Answer:
The location where photosynthesis occurs in prokaryotes is the infolded regions of their plasma membrane while the location in eukaryotes is an organelle called the chloroplast.
Step-by-step explanation:
Prokaryotes are unicellular organisms in which membrane-bound organelles including chloroplasts are absent. But in prokaryotes that perform photosynthesis (eg: cyanobacteria), the location where this process occurs is the infolded regions of their plasma membrane which acts like thylakoids.
Eukaryotes have organelles called chloroplasts, where photosynthesis takes place. Certain disc-shaped photosynthetic structures called thylakoids are stacked inside the chloroplasts.
Inside the thylakoid membranes of the chloroplast or the infolded regions of the bacterial plasma membranes, photosynthetic pigment molecules are present. They organize into photosystems, where photosynthesis occurs (light energy is converted into chemical energy).