NTA Abhyas NEET2020BotanyBiological ClassificationPractice
What is the function of the rich protein layer found in Euglena instead of a cell wall?
Options
- AIt contributes to photosynthesis.
- BIt helps in locomotion.
- CIt contributes to flexibility.
- DIt allows the organism to be heterotrophic in the absence of sunlight.
Correct answer
C. It contributes to flexibility.
Step-by-step solution
Euglenoids are freshwater organisms. Instead of a cell wall, they have a protein-rich layer called pellicle which makes their body flexible. They have two flagella, a short and a long one. Though they are photosynthetic in the presence of sunlight, when deprived of sunlight, they behave like heterotrophs by predating on other smaller organisms.