ICSE Class 10 The Circulatory System — Mock Test (2027)
Free online mock test for The Circulatory System (ICSE Class 10 Biology) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the The Circulatory System chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.What determines the Rh-factor in human blood?
- A.Presence of antibodies in the plasma.
- B.Presence of Rh antigens on the surface of RBCs.
- C.Color of the red blood cells.
- D.Number of white blood cells present.
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2.What is plasma, and which of the following is NOT a function of plasma?
- A.A colourless fluid in which blood cells float; production of red blood cells.
- B.A liquid component of blood; transport of digested food and metabolic wastes.
- C.The fluid part of blood; distribution of body heat and maintenance of water balance.
- D.A straw-coloured liquid; transport of hormones and oxygen.
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3.Which of the following correctly describes the role of platelets in the process of blood clotting?
- A.Platelets release chemicals that activate clotting factors, leading to fibrin mesh formation.
- B.Platelets directly convert fibrinogen into fibrin without any intermediate steps.
- C.Platelets prevent the conversion of prothrombin to thrombin to avoid clotting.
- D.Platelets dissolve blood clots by breaking down the fibrin mesh.
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4.The wall of the heart is made up of _______.
- A.Striated muscle
- B.Involuntary muscle
- C.Cardiac muscle
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5.Which phase of the cardiac cycle is described as diastole?
- A.The contraction phase of the heart muscle.
- B.The phase when the heart stops beating momentarily.
- C.The relaxation phase of the heart.
- D.The phase when blood is pumped out of the heart.
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