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.When two atria contract simultaneously and result in the blood pumping into ventricles, this is called
- a.Arterial diastole
- b.Ventricular systole
- c.Ventricular diastole
- d.Arterial systole
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2.If the blood pressure is measured as $\frac{130}{80}$ mm of Hg, the term 120 refers to
- A.Heartbeat rate
- B.Pulse rate
- C.Systolic pressure
- D.Diastolic pressure
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3.Which blood group is known as the universal donor?
- A.Blood group A
- B.Blood group B
- C.Blood group AB
- D.Blood group O
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4.Which characteristic distinguishes a vein from a capillary in the human circulatory system?
- A.Veins have valves to ensure one-way blood flow toward the heart, while capillaries lack valves and facilitate substance exchange.
- B.Veins are extremely narrow vessels connecting arteries to veins, while capillaries are thick-walled and return blood to the heart.
- C.Veins can dilate or constrict based on tissue needs, while capillaries are rigid and cannot change diameter.
- D.Veins carry only oxygenated blood, while capillaries carry deoxygenated blood and connect directly to the heart.
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5.Which of the following correctly describes the composition and primary functions of blood in the human circulatory system?
- A.Blood consists of red blood cells, white blood cells, plasma, and platelets; it transports nutrients, gases, wastes, and hormones while regulating temperature and immunity.
- B.Blood is composed of red blood cells and plasma only; its main function is to transport oxygen and remove carbon dioxide from tissues.
- C.Blood contains white blood cells and platelets suspended in lymph; it primarily aids in digestion and hormone production.
- D.Blood is made up of plasma and red blood cells; it functions solely to clot blood and protect against infections.
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