Bacteria

Listeria monocytogenes thrives in moist environments and can grow at refrigeration temperatures. It can also survive in acidic or salty conditions, making it resilient in a variety of food products. Additionally, it can multiply in biofilms and is particularly dangerous to pregnant women, newborns, the elderly, and individuals with weakened immune systems.

Neisseria gonorrhoeae is a Gram-negative diplococcus, appearing as pairs of cells under the microscope. The bacteria are non-motile, non-spore forming, and can exhibit a kidney bean shape.

Yes, the bacteria in the large intestine feed on undigested material passing through and produce vitamins such as vitamin K and some B vitamins as byproducts of their metabolism. These vitamins are then absorbed by the body and play important roles in various physiological functions.

The bacteria kingdom was discovered by Anton van Leeuwenhoek in the 17th century. Leeuwenhoek is considered the father of microbiology for his pioneering work in observing and documenting microorganisms, including bacteria, using a microscope.

Gram-positive bacterium are those that are stained dark blue or violet by Gram Staining. This is in contrast to Gram-Negative Bacterium, which cannot retain the crystal violet stain, instead taking up the counter-stain and appearing red or pink. Gram-positive organisms are able to retain the crystal violet stain because of the high amount of peptidoglycan in the cell wall. Gram-positive cell walls typically lack the outer membrane found in Gram-negative bacteria.

Bacterial conjugation is sexual reproduction, when the two cells interchange nuclei and separate then divide several times. If you observe some ciliates such as paramecia under the microscope you might notice the process of conjugation by the Transverse fission of the cell.

Organisms that obtain energy directly from inorganic molecules are known as chemotrophs. These organisms use chemical reactions to derive energy for their metabolic processes, instead of relying on sunlight like phototrophs. Examples include certain bacteria and archaea living in deep-sea hydrothermal vents or in soil.

No, bacteria do not have mouths like animals do. Instead, they absorb nutrients through their cell wall or membrane. Bacteria use various methods to obtain nutrients, such as secreting enzymes to break down molecules in their environment and then absorbing the smaller components.

Moraxella catarrhalis is a Gram-negative aerobic diplococcus that typically appears as pairs of kidney-shaped cells. It does not form spores or capsules, and its cells are non-motile. M. catarrhalis is often found in pairs or short chains when visualized under a microscope.

No Micrococcus luteus is aerobic organism, Staphylococcus aureus is often mistaken for Micrococcus luteus but its main difference is that it is a Facultative anaerobe

Bacteria are single-celled microorganisms that lack a nucleus and organelles. They have a cell wall and reproduce through binary fission. Bacteria can be beneficial or harmful to humans and other organisms.

The common name for Methanobacterium is methane bacteria.

Sweat-eating bacteria, such as Corynebacterium spp. and various Brevibacterium spp., can contribute to body odor. These bacteria break down sweat into compounds that emit odors, leading to the characteristic smell associated with body odor.

There are many different types of bacteria that grow on doorknobs, including, but not limited to: * entameba * balantidium * giardia * trichomona * e coli These, as well as other bacteria, also grow on other surfaces. The single most effective way to prevent this is hand washing. That is why it is so important to always wash your hands every time you come home after going anywhere. You can't depend on others to wash their hands to keep surfaces that you come into contact with clean, so you have to make sure to keep your hands clean to prevent these germs from infecting you, and making you sick. It's also a good idea to get in the habit of cleaning your doorknobs, light switches, faucet handles, etc. with a disinfectant on regular basis.

No, plankton are not bacteria. Plankton are diverse organisms that can include bacteria, algae, and small animals. Bacteria are single-celled microorganisms, while plankton encompass a wide variety of both single-celled and multicellular organisms that drift in water.

Bacteria can affect various parts of the body, including the skin, respiratory system, digestive tract, urinary tract, and reproductive organs. The specific effects of bacteria depend on the type of bacteria and the individual's immune response.

Bacteria does not always a negative effect upon your health. In fact your body contains a number of commensals which live within you body, such as in your gut or genital tract, or such as Staph aureus, which lives harmlessly lives upon your skin. Bacteria only becomes harmful to body, once it has been displaced. In iv drug users, S. aureus can be injected directly into the blood stream causing a condition known as bacterial endocarditis, where vegetations form upon the heart valves (most commonly on the righthand side in IVDU). Use of antibiotics can also lead to the erradication of your natural commensals throughout the GI tract, and lead to the overpowering habituation of C. difficile, which is usually kept to a low number by other bacteria which thrive in the GI tract. This can cause excessive diarrhoea and possible death.

Cilia are hair like structures which work as a collective to move substances. They are found commonly in the trachea, where they cilia waft the mucus, carrying things such as bacteria or dust, up the trachea, to where it can either be expelled from the body, or swallowed to be destroyed by the stomach acid. Here, they are a part of the immune system, as they help to prevent foreign objects from entering the lungs and causing infection. Cilia are also found in the fallopian tubes of females, where they waft the ovum towards to uterus.

The flagella has two functions. The first is the most obvious; for movement, and the second is that it can be used as a sensory organelle. They are most commonly associated with the sperm cell, which uses its flagella to propel itself forwards, moving it in a whip like motion. The way in which the flagella is used as a sensory organelle is in that they protrude from the main body of the cell, meaning they can test the temperatures and chemical balances in their surroundings.

The answer depends somewhat on where you are trying to control the bacteria. Bacteria are living things, and as such, need certain conditions to live. Most bacteria have a temperature range at which they function best; they also need "food" sources and an environment free of certain toxic chemicals. Some bacteria need oxygen; some don't.

Controlling bacteria, then, means removing the things they need, or changing their environmental conditions. Changing temperature can control bacteria; this is why refrigerating, freezing, and cooking foods all reduce their numbers. Our bodies are even built to do this; a fever is the body's way of trying to make itself a "hostile environment" for infectious agents, including bacteria. (The body also has a "defense" system, in which specialized cells "patrol" the body searching out and attacking invaders; so, in a way, "having a healthy immune system" is another way to control bacteria, within the body.) Bacteria also require a "food source," so, theoretically, removing it from their environment would reduce their population. However, they are very tiny, so the "food" needed would also be in very small amounts, so this is probably not practical or realistically possible (especially if that "environment" is YOU, and they are living off the food you eat!).

Adding chemicals that are poisonous to the bacteria can also control their numbers. Household cleaners, including bleach and plain-old soap, are poisonous to many kinds of bacteria, so washing surfaces with these will reduce their number. Antibiotics are poisonous to bacteria (but not to people!), which is why they are prescribed for bacterial infections of the body. These poisons may compromise the bacteria's physical structure, its ability to metabolize, or its ability to reproduce itself.

Some bacteria are harmed by exposure to certain wavelengths of light, so using special "lights" that produce those wavelengths can destroy them. Many bacteria need water to survive; keeping a surface dry can help control bacterial populations.

Around the house, controlling bacteria can be a matter of recognizing where they can come from and minimizing contamination (i.e., not adding more!). Many raw meats contain bacteria; reducing the number of surfaces these raw meats touch can help. Bacteria can "hide" in scratches; from their perspective, scratches or even rough surfaces are as big as valleys. From our perspective, they are so small we can't clean "inside" them, so we can't remove the bacteria. Keeping raw foods on smooth surfaces can help control bacteria, because we can wash them away more effectively.

Having written all that, I'm REALLY hoping that you didn't mean "control bacteria" in the sense of "Rise up and take over the world, my minions!" LOL

Bacteria reproduce by a process called binary fission, where a single bacterium divides into two identical daughter cells. This rapid and efficient form of reproduction allows bacteria to multiply quickly under favorable conditions, leading to rapid population growth.

Bacteria in the intestines help with digestion, assist in the absorption of nutrients, and play a key role in the immune system. They help to break down food particles that the body cannot digest on its own and produce certain vitamins that are essential for our health.

Only plants have cell walls, but if you're referring to bacteria you may be thinking of a spore.

A spore can be a structure that bacteria use as a special coating that protects it from harm; an example is the anthrax bacteria which is extremely difficult to kill.

EDIT: Actually all bacteria DO have a cell wall made of polysaccharides instead of plant cellulose and a spore is not something formed around a cell, rather inside it and then escaping when the part of the cell outside the spore dies. However, neither of these have to do with this question. The question is about the glycocalyx around some bacterial cells. The main purpose is that it prevents phagocytosis (being eaten by other cells, usually white blood cells) making the bacteria much harder to kill, however it does serve to prevent from desiccation (drying out) and can stop bacteriophages (viruses that attack bacteria) from invading. They are also sticky, allowing them to adhere to other cells and surfaces (this is especially obnoxious when you are trying to obtain a sample for a slide and they keep sticking together).

One common biochemical test for Porphyromonas gingivalis is the detection of the enzyme trypsin-like activity using a selective agar medium containing blood, cysteine, and antibiotics. This test takes advantage of the proteolytic activity of P. gingivalis to degrade the blood and form a distinct zone of clearing around the bacterial colonies. Other tests may include detecting specific enzymes or metabolic byproducts unique to P. gingivalis.