Science — AI-generated practice question

The human excretory system consists of the following components:

1. A pair of kidneys – filter nitrogenous waste (urea) from the blood.
2. A pair of ureters – carry urine from the kidneys to the urinary bladder.
3. Urinary bladder – stores urine until it is released.
4. Urethra – passage through which urine is expelled from the body.

Source: Life Processes, Section 5.5.1

---

• The question is worth 2 marks, so simply naming all four components with a one-line function for each is sufficient — no detailed description needed.
• Examiners expect all four organs to be listed; missing even one can cost a mark.
• The textbook lists them in order: kidneys → ureters → urinary bladder → urethra. Following this order shows clarity.
• Avoid writing about nephrons here; the question asks for organs of the excretory system, not the internal structure of the kidney.