A tube like structure grows down from the pollen grain to the style and reaches the ovule. This pollen tube is responsible for:

Correct option is C

​Correct Answer:C) carrying the male germ cell to the female germ cell in the ovary

Explanation:

During pollination and fertilization in flowering plants, a pollen tube grows from the pollen grain down the style and reaches the ovule inside the ovary. The main function of the pollen tube is to deliver the male gamete (sperm cell) to the female gamete (egg cell) for fertilization.

• When a pollen grain lands on a compatible stigma, it germinates and forms a pollen tube.
• The tube grows through the style and enters the ovule through the micropyle.
• Inside the ovule, the male gamete fuses with the female gamete (egg cell), leading to fertilization and seed formation.

Information Booster:

• Double Fertilization: One male gamete fuses with the egg (zygote formation), and another fuses with the central cell (endosperm formation).
  
• Micropyle: The small opening through which the pollen tube enters the ovule.
  
• Embryo Formation: After fertilization, the zygote develops into an embryo, leading to seed formation.
  
• Self vs Cross Pollination: Self-pollination occurs within the same flower, while cross-pollination involves pollen transfer between different flowers.
  
• Pollination Agents: Includes wind, water, insects, and birds for effective pollen transfer.