Chloroplast is present in which of the following parts of a cell?

The correct option is Cytoplasm.

To understand why, let us look at the structure and organization of a plant cell:
The cell is filled with a jelly-like substance called the cytoplasm, which is bounded by the cell membrane. The cytoplasm serves as the primary arena for cellular activities and houses various specialized structures known as organelles.

A chloroplast is a double-membrane-bound organelle responsible for conducting photosynthesis, where light energy is converted into chemical energy. Just like other cellular organelles, chloroplasts are suspended and distributed within the cytoplasm of the cell to carry out their functions.

Let us briefly review the other options to understand why they are incorrect:
• Nucleoplasm: This is the fluid substance found inside the nucleus of a cell, which houses the genetic material (DNA), not chloroplasts.
• Peroxisome: This is another independent membrane-bound organelle involved in lipid metabolism and chemical detoxification, also suspended in the cytoplasm.
• Endoplasmic reticulum: This is a network of membranes involved in the synthesis and transport of proteins and lipids, rather than a compartment that contains other organelles.

Therefore, chloroplasts are present and suspended within the cytoplasm of the cell.