Question

Circulation type of protoplasmic streaming is studied in

• A. Staminal hair cell of Tradescantia
• B. Hydrilla leaf cells
• C. Vallisneria leaf cells
• D. Both B and C

Answer 1

Answer: (A)

Staminal hair cell of Tradescantia

• Cytoplasmic streaming or protoplasmic streaming refers to the movement of the cytoplasm within a cell.

• The stamens of Tradescantia have hairs which consist of filaments of cells.

• These filamentous cells are not embedded in the tissue and they also lack chloroplasts which makes it easier to observe the ultrastructure of the cell.

• Therefore, it is used to study the phenomenon of protoplasmic streaming.

• So, the correct answer is 'Staminal hair cell of Tradescantia'.