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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
Does streptococcus mutans have cilia?
No, Streptococcus mutans does not have cilia. It is a type of bacteria that is classified as a cocci, meaning it has a spherical shape and is typically found in chains or clusters. Bacteria in this category generally move through other means, such as using flagella or by gliding, but Streptococcus mutans is non-motile and relies on environmental factors for movement.
Is the method for protein synthesis different in animals plants and bacteria?
No. This is one of those things that has been "conserved" over evolutionary time. It has worked well from the very beginning and so has been used again and again.
The only thing that is different is where it takes place and their size. In bacteria, ribosomes are found in the cytoplasm and in our cells, they are usually found embedded in the rough endoplasmic reticulum. The size of bacteria ribosomes are smaller.
Why does all bacteria ppeform protein synthesis?
All bacteria do perform protein synthesis because it is the process whereby the amino acids are linked together to form the proteins by using the mRNA as the template.
The incubation period depends on nature of the organism generally it varies between 10-18 hrs. A culture that has reached stationary phase of growth is good for the study. The cell number should be counted and standardized before starting the expt. using serial dilution method. Usually 10 to the power of 5 number cell are taken for doing MIC.
The continuous supply produced by the nose to moisturize the air and catch dust and bacteria is called mucus. Mucus is produced by specialized cells in the nasal passages and acts as a protective barrier against harmful particles, while also helping to humidify the air we breathe.
Which bacteria cause the greatest harm in the food industry?
There are several. These can be a great concern in different parts of the food industry (growing, processing raw food, food serving):
- Salmonella
- Listeria monocytogenes (commonly called Listeria)
- Escherichia coli (E. coli)
- Putrefactive bacteria which work on nitrogenous matter to cause ptomaine
What are two sources of energy for autotrophic bacteria?
Autotrophic bacteria can derive energy through the process of photosynthesis, using sunlight to produce energy. They can also obtain energy through chemosynthesis, where they use inorganic compounds like hydrogen sulfide or ammonia to generate energy.
What is the difference between fermentation and assimilation?
Fermentation is the process through which microorganisms convert sugars into acids, gases, or alcohol, often in the absence of oxygen. Assimilation, on the other hand, is the process by which organisms absorb nutrients into their cells and use them for growth and development. Fermentation is a metabolic process, while assimilation is a biological process related to obtaining and utilizing nutrients.
Why will water diffuse into a bacterial cell placed in fresh water?
Its through a process call osmosis 'the passage of a solvent through a semipermeable membrane from a less concentrated to a more concentrated solution until both solutions are of the same concentration'. This means that if the water is pure it will move into the cell. however if you use sugar water with a higher concentration than inside the cell water will move out. you can get the bacteria to shrink
Why is a sterile applicator swab used to obtain the specimen?
If you use one that isn't sterile, you will not know where the bacteria are from. The swab or the area you swabbed.
What bacteria does the leukocytes eat?
Leukocytes don't eat good bacteria which is helpful and does good things to the body. Leukocytes eat bad bacteria which is harmful and makes people sick.
Why cow dung are said to be anti bacterial?
Cow dung contains compounds like urea and ammonia that have antimicrobial properties. When cow dung is dried and used as a coating on floors and walls, it can help repel insects and bacteria. Additionally, the alkaline pH of cow dung creates an environment that is inhospitable for many microbes to thrive.
What attach to bacteria and inject hereditary material?
Bacteriophages (phages) attach to bacteria and inject their genetic material (either DNA or RNA) into the bacterial cell. This genetic material then takes over the bacterial cell's machinery, forcing it to produce more phages and ultimately leading to the destruction of the bacterium.
What skin infection caused by bacteria is common during adolescents?
Acne is a bacterial skin infection common during adolescence.
What environment do halophiles live?
It prefes salt rich environments such as the dead sea or salt lakes.
Yes, heat can kill you. The body has an ideal temperature that its enzymes and major body organs work at, which is around 37 degrees Celsius. if this is exceeded, then what happens is the enzymes in your body work less efficiently, meaning less respiration will happen. this will make you feel drowsy at first, lethargic as time goes by. if internal body temperature goes up to around forty to forty one degrees Celsius, then the enzymes denature, and do not work at all. this means no respiration will be happening, and the body will just shut down due to a lack of energy.
