Question

which structure is the arrow pointing to? what is the function of this organelle?

Explanation:

The image shows a plant - cell under a microscope. The arrow is likely pointing to a nucleus. The nucleus is the control center of the cell, containing the cell's genetic material (DNA) and regulating cellular activities such as growth, metabolism, and reproduction.

Answer:

The structure the arrow is pointing to is likely the nucleus. Its function is to control cellular activities and store genetic information.