Question:
Which of the following divide during binary fission of Euglena?
Which of the following divide during binary fission of Euglena?
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Chromatophores ensure photosynthesis is inherited in Euglena daughter cells.
Updated On: Jun 20, 2026
- Nucleus, flagellum and stigma
- Nucleus, kinetosomes and contractile vacuole
- Nucleus, stigma and chromatophores
- Nucleus, kinetosomes and chromatophores
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The Correct Option is D
Solution and Explanation
Step 1: Understanding Euglena structure.
Euglena is a unicellular protist possessing nucleus, flagellum, chloroplasts (chromatophores), and kinetosomes.
Step 2: Binary fission process.
During binary fission, the cell divides longitudinally and internal structures are duplicated and distributed to daughter cells.
Step 3: Role of nucleus.
The nucleus undergoes mitotic division to ensure genetic material is equally distributed.
Step 4: Role of kinetosomes and chromatophores.
Kinetosomes (basal bodies) replicate to form flagella in daughter cells, and chromatophores divide to ensure photosynthetic ability.
Step 5: Evaluating options.
Flagellum and stigma do not directly divide; contractile vacuole is temporary and not a stable dividing organelle.
Step 6: Final conclusion.
Thus, nucleus, kinetosomes, and chromatophores divide during Euglena fission.
Euglena is a unicellular protist possessing nucleus, flagellum, chloroplasts (chromatophores), and kinetosomes.
Step 2: Binary fission process.
During binary fission, the cell divides longitudinally and internal structures are duplicated and distributed to daughter cells.
Step 3: Role of nucleus.
The nucleus undergoes mitotic division to ensure genetic material is equally distributed.
Step 4: Role of kinetosomes and chromatophores.
Kinetosomes (basal bodies) replicate to form flagella in daughter cells, and chromatophores divide to ensure photosynthetic ability.
Step 5: Evaluating options.
Flagellum and stigma do not directly divide; contractile vacuole is temporary and not a stable dividing organelle.
Step 6: Final conclusion.
Thus, nucleus, kinetosomes, and chromatophores divide during Euglena fission.
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