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What are four characteristic used to identify prokaryotes?
The rob shape, the spherical shape, the corkscrew and the
What is most common prokaryotes?
The most common prokaryotes are bacteria. These refers to organisms that are usually single-celled and mainly are in spherical, helical and rod shapes.
What is a spherical prokaryote?
There is no such thing as a spherical prokaryote. Prokaryotes are single-celled organisms that lack a distinct nucleus and organelles. They come in various shapes and sizes, but spherical is not a specific characteristic associated with prokaryotes.
Are Streptococcus prokaryotes?
Yes, Streptococcus is a genus of prokaryotic organisms. They are bacteria that belong to the family Streptococcaceae and are characterized by their spherical shape and tendency to form chains. Like all prokaryotes, they lack a membrane-bound nucleus and other organelles, and their genetic material is organized in a single circular chromosome. Streptococcus species are known for their role in various infections and are commonly found in the human body.
What shaped bacteria occur singly pairs chains or clusters?
Bacteria can be classified based on their shape and arrangement. Common shapes include cocci (spherical), bacilli (rod-shaped), and spirilla (spiral-shaped). These bacteria can occur singly, in pairs (diplococci or diplobacilli), in chains (streptococci or streptobacilli), or in clusters (staphylococci). The arrangement often reflects their mode of cell division and the plane in which they divide.
Why dont food chains occur often in nature?
Food chains do not occur often in nature because, many organisms do specialize in their diets.
Where does the process of making RNA from DNA occur?
nucleus for eukaryotes, cytoplasm for prokaryotes.
Why post-translational modification of protein does not occur in prokaryotes?
Post-translational modifications of proteins do occur in prokaryotes, but they are generally less complex than in eukaryotes. Prokaryotes lack certain cellular compartments where modifications like glycosylation occur in eukaryotes. Additionally, prokaryotes have simpler metabolic pathways that may not require extensive post-translational modifications for protein function.
Does endocytosis occur in prokaryotes?
Yes, endocytosis does not occur in prokaryotes because they lack membrane-bound organelles and do not perform phagocytosis, pinocytosis, or receptor-mediated endocytosis like eukaryotic cells. Instead, prokaryotes rely on other mechanisms such as simple diffusion, facilitated diffusion, and active transport to take in nutrients and molecules.
Does photophosphorylation occur in only prokaryotes?
No, photophosphorylation occurs in both prokaryotes and eukaryotes. It is a process in photosynthesis where light energy is used to phosphorylate ADP to ATP. In prokaryotes, it mainly occurs in the thylakoid membranes of the chloroplasts, while in eukaryotes, it occurs in the chloroplasts of plant cells.
Where does translation occure in prokaryotic?
In prokaryotes, the processes of transcription and translation occur simultaneously in the cytoplasm, allowing for a rapid cellular response to an environmental cue.
In prokaryotes the electron transport chain is in the what?
Electron transport chains are located there are many different electron donors and electron acceptors. Reverse electron transport is the most important in prokaryotic electron transport chains.
