What is the importance of photosynthesis to non-photosynthetic organisms?

What is the importance of photosynthesis to non-photosynthetic organisms?

All cells must have chloroplasts in order to survive.

All other organisms require oxygen for life processes.

Photosynthesis is the only way to make ATP.

Photosynthesis captures energy that is then transferred to other organisms.

The sugars made during photosynthesis are building blocks of DNA.