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MCQs

Total Questions : 150 | Page 8 of 15 pages
Question 71. What is photosynthesis?
  1.    Plants generating carbohydrates and oxygen from carbon dioxide, water and sunlight using chlorophyll
  2.    Algae generating carbohydrates and oxygen from carbon dioxide, water and sunlight using chlorophyll
  3.    Cyanobacteria generating carbohydrates and oxygen from carbon dioxide, water and sunlight using chlorophyll
  4.    Photoautotroph generating carbohydrates and oxygen from carbon dioxide, water and sunlight
 Discuss Question
Answer: Option D. -> Photoautotroph generating carbohydrates and oxygen from carbon dioxide, water and sunlight
Answer: (d).Photoautotroph generating carbohydrates and oxygen from carbon dioxide, water and sunlight
Question 72. Which of the following best indicates photosynthesis?
  1.    Carbon dioxide + water → oxygen + glucose
  2.    6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ (in the presence of sunlight)
  3.    Carbon dioxide + water → glucose + oxygen (in the presence of sunlight)
  4.    Oxygen + glucose → carbon dioxide + water
 Discuss Question
Answer: Option B. -> 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ (in the presence of sunlight)
Answer: (b).6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ (in the presence of sunlight)
Question 73. What is the primary product of photosynthesis?
  1.    Glucose
  2.    Oxygen
  3.    Water
  4.    Carbon dioxide
 Discuss Question
Answer: Option A. -> Glucose
Answer: (a).Glucose
Question 74. Which of the following are photoautotrophs?
  1.    Cyanobacteria, algae, plants
  2.    Archaebacteria
  3.    Deer
  4.    Tiger
 Discuss Question
Answer: Option A. -> Cyanobacteria, algae, plants
Answer: (a).Cyanobacteria, algae, plants
Question 75. Which of the following organisms can perform photosynthesis?
  1.    Autotrophs
  2.    Algae
  3.    Photoautotrophs
  4.    Plants
 Discuss Question
Answer: Option C. -> Photoautotrophs
Answer: (c).Photoautotrophs
Question 76. Conversion of usable sunlight energy into chemical energy is associated with _______
  1.    Red pigmentation
  2.    Green pigmentation
  3.    Orange pigmentation
  4.    Fruits
 Discuss Question
Answer: Option B. -> Green pigmentation
Answer: (b).Green pigmentation
Question 77. _______ and _______ is present in all chlorophylls.
  1.    A hydrophilic tail, a lipid soluble head
  2.    A hydrophobic tail, a lipid soluble head
  3.    A hydrophilic tail, a lipid insoluble head
  4.    A lipid soluble tail, a hydrophilic head
 Discuss Question
Answer: Option D. -> A lipid soluble tail, a hydrophilic head
Answer: (d).A lipid soluble tail, a hydrophilic head
Question 78. What type of chemical reactions are involved in photosynthesis?
  1.    Condensation reactions and redox reactions
  2.    Combustion
  3.    Double displacement
  4.    Single displacement
 Discuss Question
Answer: Option A. -> Condensation reactions and redox reactions
Answer: (a).Condensation reactions and redox reactions
Question 79. Cyanobacteria have chloroplasts.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 80. What is the condensation reaction responsible for in the process of photosynthesis?
  1.    Electron transfer
  2.    Splitting out water molecules
  3.    Splitting out water molecules and phosphorylation
  4.    Electron transfer and phosphorylation
 Discuss Question
Answer: Option C. -> Splitting out water molecules and phosphorylation
Answer: (c).Splitting out water molecules and phosphorylation

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