Alcohol-acetone
Gram-positive cells are purple and the Gram-negative cells are red.
In a Gram stain procedure, gram-positive cells appear purple due to their thick peptidoglycan layer, which retains the crystal violet stain. In contrast, gram-negative cells appear pink or red, as their thinner peptidoglycan layer does not retain the crystal violet and is counterstained with safranin. This difference in color is key to differentiating between the two types of bacteria.
Stem cells are the cells that stay young by not elongating or differentiating. These cells have the ability to self-renew and differentiate into various cell types, allowing for tissue regeneration and repair throughout an organism's lifespan.
they differentiate the body's own cell to enemy
Yes, O positive can donate red blood cells to AB negative. O positive is a universal donor for red blood cells, meaning it can be transfused to individuals with any blood type. However, O positive donors are not universal plasma donors for AB negative recipients.
Gram-positive cells are purple and the Gram-negative cells are red.
Timing is critical when decolorizing in Gram staining because if the decolorizer is left on for too long, it can wash away the crystal violet stain from Gram-positive cells, leading to a false negative result. Conversely, if the decolorizer is not left on long enough, the crystal violet stain may not be fully removed from Gram-negative cells, leading to a false positive result. Timing ensures accurate differentiation between Gram-positive and Gram-negative bacteria.
negative at a resting value of -70mV
Eukaryotic cells, such as those found in the gumline, do not fall under the categories of gram-positive or gram-negative bacteria. The gram staining technique is used to determine the cell wall structure of bacteria, not eukaryotic cells. Eukaryotic cells have a different cellular structure, including a nucleus and membrane-bound organelles.
Contamination
Cheek cells do not have a cell wall, therefore they are neither gram positive nor gram negative. Gram staining is a technique used to differentiate bacteria based on the composition of their cell wall, which animal cells like cheek cells do not possess.
No, your blood type cannot change from positive to negative. Blood type is determined by the presence or absence of certain antigens on red blood cells, not by the positive or negative Rh factor.
Not really possible to make a venn diagram, but here's a list: Similarities: In Bacteria Involve a peptidoglycan layer Differences Gram-negative is much more toxic Gram-negative is crystal violet in the Gram stain while Gram-positive is red
Stem cells are the cells that stay young by not elongating or differentiating. These cells have the ability to self-renew and differentiate into various cell types, allowing for tissue regeneration and repair throughout an organism's lifespan.
The negative affects are nausea, vomiting and hair loss. The positive affects such as chemo therapy, which decreases or stops the cancer cells.
they differentiate the body's own cell to enemy
Negative selection and positive selection are two processes that occur in the immune system to ensure the proper functioning of immune cells. Negative selection eliminates self-reactive immune cells that could potentially attack the body's own tissues, while positive selection promotes the survival and maturation of immune cells that can effectively recognize and respond to foreign pathogens. In essence, negative selection removes harmful immune cells, while positive selection enhances the development of beneficial immune cells.