Introduction
Good afternoon, students!
Today, we’re diving into biology past questions from UTME (Unified Tertiary Matriculation Examination) spanning 1978 to 2024. Our focus will be on three essential topics in biology: Reproduction, Respiration, and Nutrition — core characteristics of living organisms. These areas are frequently tested in JAMB and WAEC exams, making them critical for students to master.
Grab your writing materials as we tackle these questions one by one with explanations.
You can watch the full class in the video below:
Question 1: Excretory Structure in Earthworm
Question:
The excretory structure in an earthworm is the ______.
Options:
- A) Malpighian tubule
- B) Flame cell
- C) Nephridium
- D) Kidney
Explanation
- Malpighian tubule: Found in insects, not earthworms.
- Flame cell: Found in flatworms (Platyhelminthes).
- Kidney: Found in mammals, not earthworms.
- Nephridium: The correct excretory organ in earthworms.
Answer: C) Nephridium
Question 2: Non-Excretory Product
Question:
Which of the following is not an excretory product?
Options:
- A) Urine
- B) Sweat
- C) Faeces
- D) Salt
Explanation
- Urine and sweat are true excretory products (removal of metabolic waste).
- Faeces is a product of digestion, not excretion.
- Salt is part of sweat and urine.
Answer: C) Faeces
Question 3: Organ Closely Associated with Urine Production
Question:
Which of the following parts of the mammalian body is most closely associated with the production of urine?
Options:
- A) Malpighian corpuscle
- B) Urinary bladder
- C) Urethra
- D) Vas deferens
Explanation
- Urinary bladder stores urine, but does not produce it.
- Urethra transports urine out of the body.
- Vas deferens is part of the male reproductive system.
- Malpighian corpuscle (renal corpuscle) is involved in filtering blood in the kidney to form urine.
Answer: A) Malpighian corpuscle
Question 4: Location of Malpighian Tubules
Question:
In which group of animals are Malpighian tubules found?
Options:
- A) Lizard, snail, and frog
- B) Cricket, housefly, and grasshopper
- C) Millipede, centipede, and scorpion
- D) Earthworm, roundworm, and flatworm
Explanation
Malpighian tubules are excretory structures found in insects, such as crickets, houseflies, and grasshoppers.
Answer: B) Cricket, housefly, and grasshopper
Question 5: Waste Product of Insects
Question:
Which of the following is a waste product of insects?
Options:
- A) Uric acid
- B) Ammonia
- C) Urea
- D) Carbon dioxide
Explanation
Insects excrete uric acid as a nitrogenous waste. It conserves water, an adaptation for their terrestrial life.
Answer: A) Uric acid
Watch more educational videos and past questions: https://youtube.com/@allcbts
Conclusion
Understanding excretion, reproduction, and nutrition in organisms is essential for excelling in UTME Biology. These concepts frequently appear in JAMB, WAEC, and NECO examinations. By practicing past questions like these, students not only prepare for their exams but also strengthen their understanding of core biological processes.
Stay tuned for more biology tutorials covering respiration, photosynthesis, and human body systems to ensure you’re fully prepared.
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