Sample questions
CDS2026
Which one of the following is not a function of the pigment carotenoid ?
- A Responsible for yellow-orange hues of autumnal leaves
- B Protecting chlorophyll from photo-oxidation
- C Photoprotective role in our eyes
- D Reaction centre in the pigment system ✓
✓ Correct answer: (D)
Science & Technology › Biology & Health
CSE2025
With reference to the planet Earth, consider the following statements
- Rain forests produce more oxygen than that produced by oceans
- Marine phytoplankton and photosynthetic bacteria produce about 50% of world's oxygen
- Well-oxygenated surface water contains several folds higher oxygen than that in atmospheric air
Which of the statements given above is/are correct?
- A I and II
- B II only ✓
- C I and III
- D None of the above statements is correct
✓ Correct answer: (B)
Science & Technology › Biology & Health
GEO2025
Which one of the following categories does not have photosynthetic pigments?
- A Algae
- B Fungi ✓
- C Angiosperms
- D Gymnosperms
✓ Correct answer: (B)
Science & Technology › Biology & Health
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