Hint: Archaebacteria are called ancient bacteria whereas eubacteria are called true bacteria. Unlike eubacteria, archaebacteria can survive in extreme conditions. Complete answer: Archaebacteria are usually found in extreme conditions whereas eubacteria are found everywhere on the surface of Earth.
Bacteria, also called germs, are microscopic organisms not visible with the naked eye. Bacteria are everywhere, both inside and outside of your body. Bacteria can live in a variety of environments, from hot water to ice.
Bacteria are eukaryotes, is incorrect. All bacterial cells are considered prokaryotic because they lack a nucleus and membrane-bound organelles.
Kingdom Monera [10,000 species]: Unicellular and colonial--including the true bacteria (eubacteria) and cyanobacteria (blue-green algae).
Desmids are also known as golden algae or golden-brown algae because of their distinctive golden colour, which is caused by the pigment fucoxanthin and the use of oil droplets as food reserves. This class of algae includes approximately 33 different genera and 1200 different species.
Golden algae are also called desmids. Eubacteria are also called false bacteria. Phycomycetes are also called algal fungi. ∗ Eubacteria are also called true bacteria.
Question : Which one of the following statements is wrong ?
| Question | Which one of the following statements is wrong ? |
|---|
| Chapter Name | Biological Classification |
| Subject | Biology (more Questions) |
| Class | 11th |
The bacterial flagellum is a helical filamentous organelle responsible for motility. In bacterial species possessing flagella at the cell exterior, the long helical flagellar filament acts as a molecular screw to generate thrust.
The ribosomes of eubacteria are similar in structure to those in eukaryotes and archaea, but differ in molecular detail. This has two important consequences. First, sequencing ribosomal RNA molecules is a useful tool for understanding the evolutionary diversification of the Eubacteria.
It is found in fresh water only. It may be unicellular , colonial or filamentous. They often form bloom in non - polluted fresh water bodies. Colonies are not surrounded by gelatinous sheath.
Complete Answer:Cyanobacteria are also named Blue-green algae. They are bacteria which are photosynthetic. Thus, option A is not the correct option.
Cyanobacteria, often known as blue-green algae, are among the most abundant organisms in oceans and fresh water. They are similar to green plants because they can use the energy from sunlight to make their own food through photosynthesis.
Explanation: Archaebacteria are found in extremely harsh environments. Halophiles are found in extreme saline conditions. The difference in the cell wall structure compared to bacteria makes them survive extreme conditions.
Prokaryotic Eubacteria includes bacteria with cell walls consisting of peptidoglycan. However, not all bacteria have cell walls. But all eubacteria have a cell membrane.
Cyanobacteria, and bacteria in general, are prokaryotic life forms. This characteristic is distinctive of bacteria and archaea; all other life forms on Earth, including real algae, consist of eukaryotic cells with organelles and with genetic material contained in one place (the nucleus).
Food: Eubacteria are both auto- and heterotrophic. When they are autotrophic, they use both chemical synthesis and photosynthesis.
Today, archaebacteria carry the scientific name Archaea and have their own distinct kingdom.
It is believed that these represent the early forms of life. Hence, archaebacteria are called "
oldest,living beings" .
Question : What is true about archaebacteria.
| Question | What is true about archaebacteria |
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| Question Video Duration | 4m8s |
Definition. Eubacteria, or “true†bacteria, are single-celled prokaryotic microorganisms that have a range of characteristics and are found in various conditions throughout all parts of the world. All types of bacteria fall under this title, except for archaebacteria.
There are three notable common traits of bacteria, 1) lack of membrane-bound organelles, 2) unicellular and 3) small (usually microscopic) size. Not all prokaryotes are bacteria, some are archaea, which although they share common physicals features to bacteria, are ancestrally different from bacteria.
Technically a microorganism or microbe is an organism that is microscopic. Microorganisms can be bacteria, fungi, archaea or protists. The term microorganisms does not include viruses and prions, which are generally classified as non-living.
Where are archaea found? Archaea were originally only found in extreme environments which is where they are most commonly studied. They are now known to live in many environments that we would consider hospitable such as lakes, soil, wetlands, and oceans. Many archaea are extremophiles i.e lovers of extreme conditions.
The six Kingdoms
| A | B |
|---|
| Archaebacteria | prokaryote or eukaryote; autotrophic or heterotrophic; unicellular; found in the hot spots of the ocean; some are helpful; ancient |
| Eubacteria | prokaryotes; autotrophic or heterotrophic; unicellular; could be good or bad bacteria |
| Response | the reaction to a stimulus |
