In plants, in which organelle does photosynthesis primarily occur?

• A. Mitochondrion
• B. Central vacuole
• C. Ribosome
• D. Chloroplast

Answer: (D)

Verified step by step guidance

1. Understand that photosynthesis is the process by which plants convert light energy into chemical energy, producing glucose and oxygen.
2. Recall that photosynthesis primarily occurs in a specific organelle within plant cells that contains pigments like chlorophyll.
3. Identify the organelle responsible for photosynthesis by considering the options: mitochondrion, central vacuole, ribosome, and chloroplast.
4. Know that mitochondria are involved in cellular respiration, central vacuoles store water and nutrients, and ribosomes synthesize proteins, so they are not the sites of photosynthesis.
5. Conclude that the chloroplast is the organelle where photosynthesis primarily occurs because it contains chlorophyll and the necessary structures for capturing light energy.