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Bacteria

Bacteria are a large domain of single-celled, prokaryote microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals.

2,228 Questions

What is the most common injury from Francisella tularensis?

bone infection, infections of the sack around the heart

A short thick appendage that enables bacterium escherichia coil to attach to other surfaces is called?

The short thick appendage in Escherichia coli that allows it to attach to surfaces is called a pilus or fimbriae. These structures aid in adherence to host cells or environmental surfaces during infection.

What is the danger zone for bacterial growth?

The danger zone for bacterial growth is between 40°F (4°C) and 140°F (60°C). Bacteria can multiply rapidly within this temperature range, increasing the risk of foodborne illness if perishable foods are left in this range for an extended period of time. It is important to keep food either below 40°F or above 140°F to prevent bacterial growth.

Is there bacteria on bacteria?

There are no bacteria on other bacteria. Some bacteria do attack other bacteria by piercing their cell wall and injecting proteins.

Viruses can attack bacteria. They are called bacteriophages.

6 Name the pigment in cyanobacteria?

One of the pigments in Cyanobacteria is Zeaxanthin.

List 3 different products some bacteria are used to make?

Food- cheese, yogurt, buttermilk, sour cream

General-Insulin, Food(as said above), and chemicals made by bacteria that fights bacteria

Do bacteria sleep?

Not in the same way we do. Most don't live long enough for sleep to be effective, some go through regular periods of inactivity like we do, but because they don't have brains, they don't dream or anything like that, and pretty much all can go into long periods of hibernation when they get cold.

Is mycobacterium phlei gram positive or negative?

Although mycoplasma lack a cell wall and therefore test gram negative, they are considered to be descendents of 'nonsporulating and endospore forming gram-positive bacteria' (Madigan et al., 2009), such as Lactobacilli, Bacilli and Streptococci, (Dandekar et al., 2002), which have lost their cell wall. Mycoplasmas are therfore classed as gram- positive bacteria. This is supported by ribosomal RNA and DNA analysis.

What cyanobacteria contains a sheath?

Cyanobacteria in the genus Oscillatoria is known to contain a sheath. The sheath is a protective covering that surrounds the filamentous cells of Oscillatoria, providing structural support and protection.

What compound kills bacteria without harming the cells of humans?

Antibiotics such as penicillin and tetracycline are effective in killing bacteria by targeting specific bacterial cell components that are absent in human cells, thus reducing the risk of harm to human cells. However, misuse or overuse of antibiotics can lead to antibiotic resistance in bacteria, diminishing their efficacy over time.

What is sprilla?

I don't know if you meant spirilla or sprilla so........

Sprilla : A rare species of African Gorilla, the Sprilla is prized for its soft shag fur. The Sprilla are known to steal small children and babies, but mainly their diet consists of bushes and small animals. Their toenails contain a rare substance used in the Polio vaccine, and because of this they have been hunted into a state of near extinction

Spirilla : A spirilla is a bacterium (genus Spirillum) with a rigid spiral structure, found in stagnant water and sometimes causing disease.

What two factors must be present in the bacteria environment for you to see the green color?

To see green color in bacteria, two factors are required: the presence of a green fluorescent protein (GFP) gene, which codes for the green color, and an external source of blue or UV light to excite the GFP protein and produce the green fluorescence. The combination of these factors allows for the visualization of green color in bacteria.

Why was bacteria named bacteria?

The word "bacteria" comes from the Greek word for "staff" or "rod," describing the rod-like shape of some bacteria when first observed under a microscope. It was coined by German scientist Christian Gottfried Ehrenberg in 1828.

Within which structures in humans are bacteria and dead cells removed from lymph?

Bacteria and dead cells are removed from lymph within lymph nodes, which are small bean-shaped structures located along the lymphatic vessels. Lymph nodes contain immune cells that help filter and eliminate these harmful substances from the lymph fluid before it is returned to the blood circulation.

What is the chain-forming bacteria that cause the severe pharyngitis kwown as strep thorat are?

The bacteria that cause strep throat are Streptococcus pyogenes, also known as group A Streptococcus. These bacteria are typically found in chains, and can be transmitted through respiratory droplets from an infected person. Strep throat can be treated with antibiotics.

What if the difference between chemo stat and turbidostat?

Chemostat is the continuous addition of chemicals in a bioreactor in order to maintain their concentration and volume because here the organisms are continuously utilizing the exiting forms.

Turbidostat is to maintain of turbidity especially of medium inoculated with culture which can generally be done by regularl providing the substrate but in this case the volume may regularly change.

Test used for the identification of Staphylococcus aureus?

The coagulase test is commonly used to identify Staphylococcus aureus. This test detects the enzyme coagulase produced by S. aureus, which causes plasma to clot. Positive results indicate the presence of S. aureus, while negative results are obtained for other Staphylococcus species.

Is it true that Griffth discovered transformation in Bacteria?

No, Frederick Griffith did not discover bacterial transformation. It was Oswald Avery, Colin MacLeod, and Maclyn McCarty who demonstrated that DNA is the genetic material responsible for transformation in bacteria in their famous experiment in 1944.

Can gonorrhea cause nausea?

Gonorrhea typically does not cause nausea. Common symptoms of gonorrhea include pain or burning sensation when urinating, discharge from the genitals, and pain or swelling in the genitals. However, if left untreated, gonorrhea can lead to complications such as pelvic inflammatory disease in women which may cause symptoms like nausea, but this is not a direct symptom of gonorrhea itself.

How is francisella tularensis spread?

Francisella tularensis is a bacteria that can be spread by aerosol, therefore it is an airborne strain. If most commonly causes tularemia, a disease that attacks skin, eyes, and lungs and is more commonly known as rabbit fever.

Where did protists come from?

protista came from eubacteria whic came from archae bacteria whic has a prokharyotic cell this makes it multicellular and autotrophic and hetertrophic it was found from all of its small andcestors and was never found today. luckey it is still with us and we all aaws need bacteria

A safety precaution th researcher should take to avoid contact with bacteria?

Wearing appropriate personal protective equipment, such as gloves and a lab coat, can help prevent direct contact with bacteria. Additionally, ensuring proper ventilation in the laboratory and following established protocols for handling and disposing of bacterial cultures can further minimize the risk of exposure.

Explain the role of nitrifying bacteria in making nitrates available to plants?

Nitrifying bacteria convert ammonia, a form of nitrogen that plants cannot directly use, into nitrates through a two-step process. This conversion makes nitrates available for plants to take up and use as a nutrient for their growth and development. Nitrifying bacteria play a crucial role in the nitrogen cycle by facilitating the transformation of nitrogen into a form that plants can readily absorb.