Question

which microbes are important in our daily life?

Answer 1

1. Bifidobacterium Longum This microorganism is found in large amounts in the intestines of infants. They release several acids which make an environment that is toxic to many virulent bacteria. In this way, they serve to protect humans. 

2. Bacteroides Thetaiotamicron Humans cannot on their own digest many plant food molecules. Present in the GI tract, the bacteria Bacteroides thetaiotamicron break down such molecules. This allows humans to digest the components. Without these microbes vegetarians would be in trouble. 

3. Lactobacillus Johnsonii This bacterium is of critical importance to humans, especially infants. It is found in the gut and makes the process of milk digestion smoother. 

4. Escherichia Coli  Escherichia coli bacteria synthesize the vital vitamin K in humans' guts. Abundance of this vitamin allows humans' blood clotting mechanisms to function properly. This vitamin is also needed for other purposes. 

5. Viridans Streptococci These microbes thrive in the throat. Though humans are not born with them, as infants cultures find a way of getting in. They grow there so well that they leave little space for other, more harmful bacteria to colonize.