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.What is the primary purpose of tubular secretion in the nephron?
- A.To reabsorb glucose and amino acids back into the blood
- B.To filter blood plasma in the glomerulus
- C.To eliminate harmful substances not filtered at the glomerulus
- D.To store urine in the urinary bladder
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2.Which process describes the filtration of blood in the glomerulus where small molecules like urea and glucose enter the renal tubule while large molecules remain in the glomerulus?
- A.Osmosis
- B.Ultrafiltration
- C.Active transport
- D.Diffusion
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3.Which of the following correctly explains the terms ultrafiltration and selective absorption in the context of the human excretory system?
- A.Ultrafiltration is the filtering of blood under high pressure in the glomerulus, allowing small molecules to pass into Bowman's capsule, while selective absorption is the reabsorption of useful substances like glucose and water back into the blood from the filtrate.
- B.Ultrafiltration is the absorption of waste products like urea into the nephron, while selective absorption is the filtering of blood to retain only large molecules like proteins in the glomerulus.
- C.Ultrafiltration occurs in the proximal convoluted tubule, where blood is filtered under low pressure, and selective absorption happens in the glomerulus to retain all nutrients.
- D.Ultrafiltration is the process of excreting urine from the bladder, while selective absorption is the reabsorption of all molecules, including waste, back into the bloodstream.
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4.Which pair correctly distinguishes excretion from egestion?
- A.Excretion removes undigested food; egestion removes toxic wastes
- B.Excretion removes toxic wastes; egestion removes undigested food
- C.Both remove toxic wastes from the body
- D.Both remove undigested food from the body
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5.To which structure do the following parts belong: loop of Henle, glomerulus, proximal convoluted tubule?
- A.Alveolus
- B.Nephron
- C.Neuron
- D.Villus
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