Question

Pollen tube cytoplasm is like any other living cell in showing

• A. Callose
• B. Large vacuoles
• C. Cytoplasmic streaming
• D. Mucilage vesicles

Answer 1

Answer: (C)

Cytoplasmic streaming

Cytoplasmic streaming is the phenomenon of movement of cytoplasm in bacteria, higher plants and animals. It is also called as cyclosis. Pollen tube also shows streaming of cytoplasm. It is called as fountain streaming. It performs important functions like the positioning of organelles and the transport of nutrients and metabolites. In angiosperm, cytoplasmic streaming in pollen tube helps in the movement of sperm to the ovary to carry out double fertilization inside the cytoplasm of the pollen tube.

Thus, the correct answer is 'Cytoplasmic streaming'.