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
Those organisms that cannot perform photosynthesis rely on other organisms for energy by feeding on them.
PHOTOSYNTHESIS:
Photosynthesis is the process by which green plants obtain their food using energy from sunlight. Photosynthesis is a unique process to certain organisms like green plants, green algae etc.
However, majority of organisms cannot perform photosynthesis, and they are termed heterotrophic meaning that they rely on other organisms to derive energy needed for their metabolic activities.
Therefore, those organisms that cannot perform photosynthesis rely on other organisms for energy by feeding on them.
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