NCERT Class 11 Chapter 18 Biology Body Fluids and Circulation MCQ

NCERT Class 11 Chapter 18 Biology Body Fluids and Circulation MCQ | Questions & Answers: With the help of this article, you can take part in the NCERT Class 11 Chapter 18 Biology Body Fluids and Circulation MCQ Quiz. As a result, you can know how much expertise you have in the particular field.

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1. Blood pressure is measured by

A. sphygmomanometer

B. electrocardiogram

C. stethoscope

D. None of these

2. Coronary artery disease (CAD) is often referred to as

A. Atherosclerosis

B. Heart failure

C. Cardiac arrest

D. None of these

3. Which one of the following is a correct matching pair?

A. Lubb - Sharp closure of AV valves at the beginning of ventricular systole

B. Dup - Sudden opening of semilunar valves at the beginning of ventricular diastole.

C. Pulsation of the radial artery valves in the blood vessels

D. Purkinje fibers - Initiation of the heart beat

4. Heart is covered by

A. Pericardium

B. Pleural membrane

C. Visceral membrane

D. None of these

5. Pacemaker of heart is

A. SA node

B. AV node

C. Bundle of His

D. Purkinje fibres

6. Uricotelism is found in

A. Fishes and freshwater protozoans

B. Birds, reptiles and insects

C. Mammals and birds

D. Frogs and toads

7. Haemoglobin is having maximum affinity with

A. CO

B. O²

C. NH³

D. None of these

8. An adult human with average health has systolic and diastolic pressures as

A. 120 mm Hg and 80 mm Hg

B. 50 mm Hg and 80 mm Hg

C. 70 mm Hg and 120 mm Hg

D. 80mm Hg and 80 mm Hg

9. Blood group AB has

A. no antibody

B. no antigen

C. neither antigen nor antibody

D. both antigen and antibody

10. With reference to the blood in a normal person, which one of the following statements is correct?

A. The blood has more platelets than WBC.

B. White blood cells (WBC) are made by lymph nodes only

C. Blood cells constitute about 70 percent of the total volume of the blood

D. Compared to arteries, veins are less numerous and hold less of the body’s blood at any given time.

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11. Thickening of arteries due to cholesterol deposition is

A. arteriosclerosis

B. blood pressure

C. rheumatic heart

D. cardiac arrest

12. Hepatic portal system carries

A. Deoxygenated blood from intestine to live

B. Oxygenated blood from liver to intestine

C. Oxygenated blood from intestine to liver

D. Deoxygenated blood from liver to intestine

13. Chordae tendinae are found in

A. ventricles of heart

B. atria of heart

C. joints of legs

D. ventricles of brain

14. The pattern of contraction and relaxation of the heart is referred to as

A. cardiac cycle

B. arterial flow

C. blood pressure

D. blood flow

15. The affinity of CO with Hb is more than oxygen by

A. 2000 times

B. 20 times

C. Both

D. None of these

16. Life span of human RBCs is

A. 120 days

B. 9 days

C. 20 days

D. 90 days

17. Erythroblastosis foetalis occurs when

A. Mother is Rh-negative and father is Rh positive

B. Father is Rh-negative and mother is Rh positive

C. Both are Rh-positive

18. Which of the following set of animals has an incomplete double circulation system?

A. Toad and lizard

B. Shark and whale

C. Frog and crocodile

D. Lizard and pigeon

19. Which of the following factors is known as Christmas factor?

A. Factor IX

B. Factor XII

C. Factor VIII

D. Factor IV

20. In veins, values are present to check backward flow to blood flowing at

A. low pressure

B. high pressure

C. atmospheric pressure

D. None of these

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21. Arteries carry oxygenated blood except

A. pulmonary

B. cardiac

C. hepatic

D. systemic

22. Tricuspid valve is found in between

A. sinus venosus and right auricle

B. right auricle and right ventricle

C. left ventricle and left auricle

D. ventricle and aorta

23. Splenic artery arises from

A. anterior mesenteric artery

B. coeliac artery

C. posterior mesenteric artery

D. intestinal artery

24. A vein possesses a large lumen because

A. tunica media and tunica externa form 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

25. Carbonic anhydrase occurs in

A. lymphocytes

B. blood plasma

C. RBC

D. leucocytes