Diatoms are classified as eukaryotes, organisms with a membrane-bound cell nucleus, that separates them from the prokaryotes archaea and bacteria. Diatoms are a type of plankton called phytoplankton, the most common of the plankton types. Diatoms also grow attached to benthic substrates, floating debris, and on macrophytes.
Explanation of Diatom in the largest biology dictionary online. Free learning resources for students covering all major areas of biology.
Diatoms are a common type of unicellular phytoplankton that likely originated around the Jurassic period. Diatoms can form colonies characterized by particular shapes (e.g., stars, fans, and ribbons) and are encapsulated by a unique cell wall composed of silica, termed a frustule.
Diatoms divide vegetatively, and, when resources are not limiting, at a fast rate. Diatoms respond to a certain number of environmental and biological variables (light, water temperature, substratum type, water velocity, mineral composition and content, nutrient availability, grazing) by shifting their community composition and growth forms.
Diatoms are a large group of single-celled algae that are encased in a silica cell wall. ... Biology 101 Syllabus Resource & Lesson Plans ... Diatoms: Definition, Characteristics & Types Related ...
Diatom Systems Biology; Diatoms are unicellular photosynthetic microbes that also happen to dominate many nutrient induced ocean and freshwater algal blooms, and a substantial proportion of existing oil reserves are originally derived of million year old diatom blooms. Not surprisingly, their propensity for fast growth and high yields, diatoms ...
ADVERTISEMENTS: In this article we will discuss about:- 1. Description of Diatoms 2. Characteristics of Diatoms 3. Classification 4. Occurrence 5. Plant Body 6. Cell Structure 7. Reproduction 8. Economic Importance. Description of Diatoms: It is a large group of algae consisting of 200 genera and over 10,000 species, out of which 92 genera and […]
Diatoms. Algae are a very diverse group of simple, nucleated, plant-like aquatic organisms that are primary producers. Primary producers are able to utilize photosynthesis to create organic molecules from sunlight, water, and carbon dioxide.Ecologically vital, algae account for roughly half of photosynthetic production of organic material on earth in both freshwater and marine environments.
Diatoms are unicellular algae. They are found in almost every aquatic environment including salt waters and fresh waters. They are most like plants because they use the process of photosynthesis to produce food. Most diatoms reproduce through both asexual reproduction and sexual reproduction. Almost all of them are autotrophs.
Illustrated descriptions of over 250 genera of diatoms are presented for the first time in this wide-ranging volume. The introduction describes the diatom cell in detail, the structure of the wall (often extremely beautiful designs), the cell contents and aspects of life cycle and cell division. The generic atlas section is the first account of diatom systematics since 1928, and each generic ...