NCERT exampler objective exercise — task. Science CBSE, Class 10.

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Choose the correct ones:

1. The breakdown of pyruvate to give carbon dioxide, water and energy takes place in

chloroplast
mitochondria
cytoplasm
nucleus

2. Which of the following statements about the autotrophs is incorrect?

They synthesize carbohydrates from carbon dioxide and water in the presence of sunlight and chlorophyll
They constitute the first trophic level in food chains
They store carbohydrates in the form of starch
They convert carbon dioxide and water into carbohydrates in the absence of sunlight

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