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MCQs

Total Questions : 82 | Page 3 of 9 pages
Question 21. In photosynthesis carbon dioxide, light and water are
  1.    reactants
  2.    products
  3.    by-products
  4.    catalysts
 Discuss Question
Answer: Option A. -> reactants
Answer: (a).reactants
Question 22. Smallest particles of light are called
  1.    dust
  2.    protons
  3.    photons
  4.    positrons
 Discuss Question
Answer: Option C. -> photons
Answer: (c).photons
Question 23. Wave-length of a visible light ranges between
  1.    360-678
  2.    380-750
  3.    280-670
  4.    380-700`
 Discuss Question
Answer: Option B. -> 380-750
Answer: (b).380-750
Question 24. There is a chemical link between anabolism and catabolism in form of
  1.    ADP
  2.    ATP
  3.    ATT
  4.    ASP
 Discuss Question
Answer: Option B. -> ATP
Answer: (b).ATP
Question 25. Molecule of chlorophyll is composed of
  1.    hydrophyllic head
  2.    tail
  3.    Both a and b
  4.    hydrophillc joint
 Discuss Question
Answer: Option C. -> Both a and b
Answer: (c).Both a and b
Question 26. Exchange of gases between organism and environment is termed as
  1.    internal respiration
  2.    external respiration
  3.    respiration
  4.    acquired respiration
 Discuss Question
Answer: Option B. -> external respiration
Answer: (b).external respiration
Question 27. Chloroplast is present inside leaf within tissue called
  1.    palisade mesophyll
  2.    microphyll
  3.    epidermis
  4.    spongy mesophyll
 Discuss Question
Answer: Option A. -> palisade mesophyll
Answer: (a).palisade mesophyll
Question 28. Photosynthesis occur in time of
  1.    day
  2.    night
  3.    mid night
  4.    all the time
 Discuss Question
Answer: Option A. -> day
Answer: (a).day
Question 29. Splitting of water molecule releasing oxygen is called
  1.    photosynthesis
  2.    photolysis
  3.    photolytic
  4.    photophosphorylation
 Discuss Question
Answer: Option B. -> photolysis
Answer: (b).photolysis
Question 30. Photosynthetic prokaryotes have special photosynthetic membranes which work like
  1.    lumen
  2.    stamen
  3.    thylakoids
  4.    stroma
 Discuss Question
Answer: Option C. -> thylakoids
Answer: (c).thylakoids

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