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Chapter: 11th Zoology : Chapter 7 : Body Fluids and Circulation

Choose the Correct Answers

Zoology : Body Fluids and Circulation : Evaluation, Multiple choice questions with answers / choose the correct answer with answers, Book back 1 mark questions and answers


Body Fluids and Circulation


Choose the Correct Answers


1. What is the function of lymph?

a. Transport of O2 into brain

b. Transport of CO2 into lungs

c. Bring interstitial fluid in blood

d. Bring RBC and WBC in lymph node


2. Which one of the following plasma proteins is involved in the coagulation of blood?

a. Globulin

b. Fibrinogen

c. Albumin

d. Serum amylase 


3. Which of the following is not involved in blood clotting?

a. Fibrin

b. Calcium

c. Platelets

d. Bilirubin


5. Lymph is colourless because

a. WBC are absent

b. WBC are present

c. Heamoglobin is absent

d. RBC are absent


5. Blood group is due to the presence or absence of surface

a. Antigens on the surface of WBC

b. Antibodies on the surface of RBC

c. Antigens of the surface of RBC

d. Antibodies on the surface of WBC


6. A person having both antigen A and antigen B on the surface of RBCs belongs to blood group

a. A

b. B

c. AB

d. O


7. Erythroblastosis foetalis is due to the destruction of

a. Foetal RBCs

b. Foetus suffers from atherosclerosis

c. Foetal WBCs

d. Foetus suffers from mianmata


8. Dub sound of heart is caused by

a. Closure of atrio-ventricular valves

b. Opening of semi-lunar valves

c. Closure of semi-lunar values

d. Opening of atrio-ventricular valves.


9. Why is the velocity of blood flow the lowest in the capillaries?

a. The systemic capillaries are supplied by the left ventricle, which has a lower cardiac output than the right ventricle.

b. Capillaries are far from the heart, and blood flow slows as distance from the heart increases.

c. The total surface area of the capillaries is larger than the total surface area of the arterioles.

d. The capillary walls are not thin enough to allow oxygen to exchange with the cells.

e. The diastolic blood pressure is too low to deliver blood to the capillaries at a high flow rate.


10. An unconscious patient is rushed into the emergency room and needs a fast blood transfusion. Because there is no time to check her medical history or determine her blood type, which type of blood should you as her doctor, give her?

a. A-

b. AB

c. O+

d. O-


11. Which of these functions could or could not be carried out by a red blood cell? Briefly justify your answer.

a. Protein synthesis

b. Cell division

c. Lipid synthesis

d. Active transport


12. At the venous end of the capillary bed, the osmotic pressure is

a. Greater than the hydrostatic pressure

b. Result in net outflow of fluids

c. Results in net absorption of fluids

d. No change occurs.


13. A patient’s chart reveals that he has a cardiac output of 7500mL per minute and a stroke volume of 50 mL. What is his pulse rate (in beats / min)

a. 50

b. 100

c. 150

d. 400


14. At any given time there is more blood in the venous system than that of the arterial system. Which of the following features of the veins allows this?

a. relative lack of smooth muscles

b. presence of valves

c. proximity of the veins to lymphatic’s

d. thin endothelial lining

Q. Which of the following WBCs are found in more numbers?

a. Eosinophil

b. Neutrophil

c. Basophil

d. Monocyte


24. Select the correct biological term.

Lymphocytes, red cells, leucocytes, plasma, erythrocytes, white cells, haemoglobin, phagocyte, platelets, blood clot.

a. Disc shaped cells which are concave on both sides - erythrocytes

b. Most of these have a large, bilobed nucleus - Lymphocytes

c. Enable red cells to transport blood

d. The liquid part of the blood - plasma

e. Most of them move and change shape like an amoeba. - phagocyte

f. Consists of water and important dissolved substances. - plasma

g. Destroyed in the liver and spleen after circulating in the blood for four months. - erythrocytes

h. The substances which gives red cells their colour. - haemoglobin

i. Another name for red blood cells. - erythrocytes

j. Blood that has been changed to a jelly. - blood clot

k. A word that means cell eater. - phagocyte

l. Cells without nucleus. - erythrocytes /phagocyte

m. White cells made in the lymphatic tissue. - Lymphocytes

n. Blocks wound and prevent excessive bleeding. - blood clot

o. Fragment of cells which are made in the bone marrow. - red cells

p. Another name for white blood cells. - leucocytes

q. Slowly releases oxygen to blood cells. - haemoglobin

r. Their function is to help blood clot in wounds. - platelets


25. Select the correct biological term.

Cardiac muscle, atria, tricuspid systole, auricles, arteries, diastole, ventricles, bicuspid valve, pulmonary artery, cardiac cycle, semi lunar valve, veins, pulmonary vein, capillaries, vena cava, aorta.

a. The main artery of the blood. - aorta

b. Valves between the left atrium and ventricle. - bicuspid valve

c. Technical name for relaxation of the heart. - diastole

d. Another name for atria. - auricles

e. The main vein. - vena cava

f. Vessels which carry blood away from the heart. - arteries

g. Two names for the upper chambers of the heart. – atria/ auricles

h. Thick walled chambers of the heart. - ventricles

i. Carries blood from the heart to the lungs. - pulmonary artery

j. Takes about 0.8 sec to complete. - cardiac cycle

k. Valves situated at the point where blood flows out of the heart. - semi lunar valve

l. Vessels which carry blood towards the heart. - veins

m. Carries blood from the lungs to the heart. - pulmonary vein

n. The two lower chambers of the heart. - ventricles

o. Prevent blood from re entering the ventricles after entering the aorta. . - semi lunar valve

p. Technical name for one heart beat. - Cardiac muscle

q. Valves between right atrium and ventricles. - tricuspid systole

r. Technical name for contraction of the heart. - Systole

s. Very narrow blood vessels. - Capillaries

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