Budding

The idea

In budding, a bud develops as an outgrowth by repeated cell division at one specific site, grows into a tiny individual and, when fully mature, detaches from the parent as a new independent individual.

A tiny bump

A small bump appears on the side of a Hydra. After some time it becomes a tiny Hydra.

What happens to the tiny Hydra when it is fully grown?

• It detaches and lives on its own
• It stays attached forever
• It turns into a seed

Follow the bud

Press Next step.

One site, one new Hydra

The bud grows at one particular place on the parent. It becomes a tiny Hydra, and when it is fully mature it breaks away and lives on its own.

In budding, a bud develops as an outgrowth by repeated cell division at one specific site, grows into a tiny individual and, when fully mature, detaches from the parent as a new independent individual.

Notes

Budding: an outgrowth forms by repeated cell division at one site, grows into a tiny individual and detaches as a new individual when fully mature.

Check yourself

How does a bud of Hydra develop?

When does the bud detach from the parent?

Which organism reproduces by budding as described in this section?

• All over the body at once. The bud develops at one specific site on the body.
• As an outgrowth by repeated cell division at one specific site — correct. Yes!
• From a seed inside the parent. The book describes a bud as an outgrowth due to repeated cell division, not a seed.
• As soon as the outgrowth appears. The buds first develop into tiny individuals. They detach when fully mature.
• Never, it stays attached for life. When fully mature, the bud detaches and becomes a new independent individual.
• When it is fully mature — correct. Yes!
• Hydra — correct. Yes!
• Spirogyra. Spirogyra reproduces by breaking up into fragments.
• Plasmodium. Plasmodium divides into many daughter cells simultaneously by multiple fission.