What is the difference between monera and protists

Mode of Nutrition It can be autotrophic or heterotrophic. It can be holozoic or parasitic or photosynthetic. Presence of Flagella and Cilia Not found in monera.

It is used for locomotion in some organisms, some also have pseuopodia. Mode of reproduction Asexual by binary fission or budding. Both Asexual binary fission or multiple fission or sexual. Found They are cosmopolitan, which means they are found everywhere. They are found partially in aquatic environment, moist soil, shady places, etc. Classified as Archaebacteria, bacteria, cyanobacteria. Diatoms, Algae, molds and protozoans. Green algae, red algae, slime molds, euglena, and water molds are the examples of protists.

As said above, these are the unicellular, prokaryotic organisms lacking well-defined organelles and nucleus. But these are found abundantly among all types organisms present on earth, due to their adaptability in all kinds of habitat. It is estimated that a single fall of water contains around 50 billion bacteria.

They are found in living as well as in the non-living environment. They have their vital role in the nitrogen cycle and carbon cycles.

They reproduce through asexual reproduction, by binary fission, budding or fragmentation. DNA is double stranded, suspended in the cytoplasm of the cell of organisms termed as the nucleoid. These are metabolically active and uses a variety of substances to gain energy.

The cell wall is rigid. Because of their capability of surviving in harsh and extreme climatic conditions like in deserts, hot springs, acidic soils, etc. Three types of archaebacteria are found: methanogens, halophiles and thermophiles. Methanogens live in oxygen-free environments whereas halophiles live in water with high salt concentrations. Thermophiles live in hot environments. Eubacteria are found in almost all habitats like soil, water and in and on large organisms.

Some eubacteria generate parasitic and pathogenic effects on their hosts. The cell wall of eubacteria is made up of peptidoglycans and murins. Two types of eubacteria are found: gram positive and gram negative bacteria. Cyanobacteria are the only photosynthesizing prokaryotes. Photosynthesis occurs in the folds of the outer membranes of cyanobacteria.

Cyanobacteria were responsible for the conversion of the reducing atmosphere of early earth into the oxidizing atmosphere. They are found in each and every aquatic habitat from fresh water to ocean.

Cyanobacteria is shown in figure 1. Protista is the kingdom which contains the second least organized organisms on earth. Protists are eukaryotes, which can be either unicellular or multicellular organism. But, they are neither fungi, plants nor animals. Since protists are eukaryotes, they contain membrane-bound organelles as well as the nucleus. Metabolism of protists depends on the type of organism.

Some are autotrophs like algae whereas the others are heterotrophs like euglena and amoeba. Protists can also be parasites.

Protists exhibit sexual reproduction by producing gametes and asexual reproduction by binary fission. Algae, protozoans and molds are the two domains of protists.

Algae are plant-like, mostly unicellular organisms. Protists are sometimes visible even with only a magnifying glass. Monerans are usually much smaller than that. However, blue-green bacteria, which belong to monera, are larger. Kyle Glazier has been writing since He frequently writes about health and legal issues and has written for publications in Arizona and Colorado, including the "East Valley Tribune" and "American Cowboy Magazine.

General Characteristics of Protista. Monera: a Monera has a unicellular prokaryotic cellular organization which lack membrane-bounded organelles. Protista: Protista has a unicellular eukaryotic cellular organization with membrane-bounded organelles.

Monera: Flagella and Cilia are usually not found in Monera. Monera: Mode of nutrition is either autotrophic synthesize their own food or heterotrophic cannot synthesize their own food.

Protists: The mode of reproduction can be asexual binary fission or multiple fission or sexual. Yashoda Ramyajith Somarathna holds a B. Your email address will not be published. Figure 1: Cyanobacterium.