Which of the following organelles is involved in photosynthesis?

Chloroplasts are the organelles responsible for photosynthesis in plant cells and some protists. They contain chlorophyll, the green pigment that captures light energy from the sun, which is essential for the photosynthetic process. In chloroplasts, carbon dioxide and water are converted into glucose and oxygen, utilizing sunlight as the energy source. This process is vital for the survival of plants and contributes to the Earth's oxygen supply and carbon cycle.

The other organelles play different roles in the cell. For instance, lysosomes are involved in the digestion and breakdown of waste materials and cellular debris, while mitochondria are responsible for cellular respiration, converting food into usable energy in the form of ATP. The nucleus serves as the control center of the cell, housing genetic material and coordinating cellular activities, but it does not participate in photosynthesis. Thus, chloroplasts are uniquely specialized for this vital process.