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What else can I help you with?
What is the difference between gram-positive and gram-negative bacteria?
The presence of thick cell wall. Gram positives have a thick cell wall and remain blue. Gram negatives have a thin cell wall where the blue stain washes out and then will stain pink with the counter stain.
What causes blue stain in catheter leg bag?
Blue stain in catheter leg bags is often caused by the presence of certain bacteria, particularly Pseudomonas aeruginosa, which can produce blue-green pigments. Additionally, the use of certain medications, such as methylene blue, or dyes can also contribute to discoloration. The staining may indicate infection or contamination, necessitating prompt medical attention to prevent complications. Regular maintenance and hygiene practices can help minimize such occurrences.
What stain would you select if asked to evaluate a patient's bone marrow smear for the presence of siderosomes?
new methylene blue
How do the presence and amount of phytoplankton affect the shade of blue of the ocean?
Phytoplankton absorb red and blue light, but reflect green light. Therefore, the presence and amount of phytoplankton can indicate the health of the ocean.
What does appearance of a blue or pink color in thioglycolate tube mean?
To indicate a presence of free residual oxygen.
What does the dark iodine stain indicate?
The dark iodine stain indicates the presence of starch in a sample. When iodine solution is applied to a substance containing starch, it forms a complex that results in a blue-black coloration. This reaction is commonly used in laboratory settings to test for starch in various materials, such as food or biological samples. The intensity of the color can also give a rough indication of the starch concentration.
Does a reticulocyte stain with cresyl blue?
Stain with basic dyes cytoplasm shows blue precipitates
What stain is used to stain cheek cells?
methelyn blue
What is litumus paper used to indicate?
litmus paper indicates wether a substance is an acid or a base if it is an acid the paper is turns red, if base it turns blue
Which biological molecule is iodine used to indicate?
Iodine is used to indicate the presence of starch. When iodine comes into contact with starch, it forms a dark blue-black complex, providing a visual indicator of the presence of starch in a biological sample.
What is the function of bromthymol blue in CO2?
Bromthymol blue is used as an indicator to detect the presence of carbon dioxide (CO2) in a solution. It changes color in the presence of acidic conditions, which can indicate the presence of CO2 as it forms carbonic acid when dissolved in water.
How can you tell by using iodine if a sugar is a monosaccharide disaccharide or polysaccharide?
Adding iodine to the solution will turn it a deep blue which indicate presence of polysaccharides.
