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What were rickettsiae and chlamydia once thought to be?
Rickettsiae and Chlamydia were once thought to be viruses due to their small size and intracellular lifestyle, but they are actually classified as bacteria. They are both obligate intracellular pathogens that require host cells to multiply.
What is a pathogen that grows inside a cell called?
An intracellular pathogen is a pathogen that grows inside a host cell. Examples include viruses, some bacteria like Chlamydia, and certain parasites like Plasmodium.
What group includes some members that can carry out photosynthesis bacteria or a viruses?
Bacteria such as cyanobacteria are able to carry out photosynthesis, while viruses lack the cellular machinery to perform photosynthesis. Viruses are obligate intracellular parasites that require a host cell to replicate and do not possess the cellular machinery needed for photosynthesis.
What types of parasites reproduce only in living cells other than viruses?
Parasites that reproduce only in living cells, apart from viruses, include certain types of protozoa, such as Plasmodium species (which cause malaria) and Leishmania species. Additionally, some intracellular bacteria, like Chlamydia and Rickettsia, must replicate within host cells. These organisms rely on the host's cellular machinery for their reproduction and survival, making them obligate intracellular parasites.
Is proteins the major intracellular anion?
No; the major intracellular anion is phosphate.
What are characteristics of viruses?
viruses are obligate intracellular entities and are considered to be acellular
Why do you classify viruses as obligatory intracellular parasite?
Viruses need living cells to produce more viruses. They are obliged to use living cells.
What were rickettsiae and chlamydia once thought to be?
Rickettsiae and Chlamydia were once thought to be viruses due to their small size and intracellular lifestyle, but they are actually classified as bacteria. They are both obligate intracellular pathogens that require host cells to multiply.
Is the reason viruses are called obligatory intracellular parasites because they require a cell host to replicate?
yes.
What is a pathogen that grows inside a cell called?
An intracellular pathogen is a pathogen that grows inside a host cell. Examples include viruses, some bacteria like Chlamydia, and certain parasites like Plasmodium.
How does a herpes virus get energy?
Like other viruses, herpes is an obligate intracellular parasite. It gets its energy from the host cell's ATP.
What characteristics of a virus?
Viruses multiply within the host cells and give rise to the same genetic types. Viruses show extremely specific intracellular parasitism. They can easily be crystallized and precipitated. Viruses have no cytoplasm,nucleus,membranes,ribosomes,enzymes etc.
Do viruses produce their own food?
No, viruses do not produce their own food. They are obligate intracellular parasites that rely on host cells to replicate and generate new virus particles. Viruses lack the machinery necessary for carrying out metabolic processes like producing food.
Why are viruses difficult to culture?
Because viruses need a live host in order to reproduce. Viruses are obligate intracellular parasites. Therefore, they cannot reproduce outside their host cell, and therefore die out. They are diffcult to culture because you need something living in order to culture them in, and see the progress.
What group includes some members that can carry out photosynthesis bacteria or a viruses?
Bacteria such as cyanobacteria are able to carry out photosynthesis, while viruses lack the cellular machinery to perform photosynthesis. Viruses are obligate intracellular parasites that require a host cell to replicate and do not possess the cellular machinery needed for photosynthesis.
Are eubacteria intracellular or extracellular?
intracellular
Why can't you use biochemical testing for viruses?
Biochemical tests are not effective for identifying viruses because viruses lack the necessary biochemical machinery to conduct metabolic processes. Viruses are obligate intracellular parasites that rely on host cells to replicate, making them difficult to culture and study using traditional biochemical methods. Instead, techniques like nucleic acid amplification and serological testing are used to identify and characterize viruses.
