Question

A pollen tube of a flowering plant is the

• A. Male gamete
• B. Female gamete
• C. Germinating spore
• D. Male gametophyte

Answer 1

The correct option is D Male gametophyte

A pollen tube is a tubular structure produced by the male gametophyte of seed plants when it germinates. They act as conduits to transport the male gamete cells from the pollen grain—either from the stigma (in flowering plants) to the ovules at the base of the pistil or directly through ovule tissue in some gymnosperms. Pollen tube formation is important for sexual reproduction to occur in seed plants. Pollen tubes are unique to plants and their structure had evolved over plant history.

So the correct option is 'male gametophyte'.