Some organisms perform photosynthesis to produce energy other organisms can’t do photosynthesis what can they do in order to generate energy

Protist like algae and cyanobacteria all conduct oxygenic photosynthesis 1,14. That means they require carbon dioxide, water, and sunlight (solar energy is collected by chlorophyll A). Plants and phytoplankton use these three
ingredients to produce glucose (sugar) and oxygen.

Plants conduct normal photosynthesis.

Organisms that can’t produce photosynthesis like humans which are animals eat food like meat to produce energy in a form of ADP -ATP that powers the Mitochondira