Selected MCQ

Current Question
The standard cell potential for a spontaneous galvanic cell is:
  • A. Negative
  • B. Zero
  • C. Positive
  • D. Infinite
Correct Answer: C
Explanation:
A spontaneous cell has (E^\circ_{\text{cell}} > 0).
Related Question 1
Which phenomenon is explained by spontaneous symmetry breaking?
  • A. Refraction
  • B. Superconductivity
  • C. Diffusion
  • D. Reflection
Correct Answer: B
Explanation:
Superconductivity arises from broken gauge symmetry.
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 energy is potential?
  • A. Motion
  • B. Stored
  • C. Heat
  • D. Light
Correct Answer: B
Explanation:
Potential energy is stored energy.
Related Question 5
Which cell organelle controls activities?
  • A. Ribosome
  • B. Nucleus
  • C. Golgi
  • D. Mitochondria
Correct Answer: B
Explanation:
Nucleus regulates cell.