Dictionary > Osmotrophy

Osmotrophy

Definition
noun
The process of taking in of dissolved organic compounds that are absorbed into the cells via extracellular digestions for nutrition.
Supplement
The organisms that used osmotrophy are known to be an osmotrophs which are usually found in protists and fungi although exclusively osmotrophic feeding in contemporary ecosystems are restricted to microscopic bacteria thereby used the process of osmosis for the movement of food although some macroscopic animals like molluscs, sponges, corals, brachiopods and echinoderms used osmotrophic feeding as supplemental food source.
Osmotrophy is an efficient means of gathering nutrients in microscopic organisms that relies on the surface area to ensure that proper diffusion occurs throughout the cell. When organisms increased in size the surface area per volume ratio drops and osmotrophy becomes insufficient to meet the nutrient demands.
In stagnant waters photoautotrophs has a relative advantage over heterotrophic osmotrophs since the flux of photon as energy source is not hindered at low temperatures thus, it depend on diffusion for mass acquisition through Brownian diffusion.
The fluid motion of osmotrophs is an impenetrable importance because asymptotic reactions occurs in the absence of fluid motion, thus movement bring closer to the cell that correspond to the highest gradients though diffusional core is safe on average concentrations.
See also:
• autotrophy
• heterotrophy
• phototrophy
phagotrophy
• mixotrophy
Related terms:
• osmotrophic (adjective)


You will also like...

DNA molecule
Genetic Control – On and Off Genes

Genes are the blueprint of our bodies, a blueprint that creates a variety of proteins essential to any organism's surviv..

Cells in different stages of meiosis
Meiosis – The Genetics of Reproduction

Meiosis is a form of cell division that creates gametes. It is comprised of two divisions that in the end, the resulting..

Gene Regulation in Eukaryotes
Gene Regulation in Eukaryotes

Learn about the general structure of a eukaryotic gene, the transcription factors, and post-transcriptional regulation....

Chromosomes X and Y and Sex Determination
Chromosomes X and Y and Sex Determination

This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..

Thermographic image of face and neck
Regulation of Organic Metabolism, Growth and Energy Balance

The human body is capable of regulating growth and energy balance through various feedback mechanisms. Get to know the e..

Homeostatic Mechanisms and Cellular Communication
Homeostatic Mechanisms and Cellular Communication

Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory res..

Related Articles...

No related articles found

See all Related Topics