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Why is it necessary to excessively rinse the smear with water in experiment identifying bacteria using gram stain?
smear should be rinsed with distill water so that all the small particles attach to the smear will washed away such as some time the crystals of dye are attached to the smear which give the illusion of microbial cell some time, distill water is used because it is free from other microbial cell and ions which can harm the smear.
What else can I help you with?
Who Was responsible for the experiment with mice and bacteria that led to the hypothesis that when two bacteria were mixed together something was passed to the living cells?
This experiment was conducted by Frederick Griffith in 1928. He observed that when he mixed a harmless strain of bacteria with a heat-killed virulent strain, the harmless bacteria were transformed into a virulent form. This led to the hypothesis that something in the heat-killed bacteria had transformed the live bacteria.
Can bacteria grow in Vaseline?
No, bacteria cannot grow in Vaseline because it lacks the water and nutrients necessary for bacterial growth. Vaseline is a petroleum jelly that creates a barrier on the skin and does not support microbial growth.
What was 'transformed' in Griffith's experiment?
In Griffith's experiment, non-pathogenic bacteria were transformed into pathogenic bacteria by being exposed to heat-killed pathogenic bacteria, a process now known as transformation. This led to the discovery of genetic material transfer between bacteria.
What bacteria killing fungus did Fleming isolate in his 1920 experiment?
Fleming isolated Penicillium notatum, a fungus that produced the antibiotic penicillin, in his 1928 experiment.
Griffith's experiment showed that live bacteria without capsules acquired the ability to make capsules from dead bacteria with capsules in a process griffith called?
Griffith's experiment demonstrated bacterial transformation, where genetic material from dead bacteria was taken up by live bacteria, resulting in the acquisition of new genetic traits, such as the ability to produce capsules. This process, also known as horizontal gene transfer, played a crucial role in understanding how genetic information can be transferred between bacteria.
Why do people care about bacteria?
People care about bacteria, because bacteria causes illness which makes it necessary to study and experiment on it to come up with antidotes. Bacteria also helps in dairy companies creating milk and cheese. Also, some bacteria are pollutant detectors and scientist use them in rivers to tell if pollution is a problem.
Are bacteria necessary for life?
no
What was the variable in Fleming's experiment?
In Fleming's experiment, the variable was the type of bacteria being tested for their susceptibility to penicillin.
Why is it important to discourage a kitten from licking you excessively?
It is important to discourage a kitten from licking you excessively because their saliva can contain bacteria that may lead to skin irritation or infection. Additionally, allowing a kitten to lick you excessively can reinforce this behavior, leading to potential issues with boundaries and hygiene.
Minimum number of bacteria to be visible?
Refer to the lab experiment to get answer.
Does a daily dose of penicillin affect the number of bacteria in an experiment?
Yes
In a experiment on bacteria using different amount of antibiotic is an example of?
a variable?
Bacteria is necessary for the production of?
Depends on the bacteria. For example, bacteria E. Coli is needed for production of vitamin K.
Who Was responsible for the experiment with mice and bacteria that led to the hypothesis that when two bacteria were mixed together something was passed to the living cells?
This experiment was conducted by Frederick Griffith in 1928. He observed that when he mixed a harmless strain of bacteria with a heat-killed virulent strain, the harmless bacteria were transformed into a virulent form. This led to the hypothesis that something in the heat-killed bacteria had transformed the live bacteria.
Which organisms are necessary for the recycling of nitrogen?
Bacteria.
What is a throat culture?
A throat culture is a technique for identifying disease bacteria in material taken from the throat.
How can bacteria be harmful to your health?
Some bacteria make you sick by interfering with the chemistry of your body, by poisoning you with their waste products, or by excessively stimulating your immune system. Some bacteria are helpful to your bodily functions, notably those that normally live in your intestines. Most bacteria have no effect on people.
