Which organelle carries out photosynthesis in plant cells?

• A. Ribosome
• B. Chloroplast
• C. Lysosome
• D. Mitochondrion

Answer: (B)

Verified step by step guidance

1. Understand that photosynthesis is the process by which plants convert light energy into chemical energy stored in glucose.
2. Recall that photosynthesis occurs in a specific organelle within plant cells that contains pigments like chlorophyll.
3. Identify the organelle responsible for photosynthesis by recognizing that it has a green pigment and is unique to plant cells and some protists.
4. Eliminate options that do not perform photosynthesis: ribosomes (protein synthesis), lysosomes (waste breakdown), and mitochondria (cellular respiration).
5. Conclude that the chloroplast is the organelle that carries out photosynthesis in plant cells.