CBSE Class 11 Biology Body Fluids and Circulation MCQs Set C

Question: Rh factor is concerned with blood grouping. It derives its name from
a) Man
b) Chimpanzee
c) Monkey
d) Rat
Answer: c

Question: During blood clotting, platelets release
a) Thrombin
b) Fibrinogen
c) Prothrombin
d) Thrombokinase and other blood clotting factor
Answer: d

Question: In case of emergency, which blood group could be safely transfused?
a) AB Rh-
b) AB Rh+
c) O Rh-
d) O Rh+
Answer: c

Question: Life span of human RBC is
a) 120 hours
b) 120 months
c) 120 days
d) 102 days
Answer: c

Question: A doctor suggested a couple to not have more than one child because of
a) Rh+ male and Rh- female
b) Rh- male and Rh+ female
c) Rh- male and Rh- female
d) Rh+ male and Rh+ female
Answer: a

Question: Closed circulatory system is found in
a) Arthropods and chordates
b) Molluscs and arthropods
c) Annelids and arthropods
d) Annelids and chordates
Answer: d

Question: All of the following are granulocytes except
a) Neutrophils
b) Eosinophils
c) Basophils
d) Lymphocytes and monocytes
Answer: d

Question: Which of the following is a cell fragment?
a) Leucocytes
b) RBCs
c) Blood platelets
d) None
Answer: c

Question: Mammalian RBC is _____ in shape.
a) Oval
b) Biconvex
c) Biconcave
d) Sickle-like
Answer: c

Question: Advantages of closed circulatory system over open circulatory system include which of the following?
a) Closed system can direct blood to specific tissues
b) Exchange occurs more rapidly
c) Closed circulatory system can support higher level of metabolic activity
d) All
Answer: d

Question: Blood clotting pathways cause
a) Conversion of vitamin K to prothrombin
b) Conversion of fibrin to fibrinogen
c) Conversion of thrombin to prothrombin
d) None of the options
Answer: d

Question: Which of the following statements are correct?
a) Rh compatibility must be tested before pregnancy and transfusion
b) Rh antibodies can cross placenta
c) At the time of 1st delivery, Rh+ RBCs from baby mix with mother's blood
d) All
Answer: d

Question: Plasma is a straw-coloured, viscous fluid consisting _____ % of blood.
a) 55
b) 45
c) 90
d) 10
Answer: a

Question: Which of the following use water from their environment as circulating fluid?
a) Sponges
b) Coelenterates
c) Sponges and Coelenterates
d) Fishes
Answer: c

Question: In developing foetus, erythroblastosis foetalis is caused by
a) Haemolysis
b) Clumping of RBCs
c) Failure of blood clotting
d) Phagocytosis of WBC
Answer: b

Question: Which of the following statement is correct about clotting and coagulation?
a) Ca²⁺ is necessary for blood coagulation
b) Heparin prevents clotting in blood vessels
c) Fibrinogen converts to fibrin via thrombin
d) All are correct
Answer: c

Question: A. Proteins contribute 6-8% of the blood plasma
B. Plasma contains very thin amount of minerals
C. Plasma without the clotting factors is called serum
D. Glucose, amino acid, lipids etc. are present in plasma as they are in transit
a) All are correct
b) Only B is correct
c) Only A is correct
d) All are false
Answer: a

Question: Formed elements of blood include
a) RBC, WBC and blood platelets
b) Proteins present in blood
c) All solutes present in blood
d) All minerals
Answer: a

Question: Match the following

   Column – I                 Column – II
A. P wave                  I. Ventricular depolarisation folllowed by ventricular contraction
B. QRS complex       II. Atrial depolarisation followed by systole of both atria
C. T – wave              III. Ventricular repolarisation followed by ventricular relaxation
Options :
(a) A – I, B – II, C – III
(b) A – III, B – II, C – I
(c) A – II, B – I, C – III
(d) A – II, B – III, C – I
Answer: c

Question:Match the following

    Column – I               Column – II
A. Basophils              I. Phagocytes
B. Neutrophils           II. Secrete histamine, serotonin, heparin and involved in inflammatory response
C. Monocytes           III. Resist infections and are also involved in allergic reaction
D. Eosinophils           IV. Immunity
E. Lymphocytes
Options :
(a) A – II, B AND C – I, D – III, E – IV
(b) A – III, B AND C – III, D – I, E – IV
(c) A – III, B AND C – I, D – II, E – IV
(d) A – IV, B AND C – III, D – I, E – II
Answer: a