What activity can bacteria do very quickly?
Bacteria use binary fission( splitting into two identical bacteria) to reproduce, They do this at such a high rate and short time that can grow in number very fast. They reproduce so quickly so they can survive because if they did not have the numbers they had they would be killed much more quickly.
Not always. Sometimes, during protein synthesis, the DNA of bacteria makes a mistake and copies the wrong protein causing a defect. This can cause the bacteria in the same colony to be slightly different. Also, bacteria can evolve very quickly, so this can also cause the bacteria in one colony to be slightly different.
Pasteurisation does not kill all bacteria in the milk. Some bacteria are not killed in the heating process and will start to multiply again after pasteurisation. Cooling after pasteurisation is needed in order to limit the amount of bacterial growth that occurs. Bacteria reproduce very slowly in cold conditions, but very quickly in hot conditions. Cooling is the only preservative that is used after pasteurisation.
1. Vast numbers of bacteria live in our bodies. One example is found in the intestine. This bacteria and humans have formed a symbioses with each other. The bacteria help us with digestion and to produce vitamins. In exchange, they soak up a little extra food for themselves! 2. Bacteria is very important in medicine. Bacteria can actually help to fight themselves! 3. Bacteria are an extremely important part of your ecosystem. If, for some…
Very very very very very very very very very very very very small Depends on the type of bacteria. There are some bacteria that are extremely, extremely small(as my colleague above me has so equivocally stated), and there are some bacteria that can grow to be the size of the period at the end of this sentence.
It takes a few hours before a person feels ill because the amount of bacteria in your body needs to increase. When there is a huge amount of bacteria in your body, you fall ill very quickly. If you have just eaten something that is not good, there isn't a huge amount of bacteria in your body (the bacteria have not replicated), as they have just entered.
they eat, grow and didvide. Bacteria will divide every 20 minutes, in a perfect growing environment. This kind of exponential growth has the potential to be very deadly, very quickly, as bacteria kill their host cell within the human body. Luckily, bacteria hit their carrying capacity in the human body at a relatively low manageable level for the immune system to fight off due to competition resulting from such limiting factors as space and food
Bacteria will divide every 20 minutes, in a perfect growing environment. This kind of exponential growth has the potential to be very deadly, very quickly, as bacteria kill their host cell within the human body. Luckily, bacteria hit their carrying capacity in the human body at a relatively low manageable level for the immune system to fight off due to competition resulting from such limiting factors as space and food. Bacteria in the intestines and…
You would salt the meat sufficient to dry it out - in very hot and/or humid climates you would almost have to pack the meat into a case of salt to get the proper dehydration. The salt reduces the water activity (basically the amount of water available to bacteria) in the meat - if the water activity is too low bacteria can't grow and therefore can't spoil the meat.
Two reasons: 1- Bacteria are very simple simple celled organisms, which allows them to adapt quickly. In a changing environment, the bacteria don't have multiple organ systems to adapt. 2- Bacteria have very quick reproductive/division cycle. A generation for humans is typically defined as 20-25 years, whereas a bacterial generation can be as quick as hours to minutes. This means bacteria can reproduce exponentially overnight, while it could take humans hundreds of years to produce…