Biological termModerate0.5 marks
4(b)
Give the Biological / technical term for the following:
The removal of nitrogenous wastes from the body.
Topic: Excretion
Previous-year question practice database
Answer
Exam answer
EXCRETION.
Explanation
The words NITROGENOUS WASTES are the clue: excretion removes the products of the body’s own METABOLISM — urea, uric acid and ammonia, with excess water and salts.
THE DISTINCTION EXAMINERS TEST: excretion is NOT the same as EGESTION. FAECES are undigested food that never entered the body’s cells and took no part in metabolism, so removing them is egestion, not excretion.
The excretory organs: KIDNEYS (urea, water, salts), LUNGS (carbon dioxide), SKIN (sweat), LIVER (bile pigments).
More from The Excretory System
A person suffering from kidney failure has proteins in the urine. What is this condition called?2026Urochrome, Urea, Uric acid, Nucleic acid2026Match each structure of the kidney shown in the diagram with its function:
Renal Medulla, Renal Cortex, Renal Artery, Renal Vein, Pelvis, Ureter
(a) Has Malpighian capsules
(b) Carries oxygenated blood
(c) Transports urine to the urinary bladder
(d) Has Henle’s loops
(e) Carries deoxygenated blood
(f) Receives urine which flows into the ureter2026Name the structure that regulates the flow of urine from the urinary bladder into the urethra.2026What is Micturition? Explain.2025Differentiate between the functions of Urethra and Uterus.2025