Biohazard tape on a Petri dish that contains a microbiological (microbial) culture of bacteria and ascomycetous fungi grown on agar.
A Petri dish that contains Gram-positive lactobacillus bacteria grown on agar. This bacteria is a major part of the microbiota at a number of human body sites. Lactobacillus is a common yogurt probiotic.
Bromocresol purple indicator changes its color depending on the pH of the solution. Here bromocresol purple indicator has been added to an Erlenmeyer flask with 0.01M solution of sodium hydroxide (NaOH). The solution turned purple, indicating a base.
Petri dishes that contain Gram-positive lactobacillus bacteria grown on agar. This bacteria is a major part of the microbiota at a number of human body sites. Lactobacillus is a common yogurt probiotic.
0.2 M solution of potassium iodide (KI) is poured into a beaker containing 0.1 M solution of lead(II) nitrate (Pb(NO3)2). Yellow lead(II) iodide precipitate (PbI2) is formed: KI + Pb(NO3)2 -> PbI2 + KNO3. This is an example of a double displacement reaction.
Dietary supplement capsules that contain lactobacillus bacteria cultures as wells as colonies of Gram-positive lactobacillus bacteria grown on agar in Petri dishes. Lactobacillus is a common probiotic. This bacteria is a major part of the microbiota at a number of human body sites.
Bromothymol blue indicator changes its color depending on the pH of the solution. Here a dropper is used to add bromothymol blue indicator to an beaker with 0.01M solution of sodium hydroxide (NaOH). The solution turns blue, indicating a base.
A gloved hand holding a Petri dish that contains Gram-positive lactobacillus bacteria grown on agar. This bacteria is a major part of the microbiota at a number of human body sites. Lactobacillus is a common yogurt probiotic.
Copper (II) hydroxide precipitate (Cu(OH)2) formed by adding 0.1 M copper sulfate (CuSO4) solution to a 0.1 M solution of sodium hydroxide (NaOH). The reaction is CuSO4 + NaOH -> Cu(OH)2 + Na2SO4. This is an example of a double replacement reaction.
Bromothymol blue indicator changes its color depending on the pH of the solution, it is yellow below 6.0 and blue above 7.6. Here bromothymol blue has been added to an Erlenmeyer flask with vinegar (diluted acetic acid, CH3COOH). The solution turned yellow, indicating an acid.
Inoculation loop over a microbiological (microbial) culture of bacteria and ascomycetous fungi grown on agar in a Petri dish.
0.1M solution of copper sulfate (CuSO4) in a volumetric flask, surrounded by various laboratory glassware.
Gram-positive lactobacillus bacteria grown on agar in a Petri dish. Lactobacillus is a common yogurt probiotic. This bacteria is a major part of the microbiota at a number of human body sites.
Gram-positive lactobacillus bacteria grown on agar in a Petri dish, surrounded by empty Petri dishes. Lactobacillus is a common yogurt probiotic. This bacteria is a major part of the microbiota at a number of human body sites.
Microbiological (microbial) culture of bacteria and ascomycetous fungi grown on agar in a Petri dish, surrounded by empty Petri dishes.
Phenol red indicator changes its color depending on the pH of the solution. Here phenol red has been added to a graduated cylinder with vinegar (diluted acetic acid, CH3COOH). The solution turned yellow, indicating an acid.
Petri dishes that contain Gram-positive lactobacillus bacteria grown on agar. This bacteria is a major part of the microbiota at a number of human body sites. Lactobacillus is a common yogurt probiotic.
A Petri dish that contains Gram-positive lactobacillus bacteria grown on agar. This bacteria is a major part of the microbiota at a number of human body sites. Lactobacillus is a common yogurt probiotic.
Bromocresol purple indicator changes its color depending on the pH of the solution. Here a dropper is used to add bromocresol purple indicator to an Erlenmeyer flask with 0.01M solution of sodium hydroxide (NaOH). The solution turns purple, indicating a base.
A gloved hand holding a Petri dish that contains Gram-positive lactobacillus bacteria grown on agar. This bacteria is a major part of the microbiota at a number of human body sites. Lactobacillus is a common yogurt probiotic.