Question

Why is the pollen tube important?

• A. So cross-pollination may occur
• B. So the egg cell can develop in the ovule
• C. So the male gametes can reach the ovule
• D. So the pollination can be done by bees

Answer 1

The correct option is C

So the male gametes can reach the ovule

The pollen grain falling on the stigma germinates into a pollen tube. The pollen tube grows through the style and reaches the ovule. The pollen tube is important because it acts as a channel for transport of the sperm nuclei into the ovary. The sperm nuclei reach the ovule in the ovary and only then it can fertilise the ovum present in it.