Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · Nutrition and Nutrients Medium · 45s
Which of the following statements about autotrophic nutrition is/are correct? 1. Green plants prepare food by photosynthesis. 2. Algae and some bacteria can also be autotrophic. 3. Fungi are autotrophic organisms. Select the correct answer:
TopicNutrition and Nutrients
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Q 1 / 60Next question →
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Fungi are heterotrophic (saprophytic); only green plants, algae and some bacteria (like cyanobacteria) are autotrophic.
Final Answer: Option A — 1 and 2 only