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Stroma in the chloroplasts of higher plant contains:

1. light-dependent reaction enzymes
2. ribosomes
3. chlorophyll
4. light-independent reaction enzymes

Correct answer: light-independent reaction enzymes

Solution

The stroma contains the enzymes for the light-independent reactions (Calvin cycle), which use ATP and NADPH to fix carbon dioxide into sugars. Light-dependent reaction enzymes and chlorophyll are associated with the thylakoid membranes instead.

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