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Body Fluids and Circulation Class 11 MCQs Questions with Answers
Question 1.
A respiratory pigment is absent in
(a) Earthworm
(b) Frog
(c) Rabbit
(d) Cockroach
Answer
Answer: (d) Cockroach
Question 2.
What would be the cardiac output of a person having 72 heart beats per minute and a stroke volume of 50 ml?
(a) 360 ml
(b) 7200 ml
(c) 5000 ml
(d) 3600 ml
Answer
Answer: (d) 3600 ml
Question 3.
Sickle cell anaemia is induced by:
(a) change of amino acid in a-chain of haemoglobin
(b) change of amino acid in b-chain of haemoglobin
(c) change of amino acid in both a- and b-chain of haemoglobin
(d) change of amino acid in either a- or b-chain of haemoglobin
Answer
Answer: (b) change of amino acid in b-chain of haemoglobin
Question 4.
Pace maker influences:
(a) Contraction of heart muscles
(b) Flow of blood in heat
(c) Rate of heart beat
(d) Formation of nerve impulse
Answer
Answer: (c) Rate of heart beat
Question 5.
Angina pectoris is very often mistaken for
(a) Chest pain
(b) Apnea
(c) Indigestion
(d) Severe headache
Answer
Answer: (c) Indigestion
Question 6.
In ECG, the depolarisation of atria is indicated by
(a) S-wave
(b) R-wave
(c) P-wave
(d) Q-wave
Answer
Answer: (c) P-wave
Question 7.
As the age advances, there is a gradual thinning of hair in human males. This is mainly because of lowered:
(a) blood supply
(b) synthesis of proteins
(c) synthesis of glycogen
(d) availability of energy
Answer
Answer: (b) synthesis of proteins
Question 8.
Blood of which vessel in mammals carries least percentage of urea
(a) Dorsal aorta
(b) Renal vein
(c) Renal artery
(d) Posterior vena cava
Answer
Answer: (b) Renal vein
Question 9.
The middle man of our body is:
(a) Kidney
(b) Lymph
(c) Heart
(d) Blood
Answer
Answer: (b) Lymph
Question 10.
First heart transplant was performed by:
(a) William Harvey
(b) Watson
(c) Christian Bernard
(d) Khorana
Answer
Answer: (c) Christian Bernard
Question 11.
In adult man, normal blood pressure is
(a) 100/80 mm Hg
(b) 80/120 mm Hg
(c) 100/120 mm Hg
(d) 120/80 mm Hg
Answer
Answer: (d) 120/80 mm Hg
Question 12.
The SA node is located in
(a) Upper lateral wall of the left atrium
(b) Lower lateral wall of the right atrium
(c) Lower lateral wall of the left atrium
(d) Upper lateral wall of the right atrium
Answer
Answer: (d) Upper lateral wall of the right atrium
Question 13.
Red cell count is carried out by
(a) Haemoglobinometer
(b) Haemocytometer
(c) Electrocardiogram
(d) Sphygmomanometer
Answer
Answer: (b) Haemocytometer
Question 14.
Pawan stood still for a long time and he felt swelling of feet. What would you suggest him :
(a) Ask for some medicine to cure his swelling of feet
(b) Drink a cup of tea
(c) Jerk or wriggle his legs to restart circulation
(d) Keep on standing and do some shoulder exercise
Answer
Answer: (c) Jerk or wriggle his legs to restart circulation
Question 15.
Which artery supplies blood to the diaphragm :-
(a) Phrenic
(b) Splenic
(c) Renal
(d) Caudal
Answer
Answer: (a) Phrenic
Question 16.
The layer of heart pericardium which checks its overstretching and overfilling as well as also protects heart from mechanical injury is :
(a) Serous pericardium
(b) Visceral pericardium
(c) Parietal pericardium
(d) Fibrous pericardium
Answer
Answer: (d) Fibrous pericardium
Question 17
The statement incorrect about human heart is
(a) It is derived from endoderm.
(b) It is myogenic.
(c) Wall of left ventricle is thickest.
(d) It is four chambered.
Answer
Answer: (a) It is derived from endoderm.
Question 18.
All arteries carry oxygenated blood except:
(a) Systemic
(b) Hepatic
(c) Pulmonary
(d) Cardiac
Answer
Answer: (c) Pulmonary
Question 19.
Artery is a blood vessel which carries blood
(a) Away from the heart
(b) Towards the heart
(c) Has deoxygenated blood without exception
(d) None of the above
Answer
Answer: (a) Away from the heart
Question 20.
Role of spleen in mammals is
(a) To control Blood pressure
(b) To assist liver
(c) To assist kidneys
(d) To act as haemopoitic tissue in embryo
Answer
Answer: (d) To act as haemopoitic tissue in embryo
Question 21.
The cardiovascular centre is located in
(a) Cerebellum
(b) Cerebrum
(c) Pons
(d) Medulla oblongata
Answer
Answer: (d) Medulla oblongata
Question 22.
Systolic pressure is higher than diastolic pressure due to:
(a) Volume of blood in the heart is greater during systole
(b) Arteries contract during systole
(c) Blood vessels offer resistance to flowing blood during systole
(d) Blood is forced into arteries during systole.
Answer
Answer: (d) Blood is forced into arteries during systole.
Question 23.
Which of the following statments is true for lymph?
(a) WBC and serum
(b) All components of blood except RBCs and some proteins
(c) RBCs, WBCs and plasma
(d) RBCs proteins and platelets
Answer
Answer: (b) All components of blood except RBCs and some proteins
Question 24.
Blood enters the heart because muscles of the
(a) Ventricles contract
(b) Ventricles relax
(c) Atria contract
(d) Atria relax
Answer
Answer: (d) Atria relax
Question 25.
A renal portal system is found in:
(a) Rabbit
(b) Mouse
(c) Horse
(d) Frog
Answer
Answer: (d) Frog
Question 26.
In the systemic circulation, blood vessel that carries blood from the intestine to liver is named
(a) Hepatic portal arch
(b) None of these
(c) Hepatic portal artery
(d) Hepatic portal vein
Answer
Answer: (d) Hepatic portal vein
Question 27.
The pre-hypertension blood pressure value is a measurement between :
(a) 120/80 and 139/89
(b) 139/89 and 140/90
(c) 120/80 and 140/90
(d) 100/70 and 120/80
Answer
Answer: (a) 120/80 and 139/89
Question 28.
Which one of the following statements about blood constituents and transport of respiratory gases is most accurate?
(a) RBCs transport oxygen whereas WBCs transport CO2
(b) RBCs transport oxygen whereas plasma transports only CO2
(c) RBCs as well as WBCs transport both oxygen and CO2
(d) RBCs as well as plasma transport both oxygen and CO2
Answer
Answer: (d) RBCs as well as plasma transport both oxygen and CO2
Question 29.
Father of Angiology is:
(a) William Harvey
(b) Batson
(c) Marsello Malpighi
(d) Landsteinar
Answer
Answer: (a) William Harvey
Question 30.
Antigens are present
(a) inside the nucleus
(b) on cell surface
(c) inside the cytoplasm
(d) on nuclear membrane
Answer
Answer: (b) on cell surface
Question 31.
The specialised patch of modified heart muscles from where contraction initiates, is/are :
(a) Pacesetter of heart
(b) Both SAN and AVN together
(c) Pacemaker of heart
(d) None of the Above
Answer
Answer: (c) Pacemaker of heart
Question 32.
Carotid artery carries the blood which is:
(a) Impure blood to kidneys
(b) Oxygenated blood to brain
(c) Oxygenated blood to heart
(d) Impure blood from brain
Answer
Answer: (b) Oxygenated blood to brain
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