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Bacteria fall under 2 categories based on their cell wall, either Gram positive or Gram negative. The bacterial cell wall is composed of peptidoglycan.
A special staining technique called Gram staining is used to differentiate between these bacteria. Gram positive bacteria, containing a thick layer of peptidoglycan, will retain/absorb more of the crystal violet dye and appear purple/blueish after being stained. Gram negative bacteria contain an outer membrane which Gram positive bacteria do not. Also the peptidoglycan layer is much thinner compared to that of a Gram positive bacteria. This thinner layer will not absorb as much of the crystal violet dye as compared to the Gram positive bacteria. When a counterstain is added, the Gram negative bacteria will appear reddish/pinkish.
Cliff notes
Bacteria classified as either
- Gram Positive
-Gram Negative
Gram Positive
- No outer membrane
- Thick layer of peptidoglycan
- Will appear purple when stained
Gram negative
- Contain an outer membrane
- Thin layer of peptidoglycan
- Will appear reddish/pink when stained
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoThe cell wall aids in classifying bacteria through the various shapes that they take. The three main shapes of bacteria are rods, helices and spheres.
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What portions of the bacteria cell aid the ability of a bacterium to cause infection?
fimbriae
What is a beneficial effect of monerans?
Monerans, now known as bacteria, have many beneficial effects. Some, such as the species that live in the intestines of cows, aid in digestion. In fact, eukaryotic cell origin is believed to have come from a symbiotic and benficial relationship between bacteria.
Is there a good bacteria?
Yes there are. Some good bacteria that help in the aid of digestion. Note, that there are some bad bacteria, but most are actually good.
Which group of organisms can live in the human intestine and aid in the digestive process?
Bacteria
What helps aid diffusion and cell recognition?
glycoproteins
What portions of the bacteria cell aid the ability of a bacterium to cause infection?
fimbriae
Can cell wall produce oxygen?
No, the cell wall is made up of cellulose (a carb) in plants and peptidoglycen (a carb and protein mix) in some bacterica. The only purpose of the cell wall is to provide aid for the structure of the cell. The cell wall lacks the necessary organelles to "produce" oxygen.
What helps to support the plant cell and help it to maintain its shape?
The thing that helps to support the plant cell and helps it to maintain its shape is called the cell wall. The cell wall is only found on plant cells.
What the surrounds the cell?
In plant cells, a cell membrane and a cell wall surround the cell to aid in support and protection. In animal cells, only a cell membrane surrounds the cell and controls what substances go in and go out of the cell.
What is plant cell walls made of?
A plant's cell wall is made up mostly of 2 compounds, cellulose and hemicellulose. Cellulose and hemicellulose aid in the release of protoplasts.
How does bacteria aid in tea industry?
Bacteria aid in tea industry in various ways. One of the most significant uses of bacteria is that it is used to cure tea leaves.
Does Bacteria on cellulose digestion?
yes some bacteria help aid digestion
How do bacteria help blue whales?
Blue whales have bacteria in their intestines to aid digestion.
What do the students using a microscope need to observe to decide if a slide contains a plant cell or an animal cell?
An animal cell will be more circular and a plant cell may be slightly green and will be more rectangular (no bones or muscles in plants-the cell wall must be strong in order to aid the plant in support).
What is the function of cellouse?
Cellulose provides structure and support to plant cells in their cell wall. Plant cells are more rigid and need to keep their structure more stable without the aid of a skeletal system like most animals have, so the cell wall filled with cellulose helps provide that structure.
What is a beneficial effect of monerans?
Monerans, now known as bacteria, have many beneficial effects. Some, such as the species that live in the intestines of cows, aid in digestion. In fact, eukaryotic cell origin is believed to have come from a symbiotic and benficial relationship between bacteria.
Why are some Bacteria categorized as good bacteria?
Good bacteria aid in the digestion of food and also help fight off invading microbes.
