Question

Which part of the pollen grain wall protrudes through the germ pore to form the pollen tube during germination?

Options

• Exine

• Intine

• Sporoderm

• Pollenkitt

Answer 1

Intine

Explanation:

While the exine is the tough outer layer, the intine is the thin, flexible inner layer. During germination, the intine expands and grows out through a germ pore to form the pollen tube.