Euglena labeled Diagram Science Quiz - Euglenas are a group of eukaryotic, single-celled organisms that belong to the genus Euglena of the kingdom Protista. They are both autotrophic and heterotrophic – a Euglena is able to produce their own food through photosynthesis, as well as move and eat food.
These tiny microorganisms are easily collected in stagnant freshwater bodies for experimentation. When viewed under a microscope, living Euglena can look like teardrop-shaped organisms swimming rather rapidly.
Euglena possess a long, whip-like filament called a flagellum to quickly propel itself in water. Their plasma membrane also contains the pellicle, a thin, flexible layer of protein that supports the Euglena’s body and allows it to move by wriggling.
Many organelles are suspended in its cytoplasm. Near the flagellum is a reservoir, an area which stores nutrients. This area is also close to a light-sensitive organelle called the stigma, which helps the Euglena find places with enough sunlight to photosynthesize. Just like plants, Euglena also have chloroplasts to take charge of the photosynthetic process.
To remove excess fluid from its body, the Euglena has a contractile vacuole. This organelle transports fluids into the reservoir to be eliminated.
With this Euglena labeled diagram, you can develop better insights into organisms under the genus Euglena and their distinct combination of plant and animal traits, especially their ability to both eat food and photosynthesize.
A labeled diagram of the parts and functions of a Euglena:
Nucleus: The nucleus is the central structure in the cell that contains the genetic material (DNA) and controls the cell's activities.
Cell Membrane: The cell membrane is a thin, flexible barrier that surrounds the cell and controls what enters and exits the cell.
Cytoplasm: The cytoplasm is a gel-like substance that fills the cell and contains all the cell's organelles.
Chloroplasts: Chloroplasts are organelles found in plant cells and algae that contain chlorophyll and are responsible for photosynthesis.
Eyespot: The eyespot is a light-sensitive pigment located on the surface of the cell that helps the Euglena orient itself towards light.
Flagella: Flagella are long, whip-like structures that help the Euglena move.
contractile vacuole: The contractile vacuole is an organelle that helps regulate the cell's water balance by removing excess water from the cell.