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MCQ on Body Fluids and Circulation Class 11. We covered all the MCQ on Body Fluids and Circulation Class 11 in this post for free so that you can practice well for the exam.
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MCQ on Body Fluids and Circulation for NEET Students
Which part of the human brain controls heart-related functions?
(A) Cerebrum
(B) Medulla
(C) Cerebellum
(D) Pons Varolii
Option b – Medulla
What is Angina pectoris?
(A) A heart condition where pumping efficiency is reduced
(B) Damage to the heart due to restricted blood supply
(C) Sudden chest pain due to inadequate oxygen supply to the heart muscle
(D) Another term for cardiac arrest
Option c – Sudden chest pain due to inadequate oxygen supply to the heart muscle
What role do B and T lymphocytes play?
(A) They help in immune defense mechanisms
(B) They convert prothrombin into thrombin
(C) They absorb lipids from intestinal villi
(D) They are responsible for forming clotting proteins
Option c – They absorb lipids from intestinal villi
What accurately describes pulmonary circulation?
(A) Begins with oxygen-rich blood pumped from the left ventricle into the aorta
(B) Begins with oxygen-poor blood pumped from the right ventricle into the pulmonary artery
(C) Begins with oxygen-rich blood pumped from the left ventricle into the pulmonary artery
(D) Begins with oxygen-poor blood pumped from the left ventricle into the aorta
Option b – Begins with oxygen-poor blood pumped from the right ventricle into the pulmonary artery
Which organ is often referred to as the ‘graveyard of red blood cells’?
(A) Spleen
(B) Red bone marrow
(C) Lymph node
(D) Yellow bone marrow
Option a – Spleen
Which white blood cells are involved in engulfing foreign particles?
(A) Basophils and red blood cells
(B) Neutrophils and platelets
(C) Platelets and monocytes
(D) Neutrophils and monocytes
Option d – Neutrophils and monocytes
On average, how much blood does the human heart pump in one hour?
(A) 100 liters
(B) 300 liters
(C) 1000 liters
(D) 3000 liters
Option b – 300 liters
What happens during ventricular systole?
(A) Tricuspid and bicuspid valves open
(B) Semilunar valves close
(C) All major valves open simultaneously
(D) Tricuspid and bicuspid valves shut
Option d – Tricuspid and bicuspid valves shut
The coronary circulation is specifically meant for transporting blood
(A) Between the liver and digestive tract
(B) To and from the heart muscles
(C) From the lungs to pulmonary veins
(D) From the lungs to pulmonary arteries
Option b – To and from the heart muscles
Identify the incorrect statement.
(A) Adrenaline can raise cardiac output
(B) The end of the T wave in ECG indicates systole ends
(C) The SA node is located in the right atrium’s upper part
(D) In reptiles, the left atrium receives deoxygenated blood while the right receives oxygenated blood
Option d – In reptiles, the left atrium receives deoxygenated blood while the right receives oxygenated blood
What is true about lymph?
(A) It circulates within the lymphatic system
(B) It transports nutrients, hormones, and gases
(C) It helps move fats from lacteals
(D) All of these
Option d – All of these
What effect do sympathetic neural signals have?
(A) Reduce heartbeat rate
(B) Strengthen the contraction of ventricles
(C) Lower cardiac output
(D) Slow down action potential conduction
Option b – Strengthen the contraction of ventricles
Read the statements and pick the correct answer.
Statement I: The heart originates from the mesoderm.
Statement II: It is enclosed by a double-layered membrane known as the pericardium.
(A) Only Statement I is true
(B) Only Statement II is true
(C) Both statements are true
(D) Both statements are false
Option c – Both statements are true
Which of the following is NOT correct?
(A) People with blood group O have A and B antibodies in plasma
(B) AB blood group individuals can receive blood from all groups
(C) ABO grouping is based on antibodies in the plasma
(D) Blood group O individuals lack surface antigens
Option c – ABO grouping is based on antibodies in the plasma
Assertion: Red blood cells are red in color.
Reason: They contain the iron-rich protein albumin.
(A) Both the assertion and the reason are true, and the reason explains the assertion
(B) Both the assertion and the reason are true, but the reason does not explain the assertion
(C) Assertion is correct, but the reason is incorrect
(D) Both the assertion and the reason are incorrect
Option c – Assertion is correct, but the reason is incorrect
What happens during joint diastole?
(A) Both ventricles and atria contract
(B) Both ventricles and atria relax
(C) Atria contract while ventricles relax
(D) Ventricles contract while atria relax
Option b – Both ventricles and atria relax
Which organisms exhibit an open circulatory system?
(A) Molluscs
(B) Annelids
(C) Chordates
(D) Both (B) and (C)
Option a – Molluscs
Which blood vessels return blood back to the heart?
(A) Capillaries
(B) Arteries
(C) Veins
(D) All of these
Option c – Veins
What function do globulins serve in blood?
(A) Aid in blood clotting
(B) Help transport oxygen
(C) Maintain fluid balance
(D) Support immune defense
Option d – Support immune defense
What is the duration of one complete human cardiac cycle?
(A) 0.2 seconds
(B) 0.8 seconds
(C) 1 minute
(D) 2 minutes
Option b – 0.8 seconds
Choose the correct statement about plasma.
(A) It makes up about 10% of total blood volume
(B) Plasma mainly contains albumin, globulin, and fibrinogen
(C) Clotting elements are not found in plasma
(D) Plasma contains 55% proteins
Option b – Plasma mainly contains albumin, globulin, and fibrinogen
We covered all the MCQ on body fluids and circulation class 11 above in this post for free so that you can practice well for the exam.
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