MCQ Questions for Class 11 Biology Chapter 18 Body Fluids and Circulation with Answers

Body Fluids and Circulation Class 11 Biology MCQs Questions with Answers

Check the below NCERT MCQ Questions for Class 11 Biology Chapter 18 Body Fluids and Circulation with Answers Pdf free download. MCQ Questions for Class 11 Biology with Answers were prepared based on the latest exam pattern. We have Provided Body Fluids and Circulation Class 11 Biology MCQs Questions with Answers to help students understand the concept very well.

Class 11 Biology Chapter 18 Quiz

Class 11 Biology Chapter 18 MCQ Online Test

You can refer to NCERT Solutions for Class 11 Biology Chapter 18 Body Fluids and Circulation to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Body Fluids and Circulation Class 11 Biology MCQ online test

Q1.	In developing embryo RBCs are formed in
	A.Lymph node
	B.Bone marrow
	C.Liver
	D.Spleen

Ans: Liver

Q2.	In humans, blood passes from the post caval to the diastolic right atrium of heart due to:
	A.Pressure difference between the post caval and atrium
	B.Pushing open of the venous valves
	C.Suction pull
	D.Stimulation of the sino auricular node

Ans: Pressure difference between the post caval and atrium

Q3.	When body tissues are injured resulting in the loss of blood, the process of blood clot begins and the blood platelets release
	A.Fibrinogen
	B.Thrombin
	C.Prothrombin
	D.Thromboplastin

Ans: Thromboplastin

Q4.	An adult human has systolic and diastolic pressures as:
	A.80 mm Hg and 120 mm Hg
	B.120 mm Hg and 80 mm Hg
	C.50 mm Hg and 80 mm Hg
	D.80 mm Hg and 80 mm Hg

Ans: 120 mm Hg and 80 mm Hg

Q5.	Duration of cardiac cycle is
	A.0.7 sec
	B.0.9 sec
	C.0.8 sec
	D.0.11 sec

Ans: 0.8 sec
Explanation:
Duration of cardiac cycle is 0.8 seconds.

Q6.	In the above picture Q represents
	A.exitation of the atria
	B.depolarisation of ventricles
	C.begining of systole
	D.repolarisation

Ans: begining of systole
Explanation:
MCQ Questions for Class 11 Biology Chapter 18 Body Fluids and Circulation with Answers 2

Q7.	Oxygenated blood occurs in
	A.Pulmonary artery
	B.Right atrium
	C.Right ventricle
	D.Pulmonary vein

Ans: Pulmonary vein

Q8.	The cells lining the blood vessels belong to the category of
	A.Columnar epithelium
	B.Connective tissue
	C.Smooth muscle tissue
	D.Squamous epithelium

Ans: Squamous epithelium

Q9.	Heart failure occurs due to
	A.heart stops beating
	B.damage of heart muscles
	C.congestion of lungs
	D.all of the above

Ans: congestion of lungs
Explanation:
Heart failure occurs when heart stops pumping blood effectively enough to meet the body needs.
It occurs mainly due to congestion of lungs.

Q10.	Artificial pace maker is transplanted in
	A.Inter auricular septum
	B.Below the collar bone
	C.Inter ventricular septum
	D.Right auricle

Ans: Below the collar bone

Q11.	Which of the following statement/statements can be related to erythroblastosis foetalis?
	A.Severe anemia and jaundice to the baby.
	B.Can be avoided by giving anti-Rh antibodies to mother immediately after delivery of the first child.
	C.Rh-antibodies from the Rh -ve mother destroys foetal RBCs.
	D.All of the above

Ans: All of the above
Explanation:
Erythroblastosis foetalis occurs if Rh-antibodies from the Rh -ve mother destroys foetal RBCs of Rh +ve foetus.

Q12.	Among the following stem cells, which are found in the umbilical cord?
	A.Cord blood stem cells
	B.Adult stem cells
	C.Embryonic stem cells
	D.All of the above

Ans: Cord blood stem cells

Q13.	If vagus nerve is cut the heart beat
	A.increases
	B.decreases
	C.will not be affected
	D.will stop immediately

Ans: increases

Q14.	If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?
	A.The flow of blood into the pulmonary artery will be reduced
	B.The flow of blood into the aorta will be slowed down
	C.The pacemaker will stop working
	D.The blood will tend to flow back into the left atrium

Ans: The flow of blood into the pulmonary artery will be reduced

Q15.	Heparin is
	A.Anti-allergic
	B.Blood diluter
	C.Anticoagulant
	D.Antiseptic

Ans: Anticoagulant

Q16.	An adult human has systolic and diastolic pressures as:
	A.80 mm Hg and 120 mm Hg
	B.120 mm Hg and 80 mm Hg
	C.50 mm Hg and 80 mm Hg
	D.80 mm Hg and 80 mm Hg

Ans: 120 mm Hg and 80 mm Hg

Q17.	Cardiac arrest is the state when
	A.heart stops beating
	B.inadequate blood supply to the heart
	C.heart not pumping enough to meet the body needs
	D.blood pressure increases

Ans: heart stops beating
Explanation:
Cardiac arrest occurs when the heart stops beating.

Q18.	What is the normal blood pressure of human beings?
	A.110/70
	B.120/70
	C.120/80
	D.110/80

Ans: 120/80
Explanation:
120/80 is the normal measurement to blood pressure.
120 mm Hg is the systolic or pumping pressure.
80 mm Hg is the diastolic or resting pressure.

Q19.	Arteries are best defined as the vessels which
	A.Carry blood from one visceral organ to another visceral organ
	B.Supply oxygenated blood to the different organs
	C.Carry blood away from the heart to different organs
	D.Break up into capillaries which reunite to form a vein