Disorders & Other Excretory Organs — NEET Biology MCQs with Solutions
Free NEET Biology Disorders & Other Excretory Organs MCQs with step-by-step solutions (6 questions). Part of Excretory Products and Their Elimination. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Disorders & Other Excretory Organs · easy · theory
The artificial process used to remove nitrogenous wastes from the blood of kidney-failure patients is:
A. Filtration by liver
B. Transfusion
C. Transpiration
D. Haemodialysis ✓ Correct
Solution: Haemodialysis uses an artificial kidney to filter urea/wastes from the blood when kidneys fail.
Q2 — Disorders & Other Excretory Organs · easy · theory
The accumulation of urea in the blood due to kidney malfunction is called:
A. Anaemia
B. Glycosuria
C. Uremia ✓ Correct
D. Diabetes
Solution: Uremia is a high blood urea level from kidney failure; it can be treated by dialysis.
Q3 — Disorders & Other Excretory Organs · medium · theory
The sweat and sebaceous glands of the skin assist in excretion by removing:
A. Only carbon dioxide
B. Small amounts of salts, urea, lactic acid (and sebum) ✓ Correct
C. Blood cells
D. Only glucose
Solution: Sweat glands excrete water, salts and small amounts of urea/lactate; sebaceous glands remove sterols and waxes.
Q4 — Disorders & Other Excretory Organs · medium · theory
In humans, the lungs act as accessory excretory organs by removing:
A. Bile pigments
B. Urea
C. CO₂ and some water vapour ✓ Correct
D. Uric acid
Solution: The lungs excrete large amounts of CO₂ and some water vapour with each breath.
Q5 — Disorders & Other Excretory Organs · hard · theory
Kidney stones (renal calculi) are:
A. Insoluble crystallised masses (e.g. of oxalates) formed in the kidney ✓ Correct
B. Clots of blood cells
C. Excess plasma proteins
D. Deposits of glucose
Solution: Renal calculi are hard crystalline stones (often calcium oxalate) that can obstruct the urinary tract.
Q6 — Disorders & Other Excretory Organs · hard · theory
Kidney transplantation is the ultimate treatment for acute renal failure; the donor kidney is ideally taken from:
A. A close relative to minimise immune rejection ✓ Correct
B. Any unrelated person
C. The patient's own failed kidney
D. An animal
Solution: A genetically close (matched) donor reduces the risk of immune rejection in transplantation.