Bacteria

The type of bacteria that bad chicken can cause is salmonella or campylobacter. Food poisoning from either of these bacteria can cause nausea, vomiting, diarrhea, fever, muscle ache, headache and a loss of appetite.

Isolated colonies of bacteria are the result of a single bacterium which has replicated many times and eventually formed a visable lump of genetically identical bacteria.

The colony's shape, texture and colour can somtimes be helpful in identifying the species of bacteria. For example collonies of Serratia marrceccens are typically pink, moist looking, round and small on nutrient agar.

I laymans terms isolated colonies are the single separated spots (normally semi-spherical like zits) on the plate after it has been incubated. If the bacteria are put on the plate too close together they will form a lawn which looks like the whole plate is covered evenly.

maybe they wants to study a specific human growth hormone, the seientist will need a large supply to work with.

Spirogyra is usually found in fresh water, ponds, ditches, and clean water with lots of nutrients. They grow underwater but when there is a lot of sunlight they produce oxygen as well.

Half Answer: There are both Gram positive and Gram negative stains that are used to identify different types of Bacteria. They depend upon 'membrane content' - some stains highlight only the nuclear envelope.

Bacteria are very useful micro organisms in various ways. Some of the benefits of bacteria are listed here: Nitrogen fixing bacteria are very important for converting the atmospheric nitrogen into nitrogenous compounds. Plants also make symbiotic relationship with bacteria to get important nutrients from soil like nitrogen fixing bacteria make symbiotic relations with plants. Bacteria act as the decompose rs to decompose dead plants and animals. Animals that eat plants like cows have bacteria in their stomachs to digest cell walls of plant cells. Bacteria are also used in various industries for turning wine into vinegar and to make cheese, yogurt and other dairy products. Moreover, bacteria are also used in biotechnology for making proteins and bio genetics for various purposes. All these benefits show that beneficial bacteria appear as the most useful organisms for us.

According to my bio book, I think it's Alfred Hershey and Martha Chase, in the HERSHEY-CHASE experiment.

Bacteria in our digestive tract help break down food so that we can assimilate it.

Bacteria in the soil help break down soil nutrients so that plants can assimilate it.

Bacteria in milk help turn milk into cheese.

(That's all I've got right now.)

Campylobacter Pylori is what it used to be called, as it was originally believed to be a campylobacter type of cell, however this is not correct and it is a helicobacter, so what you said is actually the scientific name

Viruses cause a damage when they transport into other animals or humans. You can get viruses from people who are snizzing, or even kissing you. Also, viruses can go to your lungs and do the damage.

Genetic exchanges among bacteria occur by several mechanisms. In transformation, the recipient bacterium takes up extracellular donor DNA. In transduction, donor DNA packaged in a bacteriophage infects the recipient bacterium. In conjugation, the donor bacterium transfers DNA to the recipient by mating.

There are many statements which are true for bacteria. Bacteria come in various shapes and they consist of a single cell. Bacteria are known to be small in size but very complex in terms of structure.

Methane gas is produced as a waste product by certain bacteria during the process of anaerobic digestion. This methane gas can be captured and used as a renewable energy source for fuel, typically in the form of biogas.

They become dormant (sleeping) and stop growing or grow very slowly as the conditions are not correct for them to grow or reproduce. They need warmth to do that. However, they are not killed either. Temperatures of over 63*C are needed to kill bacteria in food, but there are some types that are killed before this and some that can survive in extreme heat. These are more rare though and are not likely to exist in food, or anything that a normal human would regularly be in contact with.

Bacteria is considered primitive because it has about the most simple structure of all living things. It isn't quite a simple as a virus (which is not considered life, but is called non-life), but it is an "independent organism" that can do all the basic things a living organism can do. And bacteria, because of its primitive structure, is though by those who subscribe to evolution as one of the earliest (most primitive) forms of life. Bacteria has been on earth a long, long time, and it is an elegantly simple living thing. That's the long and short of it. Wikipedia has an excellent post on bacteria. You'll find a link to the article below.

nitrogen

Yes, ALL matter has atoms. If it exsits, it has atoms.

well....obviously its a brain-less question.........bacteria is like a robot operating by a code....

it just have some principles of basic survival.... 

i obtain pure culture of bacteria from a mixed culture for obtain

pure one bacterial culture

Lactobacillus casei is the bacterium present in curd. It produces lactic acid, which in turn reduces the pH and coagulates milk proteins (primarily casein) forming curd.

The air is about 80% nitrogen- but cannot be used by plants for food. Nitrogen fixing bacteria transform nitrogen in the air to nitrogen in the soil that plants CAN use- resulting in greatly improved plant growth, and more fertile soil.

cook your food in an acidic enviorment and keep hot food at 140 degrees while serving and cool quickly

if its in warm weather the bacteria will multiply more rapidly than in a colder climate the bacteria multiples by the minute it may double it may triple depending on the climate the warmer the faster the bacteria will multiply and will cause food spoil.

A gram-negative cell will lose its outer membrane and the peptidoglycan layer is left exposed.

or it is best to use younger cells ( 12-24hr) because older gram positive bacteria are subject to break down of the cell wall by enzymes that are produced with age which may result ingram variable staining.