Final answer:
Euglenophyta can lose their ability to photosynthesize when not exposed to the sun for a while.
Step-by-step explanation:
Euglenophyta, a group of unicellular organisms, can lose their ability to photosynthesize when not exposed to the sun for a while. Photosynthesis is the process by which organisms convert sunlight into energy and synthesize carbohydrates. Without sunlight, euglenophyta cannot produce energy and carbohydrates, which are essential for their survival. If euglenophyta are not exposed to the sun for a while, they can lose their photosynthetic abilities. Euglenophyta, such as Euglena, utilize sunlight to synthesize carbohydrates from carbon dioxide during photosynthesis. These carbohydrates serve as an energy source and as building materials for various biomolecules. Euglena store carbohydrates in a glucose polymer with a 1,3 linkage, unlike the 1,4 linkage in normal starch. In the absence of sunlight, Euglena may revert to heterotrophy, acquiring nutrients by ingestion or absorption from their environment. Without light, photosynthetic euglenophyta will also be unable to maintain their chloroplasts, which are essential for photosynthesis.