Photosynthesis takes place in the tiny structures of plant cells called what?

Photosynthesis takes place in the tiny structures of plant cells called what?

• A. Mitochondria
• B. Chloroplasts
• C. Nuclei
• D. Vacuoles

Answer: (B)

Photosynthesis happens in chloroplasts, the green, chlorophyll-filled organelles in plant cells. These structures capture light energy and use it to drive the chemical reactions that build sugar from carbon dioxide and water. The light reactions occur on the membranes inside chloroplasts, producing energy-rich carriers, while the sugar-building steps (Calvin cycle) use those carriers to synthesize glucose. Mitochondria generate energy for the cell through respiration, not photosynthesis. Nuclei store genetic material, and vacuoles mainly hold water and maintain cell turgor. So the tiny plant-cell structures where photosynthesis takes place are chloroplasts.

Photosynthesis happens in chloroplasts, the green, chlorophyll-filled organelles in plant cells. These structures capture light energy and use it to drive the chemical reactions that build sugar from carbon dioxide and water. The light reactions occur on the membranes inside chloroplasts, producing energy-rich carriers, while the sugar-building steps (Calvin cycle) use those carriers to synthesize glucose. Mitochondria generate energy for the cell through respiration, not photosynthesis. Nuclei store genetic material, and vacuoles mainly hold water and maintain cell turgor. So the tiny plant-cell structures where photosynthesis takes place are chloroplasts.