PERIPLAST Meaning and
Definition
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Periplast refers to the outer layer or protective covering found in certain organisms, particularly in some lower marine invertebrates such as sponges, radiolarians, and infusorians. It is a vital component of the cell structure and plays a crucial role in providing support and protection to these organisms.
The periplast can vary in composition and appearance depending on the organism. In sponges, for example, it is composed of a complex network of specialized cells called spicules. These spicules can be made of different materials such as calcium carbonate or silica, and they give the sponge its rigidity and shape. Additionally, the periplast in sponges can also contain collagen fibers, which further enhance its strength and durability.
In radiolarians and infusorians, the periplast is typically made up of a gelatinous substance. This gel-like matrix helps these organisms maintain their structure and enables them to move and capture food effectively.
Overall, the periplast acts as a barrier against external threats like predation and physical damage, while also providing a scaffold for cellular processes. It serves as a protective shield, enhancing the survival chances of these organisms in their respective environments.
In summary, periplast refers to the outer layer or covering seen in certain lower marine invertebrates, providing essential support, shape, and protection to these organisms.
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1. Stroma or matrix of an organ. 2. Cytoplasm, the protoplasm of a cell surrounding the nucleus, periblast.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for PERIPLAST
- oeriplast
- leriplast
- -eriplast
- 0eriplast
- pwriplast
- psriplast
- pdriplast
- prriplast
- p4riplast
- p3riplast
- peeiplast
- pediplast
- pefiplast
- petiplast
- pe5iplast
- pe4iplast
- peruplast
- perjplast
- perkplast
- peroplast
Etymology of PERIPLAST
The word "Periplast" has its roots in Greek language. It is composed of two Greek words: "peri" meaning "around" or "surrounding", and "plastos" meaning "molded" or "formed". When combined, the term "Periplast" refers to the outer layer or covering of an organism, usually an organism with cellular structures such as algae or certain protozoans. The word is often used in the context of biology or botany to describe the protective layer that surrounds certain cells or organisms.
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