Previous year MCQs

General science UPPSC 2000 GS-I
Question

Assertion (A): Some bacteria can synthesise their own food.
Reason (R): These bacteria have green matter called chloroplasts.

Codes:

Answer & Solution

Answer: (Detailed Solution Below)

Option C: A is true but R is false

Detailed Solution:

The correct answer is “A is true but R is false”.
The correct answer is: (3) A is true but R is false

While some bacteria can synthesize their own food, they don't use chloroplasts. They employ different mechanisms for food production, such as chemosynthesis (using chemical energy) or photosynthesis using pigments other than chlorophyll.

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