Selected MCQ

Current Question
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 1
Which reaction forms ester?
  • A. Hydrolysis
  • B. Esterification
  • C. Oxidation
  • D. Reduction
Correct Answer: B
Explanation:
Acid + alcohol forms ester.
Related Question 2
Which molecule is the immediate donor of phosphate in many cellular energy-transfer reactions?
  • A. NADH
  • B. ATP
  • C. DNA
  • D. Glycogen
Correct Answer: B
Explanation:
ATP hydrolysis commonly drives endergonic reactions via phosphate transfer.
Related Question 3
Which rock type forms from cooling magma?
  • A. Sedimentary
  • B. Metamorphic
  • C. Igneous
  • D. Clastic
Correct Answer: C
Explanation:
Igneous rocks form from molten material.
Related Question 4
Which process forms soil?
  • A. Weathering
  • B. Fusion
  • C. Respiration
  • D. Photosynthesis
Correct Answer: A
Explanation:
Weathering breaks rocks.
Related Question 5
Which structure forms spindle fibers?
  • A. Ribosome
  • B. Centrosome
  • C. Lysosome
  • D. Golgi
Correct Answer: B
Explanation:
Centrosomes organize spindle.