct internal structure of heart

• a) Bicuspid mitral valve separates left atrium from right ventricle
• b) Tricuspid mitral valve separates right atrium from right ventricle
• c) Bicuspid mitral valve separates left atrium from left ventricle
• d) Tricuspid mitral valve separates left atrium from left ventricle

Answer: Bicuspid mitral valve separates left atrium from left ventricle

Question: Which does not play any role in blood clotting according to Best and Taylor

• a) Fibrinogen
• b) Platelets
• c) Calcium
• d) Prothrombin

Answer: Platelets

Question: A child has blood group B. Mother has blood group A. The blood group of the father would be

• a) O
• b) O or A
• c) B or AB
• d) A

Answer: B or AB

Question: The other term for heart attack is

• a) Coronary thrombosis
• b) Myocardial infarction
• c) Ischaemia
• d) Cardiac arrest

Answer: Myocardial infarction

Question: Cold blooded animal with a single circulation is

• a) Mammal
• b) Amphibian
• c) Reptile
• d) Fish

Answer: Fish

Question: Vitamin required for the formation of prothrombin is

• a) K
• b) B₁₂ 
• c) E
• d) C

Answer: K

Question: Coronary heart disease is due to

• a) Weakening of heart valves
• b) Insufficient blood supply to heart muscles
• c) Streptococci bacteria
• d) Inflammation of pericardium

Answer: Insufficient blood supply to heart muscles

Question: Blood group were discovered by

• a) Harvey
• b) Landsteiner
• c) Miller
• d) Lull

Answer: Landsteiner

Question: Glucose 6-phosphate dehydrogenase deficiency is associated with haemolysis of

• a) Leucocytes
• b) Lymphocytes
• c) Platelets
• d) RBCs

Answer: RBCs

Question: Which pump oxygen-depleted blood

• a) Pulmonary arteries
• b) Right ventricle
• c) Right atrium
• d) Pulmonary veins

Answer: Right ventricle

Question: Open vascular system occurs in

• a) Fish
• b) Prawn/ Periplneta
• c) Snake
• d) Earthworm

Answer: Prawn/ Periplneta

Question: Blood vessel which brings oxygenated blood to left auricle is

• a) Precaval vein
• b) Postcaval vein
• c) Pulmonary vein
• d) Pulmonary artery

Answer: Pulmonary vein

Question: largest corpuscles of mammalian blood are

• a) Lymphocytes
• b) Basophils
• c) Erythrocytes
• d) Monocytes

Answer: Monocytes

Question: mature erythrocyte cannot utilise glucose because they lack

• a) Golgi complexes
• b) Mitochondria
• c) Enzymes
• d) Nucleus

Answer: Mitochondria

Question: Pulmonary artery carries

• a) pure blood from heart to lungs
• b) pure blood from heart to stomach
• c) impure blood from heart to lungs
• d) pure blood from lungs to heart

Answer: impure blood from heart to lungs

Question: More than one correct answer Blood corpuscles containing both A and B antigens are mixed with another blood serum. The blood corpuscles agglutinated. Blood serum belongs to blood group.

• a) A
• b) B
• c) AB
• d) O

Answer: O

Question: Number of major vessels pouring blood in right atrium is

• a) 1
• b) 2
• c) 3
• d) 4

Answer: 3

Question: Universal blood donor group is

• a) A
• b) B
• c) AB
• d) O

Answer: O

Question: Angina pectoris is a major symptom of

• a) Myocardial infarction
• b) Cyanosis
• c) High blood pressure
• d) Low blood pressure

Answer: Myocardial infarction

Question: Close circulatory system occurs in

• a) Cockroach
• b) Tadpole/ Fish
• c) Mosquito
• d) House fly

Answer: Tadpole/ Fish

Question: Ventricular diastole takes place due to activity of

• a) Tissue
• b) Organ
• c) Organ system
• d) Cell organelle

Answer: Tissue

Question:

Assertion: SA node produces excitatory impulses in heart

Reason: SA node is self-excitatory

• 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: The Assertion and Reason are true but Reason is not correct explanation of Assertion

Question: What cannot be the blood group of the parents of a baby having blood group A?

• a) O and O
• b) O and A
• c) A and O
• d) A and A

Answer: O and O