How Do Microbes Cultivate Yeasts
Microbes are everywhere.
Objectives:
The experiment performed in the Lab was isolation of microbes taken from us and the environment. We used Nutrient Agar which is a growth medium used to culture microorganisms or small plants and Sabourand Dextrose Agar plates used to cultivate moulds and yeasts.
The objective of it was to demonstrate that microbes are everywhere. We expected to find a variety of bacteria, moulds and yeasts.
We were introduced to aseptic techniques as they help ensure that only certain microorganisms are present in the plate. These methods also guarantee that microorganisms do not escape from the specific petri dish, contaminating the laboratory and possibly causing disease.
Describe features of colonies.
Materials …show more content…
We aimed to see microbial growth of each sample with a variety of bacterial colonies with several shapes and colours.
Perhaps microorganisms taken from the drainage pipe were in the lag phase of growth and needed a longer or different type of incubation.
As per sample taken from the cheek we can distinguish several bacterial colonies circular in shape. Each distinct circular colony should represent an individual bacterial cell or group that has divided repeatedly.
Some fungi and moulds can cause a variety of skin diseases such as athlete 's foot, jock itch, and ringworm. They can also cause pulmonary and internal infections. However, others are beneficial such as Penicillium which produces the antibiotic penicillin and Saccharomyces is the yeast used to make bread rise and to brew beer.
Many bacteria are dangerous pathogens such as Salmonella (food poisoning), Bacillus anthracis (anthrax), MRSA responsible for many serious infections. Nevertheless not all bacteria cause diseases. Lactic Acid bacteria enhance health and protect us against pathogens and carcinogens. There are many different types of bacteria in our mouth and intestines that produce some vitamins and ferment fiber to produce short-chain fatty
Objectives:
The experiment performed in the Lab was isolation of microbes taken from us and the environment. We used Nutrient Agar which is a growth medium used to culture microorganisms or small plants and Sabourand Dextrose Agar plates used to cultivate moulds and yeasts.
The objective of it was to demonstrate that microbes are everywhere. We expected to find a variety of bacteria, moulds and yeasts.
We were introduced to aseptic techniques as they help ensure that only certain microorganisms are present in the plate. These methods also guarantee that microorganisms do not escape from the specific petri dish, contaminating the laboratory and possibly causing disease.
Describe features of colonies.
Materials …show more content…
We aimed to see microbial growth of each sample with a variety of bacterial colonies with several shapes and colours.
Perhaps microorganisms taken from the drainage pipe were in the lag phase of growth and needed a longer or different type of incubation.
As per sample taken from the cheek we can distinguish several bacterial colonies circular in shape. Each distinct circular colony should represent an individual bacterial cell or group that has divided repeatedly.
Some fungi and moulds can cause a variety of skin diseases such as athlete 's foot, jock itch, and ringworm. They can also cause pulmonary and internal infections. However, others are beneficial such as Penicillium which produces the antibiotic penicillin and Saccharomyces is the yeast used to make bread rise and to brew beer.
Many bacteria are dangerous pathogens such as Salmonella (food poisoning), Bacillus anthracis (anthrax), MRSA responsible for many serious infections. Nevertheless not all bacteria cause diseases. Lactic Acid bacteria enhance health and protect us against pathogens and carcinogens. There are many different types of bacteria in our mouth and intestines that produce some vitamins and ferment fiber to produce short-chain fatty