The part of the plant cell needed for photosynthesis to happen is the chloroplast.

Here's why:

* Chloroplasts contain chlorophyll, the green pigment that absorbs light energy from the sun. This light energy is essential for photosynthesis to occur.

* Chloroplasts also have a complex internal structure with membranes that house the enzymes and molecules necessary for the light-dependent and light-independent reactions of photosynthesis.

While other parts of the plant cell play important roles in the overall life of the plant, the chloroplast is the specific location where the process of photosynthesis takes place.