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when i did my project on the dog and humans mouth some of the bacteria did change color it was weard my test subjects had multipule colored bacteria in there mouth inclewding the people some were green and others were hot pink. not shere why but it was still cool. if you do diside to do a project on this subject use a substince named agar it helps the coloneys grow and be shere to keep the serfice smooth. hope this helped and remember im no expert so the ansers not perfict. SEE YA NICKY
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What two factors must be present in the bacteria environment for you to see the green color?
To see green color in bacteria, two factors are required: the presence of a green fluorescent protein (GFP) gene, which codes for the green color, and an external source of blue or UV light to excite the GFP protein and produce the green fluorescence. The combination of these factors allows for the visualization of green color in bacteria.
Why did bacteria in the agar dish turn yellow?
to see time fly! You may be referring a bacterial transformation experiment. If so, the bacteria turns color to indicate that the DNA that was transferred to the bacteria is being expressed and the transformation was successful. If you are referring to the natural color of bacteria growing in large colonies on agar, that beige color is their natural color only visible when they are growing in colonies by the millions. The yellow color could also be a fungus which has contaminated your plate which happens often in a non-sterile classroom environment. Never open a petri dish after bacterial growth or fungal growth is evident.
How does thickness of peptidoglycan affect gram stain outcome?
For Gram Stain experiment. The gram-positive, g+, which stained purple in color (use Crystal violet) as the bacteria contain a thicker layer of peptidoglycan with no lipopolysaccharide and protein bound the outer membrane of the bacteria (bacteria A). The gram-negative, g-, which stained in red (if the safranin (red dye/counter stain is use) appear due to the bacteria (bacteria B) which lack of peptidoglycan and it is bound by a lipopolysaccharide and protein layer. The thicker the peptidoglycan, the more coloring agent (crystal violet ions, CV+) it can absorb. Hence, give more purple in color to the bacteria and this will be the gram-positive, g+ bacteria. On the other hands, bacteria B seem has thinner peptidoglycan thus it absorb less purple color from the CV+, and after decolourise (using alcohol) and stained with safranin (red dye), only the bacteria with lack of peptidoglycan change to red hence we can say bacteria B as gram-negative, g-. Hence the outcome is the bacteria with thicker peptidoglycan layer be the gram-positive, g+(purple color) while the thinner peptidoglycan layer be the gram-negative, g-. (red color)
What is the easiest way to recognize foods contaminated with spoilage bacteria?
Changes in color and smell.
Some bacteria are greenish in color and live on the surface of water These organisms are probably?
cyanobacteria, also known as blue-green algae. They are photosynthetic bacteria that can live on the surface of water and produce a greenish color due to their chlorophyll content.
Which bacteria is bad?
purple bacteria is good but every other color is bad
What bacteria is greenish in color and live on the surface of water?
Algae
The color of photosynthetic bacteria is?
different colors depending on their pigment
What is the advantage of the gram stain over the simple stain?
gram staining differentiates between gram negative and gram positive bacteria by showing different colors. it shows blue or purple like color for gram positive bacteria and red color for gram negative bacteria. where as simple stain gives the same color to all the types of bacteria. hence it is difficult to differentiate between them.
What color is germs?
What color are germs? Germs can be many different colors. But most germs are a very clear green color. Germs get their color by the type of germ or it is. The most common type of germs is bacteria. Bacteria is a type of germ. That is why there are more clearly green colored germs.
What is the difference in color between gram positive and gram negative bacteria?
Gram positive bacteria appear purple or blue when stained with the Gram stain, while gram negative bacteria appear pink or red. This color difference is due to the thickness of the cell wall and the presence of an outer membrane in gram negative bacteria.
What are two ways Bacteria and Blue-green bacteria differ?
Blue green bacteria has color pigments and bacteria doesn't and bacteria is made with many products for humans to use and blue green is harmful they live inc ponds ,mrivers , lakes
What two factors must be present in the bacteria environment for you to see the green color?
To see green color in bacteria, two factors are required: the presence of a green fluorescent protein (GFP) gene, which codes for the green color, and an external source of blue or UV light to excite the GFP protein and produce the green fluorescence. The combination of these factors allows for the visualization of green color in bacteria.
How is gram stain used in an experiment involving bacteria?
Bacteria are sorted into two major groups depending on their color after being treated with a dye.
Why did bacteria in the agar dish turn yellow?
to see time fly! You may be referring a bacterial transformation experiment. If so, the bacteria turns color to indicate that the DNA that was transferred to the bacteria is being expressed and the transformation was successful. If you are referring to the natural color of bacteria growing in large colonies on agar, that beige color is their natural color only visible when they are growing in colonies by the millions. The yellow color could also be a fungus which has contaminated your plate which happens often in a non-sterile classroom environment. Never open a petri dish after bacterial growth or fungal growth is evident.
What color is gram-negative stain?
The color of a gram-negative stain is pink or red. This staining technique is used to differentiate bacteria based on their cell wall composition, with gram-negative bacteria retaining the pink/red color after staining.
Do pigment producing bacteria alway color the medium in which they are grown?
they do not color the whole medium but only area of growth. And yes they are always produce color on pigment production
