Gemmule – Structure formation and Sponge Reproduction
What is a Gemmule?
A gemmule is a reproductive structure in some freshwater sponges, enabling asexual reproduction and survival in harsh environments by protecting and germinating reproductive cells.
Explain the Process of Formation of a Sponge.
When cells aggregate and differentiate during the larval stage, a sponge is formed. Eventually, these cells arrange themselves into the distinctive sponge body structure.
Name Different Methods through Which a Sponge can Reproduce.
Sponge reproduction is asexual as well as sexual. Usually, sperm and eggs are released into the water for external fertilisation during sexual reproduction.
Explain the Structure of Gemmules.
The Micropyle, Spicule, Inner Layer, Archaeocytes, and Outer Pneumatic Layer comprise the structure of Gemmules.
Where are Gemmules Found?
Gemmules often have a spherical or ball-like shape with a thick covering of siliceous spicules on the periphery and a core mass of amoeboid cells.
What is the Process of Gemmulation?
Gemmulation is the process of gemmule formation in sponges. During this process specialized cells aggregate within a sponge, forming a mass enclosed by a protective scleroprotein membrane that together forms the geemule.
What is the Difference Between Budding and Gemmule Formation?
Budding is a form of asexual reproduction where a new organism develops as an outgrowth from the parent organism. Whereas, Gemmule formation involves formation of cell aggregates encased in a protective covering.
Gemmule – Formation, Structure and Role in Sponge Reproduction
Gemmules are the asexual reproductive structures found in some freshwater and marine sponge species. The gemmules in sponges are produced in adverse weather circumstances, including drought or low temperatures. The gemmules play a role in giving sponges the ability to tolerate harsh environmental conditions. In this article, we will study the gemmules in sponges, their structure, characteristics, and their advantages.
Table of Content
- What are Gemmules?
- Structure of Gemmules
- Gemmule Diagram
- Parts of Gemmule
- Gemmules Classification
- What are the Characteristics of Gemmules?
- What is the Process of Gemmule Formation?
- Gemmule Formation Examples
- Role of Gemmule in Sponge Reproduction
- Advantages of Gemmule Formation