Which organelle enables photosynthesis in plant cells?

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Study for the 9th Grade Biology SOL Test. Prepare with flashcards and multiple choice questions, each featuring hints and explanations. Get ready for your exam!

Multiple Choice

Which organelle enables photosynthesis in plant cells?

Explanation:
Chloroplasts are the organelles that enable photosynthesis in plant cells. They contain chlorophyll, the pigment that captures light energy from the sun. In the thylakoid membranes inside chloroplasts, the light-dependent reactions use light to convert energy into ATP and NADPH. The Calvin cycle, running in the surrounding stroma, then uses that energy to fix carbon dioxide into glucose. This combination lets plants convert light energy into stored chemical energy. Other organelles have different jobs: mitochondria generate ATP during respiration, ribosomes build proteins, and the vacuole stores water and maintains cell structure.

Chloroplasts are the organelles that enable photosynthesis in plant cells. They contain chlorophyll, the pigment that captures light energy from the sun. In the thylakoid membranes inside chloroplasts, the light-dependent reactions use light to convert energy into ATP and NADPH. The Calvin cycle, running in the surrounding stroma, then uses that energy to fix carbon dioxide into glucose. This combination lets plants convert light energy into stored chemical energy. Other organelles have different jobs: mitochondria generate ATP during respiration, ribosomes build proteins, and the vacuole stores water and maintains cell structure.

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