Selected MCQ

Current Question
Which structure regulates passage of substances into cell?
  • A. Nucleus
  • B. Cell membrane
  • C. Mitochondria
  • D. Ribosome
Correct Answer: B
Explanation:
Plasma membrane controls transport.
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 blood cells carry oxygen?
  • A. WBC
  • B. RBC
  • C. Platelets
  • D. Plasma
Correct Answer: B
Explanation:
Red blood cells transport oxygen.
Related Question 3
Which phase of cell cycle duplicates DNA?
  • A. G1
  • B. S
  • C. G2
  • D. M
Correct Answer: B
Explanation:
DNA synthesis occurs in S phase.
Related Question 4
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 5
Which cell organelle controls activities?
  • A. Ribosome
  • B. Nucleus
  • C. Golgi
  • D. Mitochondria
Correct Answer: B
Explanation:
Nucleus regulates cell.