ICSE Class 10 The Excretory System — Mock Test (2027)
Free online mock test for The Excretory 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 Excretory 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.‘Aquatic animals excrete ammonia’. Which one of the following statements does not support this statement?
- a.Ammonia is released from the body in gaseous state
- b.Ammonia is easily soluble in water
- c.Ammonia is highly toxic and needs to be eliminated when formed
- d.Ammonia gets converted into less toxic form called urea and uric acid
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2.Given below is a list of substances. Which of the following groups consists ONLY of substances that need to be got rid off from the body?
- A.Glucose, amino acids, urea, carbon dioxide
- B.Urea, carbon dioxide, excess water, excess common salt, uric acid
- C.Amino acids, glycogen, excess water, uric acid
- D.Excess common salt, glucose, urea, carbon dioxide
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3.What is a uriniferous tubule and how does it function?
- A.A blood vessel in the kidney that filters waste directly into the bladder.
- B.The functional unit of the kidney, consisting of a nephron and collecting duct, which filters blood, reabsorbs useful substances, and secretes waste to form urine.
- C.A tube that transports urine from the kidney to the bladder without any filtration.
- D.A part of the liver responsible for detoxifying blood and producing urea.
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4.Maximum amount of water from the glomerular filtrate is reabsorbed in
- A.proximal convoluted tubule
- B.descending limbs of loop of Henle.
- C.ascending limb of loop of Henle.
- D.distal convoluted tubule.
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5.What is the process by which kidneys regulate the water content of the body called?
- A.Filtration
- B.Osmoregulation
- C.Excretion
- D.Reabsorption
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