Anterior invagination is characteristic ofa)Sarcodinesb)Euglenoidsc)Di...
Euglena has chloroplasts with the help of which it performs autotrophic nutrition by photosynthesis, Like animals, it lacks cell wall, possess pellicle, an anterior invagination, flagellum, eye spot, etc and capable of obtaining readymade food in dark (heterotrophic)
Anterior invagination is characteristic ofa)Sarcodinesb)Euglenoidsc)Di...
Explanation:
Euglenoids
Anterior invagination is a characteristic feature of euglenoids. This refers to the presence of a pocket-like structure at the anterior end of the cell. Here's how this feature is specific to euglenoids:
- Unique structure: Euglenoids possess a specialized organelle called a pellicle, which is a protein layer that surrounds the cell membrane. This pellicle allows for flexibility and shape changes in the cell, leading to the formation of the anterior invagination.
- Function: The anterior invagination in euglenoids serves multiple purposes. It is involved in the process of feeding, where the cell can engulf prey through this pocket-like structure. Additionally, it plays a role in sensory perception and movement of the cell.
- Identification: When observing euglenoids under a microscope, the presence of the anterior invagination can be a key characteristic for identifying these organisms. This feature sets them apart from other groups of protists.
In conclusion, the presence of anterior invagination in euglenoids is a unique and defining feature of this group of organisms. It plays important roles in feeding, sensory perception, and movement, making it a crucial aspect of their biology.
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.