Bacteria are prokaryotes, meaning they have no membrane-bound nuclei, or organelles. They are also single celled, and typically autotrophic, which means that is can make its own food.
Protozoa are eukaryotic organisms, meaning they have a membrane-bound nucleus. It is also single celled, but it is a heterotroph, meaning it cannot make its own food.
Bacteria and protozoans are both single-celled organisms, but they have different cellular structures and genetic makeup. Bacteria have simpler cells without a nucleus, while protozoans have more complex cells with a nucleus. Additionally, bacteria can be autotrophs or heterotrophs, while protozoans are usually heterotrophs that ingest food.
Protists and bacteria belong to different domains of life, the eukaryotes and the prokaryotes, sundered by long eons of evolution. Nonetheless, like all forms of life on Earth, they share a common ancestor, and thus there are a number of intriguing similarities. Despite the incredible diversity of both protists and bacteria, you can make a few generalizations about what they share in common.
In protists, bacteria and all other organisms, certain sequences of chemical base pairs in DNA code for certain amino acids. The code is nearly universal, in the sense that the same sequence from the DNA will code for the same sequence of amino acids in both a protist and a bacterium. Exceptions to this universality include the fact that some bacteria use the sequence UAG to code for pyrrolysine rather than a stop codon, which is how it is used in other organisms. Nonetheless, for the most part, the code is a remarkable similarity between bacteria and protists.
Both bacteria and protists first transcribe sections of their DNA code into RNA, then translate this RNA into protein using complex structures called ribosomes. Again, protists and bacteria share these similarities with all other known forms of life. The structure of the ribosome differs somewhat between bacteria and eukaryotes like the protists. This difference is an important one, too, because some antibiotics kill bacteria by making use of differences between bacterial and eukaryotic ribosomes.
Both bacteria and protists have cell membranes made of chemicals called phospholipids. A phospholipid in a bacterium or a protist has a water-soluble group at one end and a water-insoluble tail at the other, so the cell membranes of bacteria and protists are constructed from a bilayer of phospholipids. The tails on both point toward the center of the bilayer. Bacteria have a cell wall in addition to their cell membrane, however, and some bacteria have both an inner and outer membrane.
Bacteria and protists share striking similarities in various biochemical processes that are also very similar to those in all other lifeforms. The process that bacteria and protists use to break down glucose is called glycolysis. Although there are some variations, glycolysis takes place in nearly all known organisms. Likewise, the process of DNA replication is very similar between bacteria and protists with some minor differences
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threekewldoods
Organisms from different domains (Bacteria, Archaea, and Eukarya) are the least similar to each other. These domains represent the highest level of biological classification and have significant differences in their cellular structures and functions.
Yes, you could still calculate Elodea's rate of photosynthesis by measuring the change in dissolved oxygen in the water over time. The presence of single-celled protozoans would not significantly affect the ability to measure the rate of oxygen production by the Elodea.
No, not all protozoans are prokaryotic and autotrophic. Protozoans are eukaryotic organisms that can be autotrophic or heterotrophic. Autotrophic protozoans can photosynthesize like plants, while heterotrophic protozoans rely on organic matter for nutrition.
These tiny organisms are called microorganisms. They include bacteria, viruses, archaea, fungi, and protists. They are invisible to the naked eye and require a microscope for observation.
An Amoeba is a single cell organism
Protozoans are eukaryotes. Bacteria are prokaryotes.
Organisms from different domains (Bacteria, Archaea, and Eukarya) are the least similar to each other. These domains represent the highest level of biological classification and have significant differences in their cellular structures and functions.
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bacteria,viruses,moeba,and paramesium
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No. Protozoans, now called protists, are eukaryotes while bacteria are prokaryote cells.
Protozoans are eukaryotic, single-celled organisms with complex cellular structures and can be parasitic or free-living, while bacteria are prokaryotic, single-celled organisms that are much smaller in size compared to protozoans and have simpler cellular structures. Additionally, some bacteria can cause diseases in humans and other organisms, whereas protozoans are generally not known to cause diseases.
Spore
Algae are autotrophs, while protozoans are heterotrophs.
No. Bacteria have prokaryotic cells, while protozoans have eukaryotic cells.
The are microbes like bacteria, fungi, viruses, and protozoans
list of decomposers are-------> fungi bacteria earthworms termites protozoans