Selected MCQ

Current Question
Which structure protects brain?
  • A. Heart
  • B. Skull
  • C. Liver
  • D. Lung
Correct Answer: B
Explanation:
Skull encases brain.
Related Question 1
Which structure forms spindle fibers?
  • A. Ribosome
  • B. Centrosome
  • C. Lysosome
  • D. Golgi
Correct Answer: B
Explanation:
Centrosomes organize spindle.
Related Question 2
Which structure controls gene expression?
  • A. DNA
  • B. RNA
  • C. Protein
  • D. All
Correct Answer: D
Explanation:
Regulation involves DNA, RNA, and proteins.
Related Question 3
Which layer protects from UV?
  • A. Troposphere
  • B. Stratosphere
  • C. Mesosphere
  • D. Thermosphere
Correct Answer: B
Explanation:
Ozone absorbs UV.
Related Question 4
Which structure is site of protein synthesis?
  • A. Nucleus
  • B. Ribosome
  • C. Lysosome
  • D. Golgi
Correct Answer: B
Explanation:
Ribosomes assemble amino acids.
Related Question 5
Which structure carries oxygen in blood?
  • A. Plasma
  • B. Hemoglobin
  • C. Platelets
  • D. Antibodies
Correct Answer: B
Explanation:
Hemoglobin binds oxygen.