Selected MCQ

Current Question
Which type of immunity is immediate?
  • A. Active
  • B. Passive
  • C. Adaptive
  • D. Natural
Correct Answer: B
Explanation:
Passive immunity provides instant antibodies.
Related Question 1
Which vitamin helps immunity?
  • A. A
  • B. B
  • C. C
  • D. D
Correct Answer: C
Explanation:
Vitamin C boosts immunity.
Related Question 2
Which blood type is universal donor?
  • A. A
  • B. B
  • C. AB
  • D. O
Correct Answer: D
Explanation:
O lacks A/B antigens.
Related Question 3
Which reaction type forms larger molecule from smaller ones?
  • A. Decomposition
  • B. Addition
  • C. Substitution
  • D. Elimination
Correct Answer: B
Explanation:
Addition combines molecules.
Related Question 4
Which cell type lacks nucleus?
  • A. Neuron
  • B. RBC
  • C. WBC
  • D. Muscle cell
Correct Answer: B
Explanation:
Mature RBCs lack nucleus.
Related Question 5
Which type of bonding involves delocalized electrons?
  • A. Ionic
  • B. Covalent
  • C. Metallic
  • D. Hydrogen
Correct Answer: C
Explanation:
Metallic bonding features free electrons.