done 11th Biology Body Fluids and Circulation

• question_answer1)
  Name the components of the formed elements in the blood and mention one major function of each of them. 
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• question_answer2)
  What is the importance of plasma proteins? 
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• question_answer3)
  Match column I with column II. Column I Column II A. Eosinophils 1.Resist Infections B. RBC 2.Gas transport C. AB Group 3.Universal recipient D. Platelets 4.Coagulation E. Systole 5.Contraction of heart  
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• question_answer4)
  Why do we consider blood as a connective tissue? 
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• question_answer5)
  What is the differences between blood and lymph? 
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• question_answer6)
  What is meant by double circulation? What is its significance? 
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• question_answer7)
  Write the differences between (a) Blood and lymph (b) Open and closed system of circulation (c) Systole and diastole (d) P-wave and T-wave  
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• question_answer8)
  Describe the evolutionary change in the pattern of heart among the vertebrates. 
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• question_answer9)
  Why do we call our heart myogenic? 
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• question_answer10)
  Sino-atrial node is called the pacemaker of our heart. Why? 
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• question_answer11)
  What is the significance of atrio-ventricular node and atrio-ventricular bundle in the functioning of heart? 
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• question_answer12)
  Define a cardiac cycle and the cardiac output. 
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• question_answer13)
  Explain heart sounds. 
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• question_answer14)
  Draw a standard ECG and explain the different segments in it. 
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• question_answer15) Which of the following cells do not exhibit phagocytotic activity? (a) Monocytes                  (b) Neutrophil                   (c) Basophil                         (d) Macrophage

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• question_answer16)   One of the common symptoms observed in people infected with dengue fever is (a) significant decrease in RBCs count                     (b) significant decrease in WBC count (c) significant decrease in platelets count              (d) significant increase in platelets count

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• question_answer17)   Which among the followings is correct during each cardiac cycle? (a) The volume of blood pumped out by the Rt and Lt ventricles is same (b) The volume of blood pumped out by the Rt and Lt ventricles is different (c) The volume of blood received by each atrium is different (d) The volume of blood received by the aorta and pulmonary artery is different

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• question_answer18)   Cardiac activity could be moderated by the autonomous neural system. Tick the correct answer. (a) The parasympathetic system stimulates heart rate and stroke volume (b) The sympathetic system stimulates heart rate and stroke volume (c) The parasympathetic system decreases the heart rate but increase stroke volume (d) The sympathetic system decreases the heart rate but increase stroke volume

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• question_answer19)     Mark the pair of substances among the following which is essential for coagulation of blood. (a) heparin and calcium ions                                        (b) calcium ions and platelet factors (c) oxalates and citrates                                                (d) platelet factors and heparin

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• question_answer20)   ECG depicts the depolarisation and repolarisation processes during the cardiac cycle. In the ECG of a normal healthy individual one of the following waves is not represented. (a) Depolarisation of atria                                             (b) Repolarisation of atria (c) Depolarisation of ventricles                                  (d) Repolarisation of ventricles

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• question_answer21)   Which of the following type of cells lack nucleus in hormones? (a)RBC                           (b) Europhiles                           (c) Eosinophils                     (d) Erythrocytes

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• question_answer22)   Which one of the following blood cells is involved in antibody production. (a) B-lymphocytes          (b) T-lymphocytes            (c) RBC                                  (d) neutrophils

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• question_answer23) The cardiac impulse is initiated and conducted further up to ventricle. The correct sequence of conduction of impulse is

  (a)	SA Node	AV Node	Purkinje fiber	AV Bundle
  (b)	SA Node	Purkinje fiber	AV Node	AV Bundle
  (c)	SA Node	AV Node	AV Bundle	Purkinje fiber
  (d)	SA Node	Purkinje fiber	AV Bundle	AV Node

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• question_answer24)     Agranulocytes responsible for immune response of the body are (a) basophils                      (b) neutrophils                  (c) eosinophils                   (d) lymphocytes

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• question_answer25)   The second heart sound (dubb) is associated with the closure of (a)tricuspid valve             (b) semilunar valve         (c) bicuspid valve             (d) tricuspid and bicuspid valve

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• question_answer26)   Which of the following correctly explains a phase/event in cardiac cycle in a standard electrocardiogram? (a) QRS complex indicates atrial contraction. (b) QRS complex indicates ventricular contraction (c) Time between S and T represents atrial systole. (d) P-wave indicates beginning of ventricular contraction

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• question_answer27)   Which of the following statements is incorrect' (a)A person of ?O? blood group has anti ?A? and anti -B- antibodies in his blood  plasma. (b) A person of ?B' blood group can't donate blood to a person of ?A? blood group. (c)Blood group is designated on the basis of the presence of antibodies in the blood plasma. (d) A person of AB blood group is universal recipient.

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• question_answer28)   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) 3600 mL                         (c) 7200 mL                         (d) 5000 mL

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• question_answer29)   Match the following columns.

  Column I	Column II
  a. Lymphatic system	1.Carries oxygenated blood
  b. Pulmonary vein	2.Immune response
  c. Thrombocytes	3.To drain back the tissue fluid to the circulatory system
  d. Lymphocytes	4.Coagulation of blood

  Codes       A    B     C    D                    A   B    C    D (a) 2    1     3     4              (b) 3    1    4    2 (c) 3    1     3     4              (d) 2    1     3   4

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• question_answer30)   Read the following statements and choose the correct option. Statement I Atria receive blood from all parts of the body which subsequently flows to ventricles. Statement II Action potential generated at sino-atrial node passes from atria to ventricles. (a) Action mentioned is statement I is dependent on action mentioned in Statement II (b) Action mentioned in statement II is dependent on action mentioned in Statement I (c) Action mentioned in statement I and II are independent of each other. (d) Action mentioned in statement I and II are synchronous.

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• question_answer31)   Name the blood component which is viscous and straw coloured fluid.

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• question_answer32)   Complete the missing word in the statement given below (a) Plasma without......... factors is called serum. (b) ......... and monocytes are phagocyti'c cells. (c) Eosinophils are associated with ......... reactions. (d) ......... ions play a significant role in clotting. (e) One can determine the heart beat rate by counting the number of ......... in an ECG.

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• question_answer33)   Given below is the diagrammatic representation of a standard ECG. Label its different peaks.

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• question_answer34)     Name the vascular connection that exists between the digestive tract and liver.

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• question_answer35)   Given below are the abnormal conditions related to blood circulation. Name the disorders (a) Acute chest pain due to failure of 0^ supply to heart muscles (b) Increased systolic pressure

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• question_answer36)   Which coronary artery diseases is caused due to narrowing of the lumen of arteries?

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• question_answer37)   Define the following terms and give their location? (a) Purkinje fibre                (b) Bundle of His

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• question_answer38)   State the functions of the following in blood (a) fibrinogen                  (b) globulin                           (c) neutrophils                   (d) lymphocytes

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• question_answer39)   What physiological circumstances lead to erythroblast sis foetalis?

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• question_answer40)   Explain the consequences of a situation in which blood does not coagulate.

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• question_answer41)   What is the significance of time gap in the passage of action potential from sino-atrial node tothe ventricle?

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• question_answer42)   How will you interpret an electrocardiogram (ECG) in which time taken in QRS complex is higher?

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• question_answer43)   The walls of ventricles are much thicker than atria. Explain.

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• question_answer44)   Differentiate between (a) blood and lymph                       (b)Basophils and eosinophils                      (c)tricuspid and bicuspid valve  

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• question_answer45)   Briefly describe the followings (a) anaemia                        (b) angina pectoris          (c) atherosclerosis            (d) hypertension (e) heart failure               (f) erythroblastosis foetalis

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• question_answer46)   Explain the advantage of the complete partition of ventricle among birds and mammals and hence leading to double circulation.

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• question_answer47)     What is the significance of hepatic portal system in the circulatory system?

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• question_answer48)   Explain the functional significance of lymphatic system?

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• question_answer49)   Write the features that distinguish between the two (a) plasma and serum(b) open and closed circulatory system (c) sino-atrial node and atrio-ventricular node

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• question_answer50)   Thrombocytes are essential for coagulation of blood. Comment.

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• question_answer51)   Answer the following (a) name the major site where RBCs are formed. (b) which part of heart is responsible for initiating and maintaining its rhythmic activity? (c) what is specific in the heart of crocodiles among reptilians?

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• question_answer52)   Explain Rh-incompatibility in humans.

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• question_answer53)   Describe the events in cardiac cycle. Explain 'double circulation'.

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• question_answer54)   Explain different types of blood groups and donor compatibility by making a table.

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• question_answer55)   Write short note on the following. (a) Hypertension                  (b) Coronary Artery Disease

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• question_answer56)   In the diagrammatic presentation of heart given below, mark and label. SAN, AVN, AV bundles, bundle of his and Purkinje fibres.

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