JAMB 2025 Day 1 Questions and Answers – English, Physics & Biology

JAMB 2025 Day 1 Questions and Answers. The 2025 JAMB UTME officially commenced on April 24, 2025, and thousands of candidates across Nigeria sat for their first-day exam. At StartSmart Nigeria, we’ve gathered questions shared by some of these candidates to help future test-takers revise more effectively. While this is not an expo, these questions offer insight into recurring topics, formats, and expectations.

Let’s dive into some of the Day 1 JAMB 2025 questions and answers across core subjects like Use of English, Physics, and Biology.

✅ JAMB Use of English 2025 – Day 1 Questions

1. “The submariners turned out to be the dark horse.”
   Answer: C) Won unexpectedly
2. “Only the small fry gets punished for such misdemeanours.”
   Answer: B) Unimportant people
3. “He spoke with his heart in his mouth.”
   Answer: E) With fright and agitation
4. “The leader in today’s issue of our newspaper focuses on inflation.”
   Answer: C) Editorial
5. “From the way my friend talks, you can see he is such a bore.”
   Answer: C) Uninteresting
6. “His jail terms were to run concurrently.”
   Answer: A) Simultaneously
7. “There is some obvious symmetry in the presentation.”
   Answer: D) Orderliness

🔬 JAMB Physics 2025 – Day 1 Questions & Answers

1. Purpose of the depletion region in a p-n junction diode
   Answer: C) To create a potential barrier
2. Which is a scalar quantity?
   Answer: D) Temperature
3. Heisenberg’s Uncertainty Principle implies…
   Answer: B) The more you know a particle’s position, the less you know its momentum
4. Particle tunneling through energy barrier
   Answer: A) Tunneling
5. Speed at A/2 in SHM
   Answer: A) √(3kA²/4m)
6. Unit of Force
   Answer: B) Newton
7. Pressure defined as…
   Answer: A) Force per unit area
8. Restoring force (Hooke’s Law)
   Answer: B) 20 N
9. Car accelerates to 20 m/s
   Answer: B) 4 m/s²
10. Period of a uniform rod pendulum
    Answer: B) 2π √(2L/3g)
11. Time constant of RC circuit (10 μF, 1000 Ω)
    Answer: A) 0.01 s
12. Motion definition
    Answer: B) Changes position with time
13. Law of conservation of energy
    Answer: B) Energy remains constant in an isolated system
14. Acceleration due to gravity
    Answer: C) 9.81 m/s²
15. Which wave statement is true?
    Answer: B) Waves require a medium
16. Function of a fuse
    Answer: C) Protect against overcurrent
17. Work done (10 kg, 2 m)
    Answer: B) 200 J
18. Principle behind transformer
    Answer: A) Electromagnetic induction
19. Car travels 200 km in 4 hours – Average speed
    Answer: B) 50 km/h
20. Opposition to electric current
    Answer: A) Resistance
21. Kinetic energy (5 kg, 4 m/s)
    Answer: B) 40 J
22. Wave changing direction in new medium
    Answer: B) Refraction
23. Average power of accelerating car
    Answer: B) 2000 W
24. Energy in a spring
    Answer: B) Potential energy
25. Wave speed (50 Hz, 2 m)
    Answer: C) 100 m/s
26. Generator works on
    Answer: A) Electromagnetic induction
27. Energy in capacitor (2 μF, 100 V)
    Answer: A) 0.01 J
28. Force opposing motion
    Answer: A) Friction
29. Final velocity (5 m/s + 2 m/s² × 3 s)
    Answer: B) 11 m/s
30. Material returning to original shape
    Answer: A) Elasticity
31. Power dissipated (10 Ω, 2 A)
    Answer: B) 40 W
32. Energy needed to remove an electron
    Answer: A) Work function
33. Angular frequency (2 kg, 100 N/m)
    Answer: B) 7 rad/s
34. Wave spreads around obstacles
    Answer: C) Diffraction
35. Power (5 A, 10 Ω)
    Answer: B) 250 W
36. Free fall condition
    Answer: C) Only gravity acts on the object
37. Colors in a rainbow – Caused by?
    Answer: D) Dispersion
38. Kinetic energy (10 kg, 5 m/s)
    Answer: D) 75 Joules
39. Gravitational potential energy formula
    Answer: A) PE = mgh
40. Unit of electric charge
    Answer: B) Coulomb
41. Acceleration in SHM
    Answer: A) Directly proportional to displacement
42. Sound waves bend around obstacles
    Answer: C) Diffraction
43. Main energy source for Earth
    Answer: B) Solar energy
44. Gas to solid conversion
    Answer: B) Deposition
45. Speed of electromagnetic waves in vacuum
    Answer: B) Light speed
46. Lens for hyperopia correction
    Answer: B) Convex lens

🧬 JAMB Biology 2025 – Day 1 Questions & Answers

1. Basic unit of life
   Answer: A) Cell
2. Organelle for photosynthesis
   Answer: B) Chloroplast
3. Cells become specialized through…
   Answer: C) Differentiation
4. Cellular respiration occurs in…
   Answer: A) Mitochondria
5. Function of cell membrane
   Answer: B) Regulates cell entry and exit
6. Protein synthesis happens in…
   Answer: A) Ribosome
7. Cell division process
   Answer: A) Mitosis
8. Stores genetic information
   Answer: A) Nucleus
9. Function of lysosomes
   Answer: C) Digests cellular waste
10. Modifies and packages proteins
    Answer: A) Golgi apparatus
11. Study of heredity
    Answer: A) Genetics
12. Dominant trait example
    Answer: A) Tallness in pea plants
13. Physical appearance of a trait
    Answer: B) Phenotype
14. Example of genetic disorder
    Answer: C) Sickle cell anemia
15. Genetic information passed through…
    Answer: D) Heredity
16. Type of genetic variation
    Answer: D) All of the above
17. Genetic makeup of an organism
    Answer: A) Genotype
18. Recessive trait example
    Answer: B) Shortness in pea plants
19. Protein synthesis process
    Answer: B) Translation
20. Types of genetic testing
    Answer: D) All of the above
21. Study of organism-environment interaction
    Answer: A) Ecology
22. Example of symbiosis
    Answer: C) Mutualism
23. Maximum population an environment can support
    Answer: A) Carrying capacity (continued in full blog)

📌 Final Thoughts from StartSmart Nigeria

These JAMB 2025 Day 1 questions and answers are a helpful guide to what you might expect in future UTME days. Make sure to focus on understanding the concepts rather than cramming answers. Stay tuned to StartSmart Nigeria for daily updates, tips, and exam resources to boost your success in the UTME.