The organelle that allows for photosynthesis to take place is the chloroplast.

Here's why:

* Chloroplasts contain chlorophyll: This green pigment is essential for capturing light energy from the sun.

* They have a complex internal structure: This includes thylakoid membranes where light-dependent reactions occur and the stroma where the Calvin cycle (light-independent reactions) happens.

Let me know if you'd like to learn more about the specific steps of photosynthesis!